Note: All part numbers
are RoHS Compliant.
BUCHANAN Terminal Blocks
Table of Contents—NEMA ETB
Overview (Selector Chart) ………………………………………………………………240-243
Catalog Numbering Code ……………………………………………………………………244
Miniature Blocks, 100 Series ……………………………………………………………245-248
Medium Duty, 900 Series/ERT Series (Radiation Resistant) …………………………249-257
Heavy Duty, 200 Series …………………………………………………………………259-266
Heavy Duty, Phenolic, 200 Series ………………………………………………………267-272
Intermediate Heavy Duty, 800 Series …………………………………………………273-276
Ultra Heavy Duty, 400 Series ……………………………………………………………277-279
Fuse & Switch ……………………………………………………………………………281-288
One-Piece Phenolic Blocks ………………………………………………………………289-292
Accessories ……………………………………………………………………………………293
Technical Summary ………………………………………………………………………294-295
UL 1059 Basic Voltage Rating ………………………………………………………………296
NEMA Terminal
Blocks
6
239
Catalog 1308389
Revised 6-07
www.tycoelectronics.com
Dimensions are in millimeters
and inches unless otherwise
specified.
Dimensions are shown for
reference purposes only.
Specifications subject
to change.
USA: 1-800-522-6752
Canada: 1-905-470-4425
Mexico: 01-800-733-8926
C. America: 52-55-1106-0803
South America: 55-11-2103-6000
Hong Kong: 852-2735-1628
Japan: 81-44-844-8013
UK: 8706-080-208
Note: All part numbers
are RoHS Compliant.
BUCHANAN Terminal Blocks
NEMA ETB Selector Chart
High Density Series 100
Medium Duty Series 900
High
Density
Miniature
High
Density
Single Tier
High
Density
Double Tier
Medium
Duty
Mounting
Direct Mount,
Miniature
Channel
Direct Mount,
Standard &
Breakaway
Channel
Channel only:
Standard &
Breakaway
Direct Mount
Standard, Miniature
& Breakaway
Channels
AWG Wire
Range
#30-12
#30-12
#30-12
#22-8
#22-8
10*, #22-14
#22-10
Tubular
Screw
Strap
Screw
Plug-In
Contact Types
Tubular Clamp
Tubular
Clamp
R=Shipped with
screws
raised
B=Shipped with
screws
bottomed
B
B
Ampacity
B
B
28A
28A
25A
30A
50A
35A*, 15A
30A
300 V
600 V
(Limited
Power Circuits)
600 V
600 V
600 V
600 V
600 V
600 V
.25"
[6.35]
.25"
[6.35]
.24"
[6.10]
.375”
[9.53]
.375”
[9.53]
.375”
[9.53]
.375”
[9.53]
Nylon or
Polypropylene
Nylon
Nylon
PCT
PCT
PCT
PCT
Flammability
Rating
UL94V-2 or
UL94V-0
UL94V-2
UL94V-2
UL94V-0
UL94V-0
UL94V-0
UL94V-0
Max. Service
Temperature
125˚C (257˚F) or
105˚C (222˚F)
125˚C (257˚F)
125˚C (257˚F)
150°C (302°F)
150°C (302°F)
250
251
Voltage
Center-toCenter
Spacing
Housing
Material
Pages
150°C (302°F) 150°C (302°F)
250
246
250
*Acceptable for 35A max. factory wiring only when used with 10AWG wire preterminated with suitable ring tongue terminals.
LR25557
E63810
240
Catalog 1308389
Revised 6-07
www.tycoelectronics.com
Dimensions are in millimeters
and inches unless otherwise
specified.
Dimensions are shown for
reference purposes only.
Specifications subject
to change.
USA: 1-800-522-6752
Canada: 1-905-470-4425
Mexico: 01-800-733-8926
C. America: 52-55-1106-0803
South America: 55-11-2103-6000
Hong Kong: 852-2735-1628
Japan: 81-44-844-8013
UK: 8706-080-208
Note: All part numbers
are RoHS Compliant.
BUCHANAN Terminal Blocks
NEMA ETB Selector Chart (Continued)
Medium Duty
Series 900
AWG Wire
Range
Contact Types
R=Shipped with
screws
raised
B=Shipped with
screws
bottomed
Ampacity
Heavy Duty Series 200
Medium
Duty
Medium Duty
Radiation Resistant
Nylon or
Polypropylene
Direct Mount
Standard, Miniature
& Breakaway
Channels
Standard and
Breakaway Channels
Direct Mount
or:
Flat Base fits Miniature Channel.
Dovetail Base fits Standard &
Breakaway Channels
#10*, #22-14
—
#18-12
#22-8
#22-8
Quick
Connect
Tubular Quick Connect
Combination
Tubular
Clamp
Tubular
Screw
Strap
Screw
B
B
B
30A
50A
35A*, 15A
B
B
20A
20A
#18-6
smaller
#18-4
#18-8
#10 &
smaller
B
65A
R
B
85A
50A
B
35A
300 V
Center-toCenter
Spacing
.375"
[9.53]
.375"
[9.53]
.50"
[12.70]
Housing
Material
PCT
RYTON
Nylon or Polypropylene
Flammability
Rating
UL94V-0
UL94V-0
UL94V-2 or UL94V-0
Max. Service
Temperature
150°C (302°F)
250
600 V
200°C (392°F)
252
251
6
Tubular Tubular Strap Strap
Clamp Screw Clamp Screw
Voltage
Pages
NEMA Terminal
Blocks
Mounting
ERT Series
600 V
125˚C (257˚F) or
105°C (222°F)
260-261
LR25557
E63810
241
Catalog 1308389
Revised 6-07
www.tycoelectronics.com
Dimensions are in millimeters
and inches unless otherwise
specified.
Dimensions are shown for
reference purposes only.
Specifications subject
to change.
USA: 1-800-522-6752
Canada: 1-905-470-4425
Mexico: 01-800-733-8926
C. America: 52-55-1106-0803
South America: 55-11-2103-6000
Hong Kong: 852-2735-1628
Japan: 81-44-844-8013
UK: 8706-080-208
Note: All part numbers
are RoHS Compliant.
BUCHANAN Terminal Blocks
NEMA ETB Selector Chart (Continued)
Heavy Duty Series 200
Mounting
AWG Wire
Range
Contact Types
R=Shipped with
screws
raised
B=Shipped with
screws
bottomed
Ampacity
Intermediate
Heavy
Duty
Ultra
Heavy
Duty
Direct Mount
or Standard
& Breakaway
Channels
Direct Mount
or Standard &
Breakaway
Channels
Direct Mount
or Standard &
Breakaway
Channels
#12-1/0
#12-2/0
kcmil (MCM)
#18-4
Tubular
Clamp
Tubular
Screw
65A
Ultra Heavy Duty Series 400
Phenolic
#18-6
B
Intermediate HD Series 800
#18-8
#10 &
smaller
Strap Strap
Clamp Screw
R
85A
B
B
50A
35A
Tubular
Screw
Tubular
Screw
Tubular
Screw
B
R
R
175A
255A
150A
Voltage
600 V
600 V
600 V
Center-toCenter
Spacing
.56"
[14.22]
.75"
[19.05]
1.19"
[30.23]
Housing
Material
Phenolic
Nylon
Phenolic
Flammability
Rating
UL94V-1
UL94V-2
UL94V-1
Max. Service
Temperature
150°C (302°F)
125˚C (257˚F)
150˚C (302˚F)
267-272
273-276
277-279
Pages
242
Catalog 1308389
Revised 6-07
www.tycoelectronics.com
Dimensions are in millimeters
and inches unless otherwise
specified.
Dimensions are shown for
reference purposes only.
Specifications subject
to change.
USA: 1-800-522-6752
Canada: 1-905-470-4425
Mexico: 01-800-733-8926
C. America: 52-55-1106-0803
South America: 55-11-2103-6000
Hong Kong: 852-2735-1628
Japan: 81-44-844-8013
UK: 8706-080-208
Note: All part numbers
are RoHS Compliant.
BUCHANAN Terminal Blocks
NEMA ETB Selector Chart (Continued)
Fuse and Switch Series 300
One-Piece
Direct Mount
or
Standard &
Breakaway
Channels
Mounting
AWG Wire
Range
Contact Types
One-Piece
Phenolic
Direct Mount
or Standard &
Breakaway
Channels
NEMA Terminal
Blocks
Nylon or
Polypropylene
Direct Mount
#18-8
#18-8
#8
#18-8
& Smaller
#18-8
#8
& Smaller
#6
#8
#8
Tubular
Screw
Strap
Clamp
Strap
Screw
Tubular
Screw
Strap
Clamp
Strap
Screw
Tubular
Clamp
Strap
Clamp
Strap
Screw
B
B
B
B
B
R=Shipped with
screws
raised
B=Shipped with
screws
bottomed
B
B
B
B
15A Switch
30A Fuse
15A Switch
30A Fuse
Voltage
600 V
600 V
600 V
Center-toCenter
Spacing
.75"
[19.05]
.75"
[19.05]
.63"
[16.00]
Nylon or
Polypropylene
Phenolic
Phenolic
Flammability
Rating
UL94V-2 or
UL94V-0
UL94V-1
UL94V-1
Max. Service
Temperature
125˚C (257˚F) or
105°C (222°F)
150˚C (302˚F)
150˚C (302˚F)
282-285
286-288
289-292
Ampacity
Housing
Material
Pages
70A
50A
6
50A
243
Catalog 1308389
Revised 6-07
www.tycoelectronics.com
Dimensions are in millimeters
and inches unless otherwise
specified.
Dimensions are shown for
reference purposes only.
Specifications subject
to change.
USA: 1-800-522-6752
Canada: 1-905-470-4425
Mexico: 01-800-733-8926
C. America: 52-55-1106-0803
South America: 55-11-2103-6000
Hong Kong: 852-2735-1628
Japan: 81-44-844-8013
UK: 8706-080-208
Note: All part numbers
are RoHS Compliant.
BUCHANAN Terminal Blocks
Catalog Numbering Code
P
0
P = Polypropylene
(blank for Nylon
and Phenolic)
D = Duramax
Contacts
(Nickel plated
contacts for
highly corrosive
environments)
6
2
5
1 = Plain Top
2 = White Painted Top
3 = End Section
0 = Dovetail Base
(Blank for Flat
Mount)
Series
1 = High Density
2 = Heavy Duty
3 = Fuse & Switch
4 = Ultra Heavy Duty
8 = Intermediate Heavy Duty
xxx
1
Marking Strip
(Factory
Assembled
Blocks)
No. of
Circuits
(for Factory
Assembled
Blocks)
Type of Contact
1 = Strap Screw
2 = Tubular Screw (Heavy Duty
Fuse & Switch)
3 = Tubular Clamp (Heavy Duty)
4 = Tube Screw
5 = Tube Clamp
6 = Tubular Screw (Ultra Heavy
Duty)
8 = Strap Clamp
9 = Tubular Screw / Quick Connect
0 = None (End Section)
Note: Some catalog number combinations are not valid.
Check appropriate catalog pages before ordering.
244
Catalog 1308389
Revised 6-07
www.tycoelectronics.com
Dimensions are in millimeters
and inches unless otherwise
specified.
Dimensions are shown for
reference purposes only.
Specifications subject
to change.
USA: 1-800-522-6752
Canada: 1-905-470-4425
Mexico: 01-800-733-8926
C. America: 52-55-1106-0803
South America: 55-11-2103-6000
Hong Kong: 852-2735-1628
Japan: 81-44-844-8013
UK: 8706-080-208
Note: All part numbers
are RoHS Compliant.
BUCHANAN Terminal Blocks
100 Series High Density Miniature Blocks
Product Facts
n No
NEMA Terminal
Blocks
Wire Crimping Required
— tubular clamp contacts
hold wire ranging from #30
to #12 AWG better than
crimp-on terminals.
n Saves Installation Time and
Costs — tubular clamp
contacts are supplied with
captive screws backed out.
n Nylon housing standard;
polypropylene for fire
retardant characteristics.
n Positive Stop — helps
prevent wire from being
inserted too far, and helps
prevent screw from being
tightened on insulation. Easy
access contact provides for
safe, reliable, and costeffective connection.
n Quick Installation and
Change — additional
sections may be added or
removed without removing
channel mounting screw.
n Choice of Five Mounting
Channels:
n Miniature aluminum
n Zinc-plated steel
n Pre-punched aluminum
n Break-away steel
n Single and Double Tier
blocks fit all standard
BUCHANAN mounting
channels. Single Tier blocks
fit both miniature and
standard channels.
n Choice of Marking Surfaces
— matte-finish area for
marking directly on block;
slide-in vinyl strip (blank or
preprinted) also available.
6
These miniature terminal
blocks fit on a much smaller
channel to save valuable
panel space or can be
surface mounted directly to
the panel. Miniature blocks
accept wire as large as #12
AWG and are available in
four styles: Miniature
(nylon), Miniature
(polypropylene), Single Tier
and Double Tier.
LR25557
E63810
245
Catalog 1308389
Revised 6-07
www.tycoelectronics.com
Dimensions are in millimeters
and inches unless otherwise
specified.
Dimensions are shown for
reference purposes only.
Specifications subject
to change.
USA: 1-800-522-6752
Canada: 1-905-470-4425
Mexico: 01-800-733-8926
C. America: 52-55-1106-0803
South America: 55-11-2103-6000
Hong Kong: 852-2735-1628
Japan: 81-44-844-8013
UK: 8706-080-208
Note: All part numbers
are RoHS Compliant.
BUCHANAN Terminal Blocks
100 Series High Density Miniature Blocks
Miniature
Nylon
Characteristics
Miniature
Polypropylene
P125
Part
Number
4-1437392-7
3-1437389-3
DP125
Nylon
125˚C (257˚F)
UL94V-2
5/16
6-9
—
—
—
—
—
20 A @ 300V
30-12
Spacing
Pitch
Terminals per Foot
Accessories
End Section (gray)
Jumper, 2 pole
Jumper, 10 pole
Jumper, Inter-tier
Single Tier
Double Tier
115-BU
Part
Number
1437381-5
105-BU
Part
Number
1-1437392-7
7-1437389-1
D115
3-1437389-2
D105
2-1437392-9
Polypropylene
105˚C (221˚F)
UL94V-0
5/16
6-9
—
—
—
—
—
Nylon
125˚C (257˚F)
UL94V-2
5/16
6-9
—
—
—
—
—
Nylon
125˚C (257˚F)
UL94V-2
5/16
6-9
—
—
—
—
—
—
—
20 A @ 300V
30-12
—
—
20 A @ 600V
30-12
—
—
20 A @ 600V
30-12
—
—
0.25"
48
—
—
0.25"
48
—
—
0.25"
48
—
—
0.24"
102
—
—
130-BU
10
—
—
2-1437392-5
1437381-1
—
—
P130
10
—
—
4-1437392-9
1437381-1
—
—
120
10
—
—
2-1437392-1
1437381-1
—
—
110-BU
—
J10
J2-BU
1-1437392-8
—
3-1437392-1
3-1437392-2
Mounting Channel
Miniature (3ft)
Steel, Zinc plated (6ft)
Steel, Zinc plated (3ft)
Breakaway, steel
Pre-punched aluminum (6ft)
Pre-punched aluminum (3ft)
12
—
—
—
—
—
1437381-8
—
—
—
—
—
12
—
—
—
—
—
1437381-8
—
—
—
—
—
12
60
63-BU
60B36
64
67
1437381-8
9-1437381-1
9-1437381-8
9-1437381-2
9-1437381-9
1437382-2
—
60
63-BU
60B36
64
67
—
9-1437381-1
9-1437381-8
9-1437381-2
9-1437381-9
1437382-2
Channel Clamps
Miniature (use w/#12 channel)
Universal
11
—
1437381-4
—
11
—
1437381-4
—
11
68
1437381-4
1437382-3
—
68
—
1437382-3
Type of Block
Model
Standard Block
Corrosion Resistant
(nickel plated contacts)
125-BU
Part
Number
2-1437392-3
D125
Specifications
Housing Material
Max. Service Temperature
Flammability
Wire Strip Length (in.)
Torque, in-lbs.
Electrical Characteristics
UL Rating
Wire Range (solid & stranded)
Model
Model
Model
LR25557
E63810
246
Catalog 1308389
Revised 6-07
www.tycoelectronics.com
Dimensions are in millimeters
and inches unless otherwise
specified.
Dimensions are shown for
reference purposes only.
Specifications subject
to change.
USA: 1-800-522-6752
Canada: 1-905-470-4425
Mexico: 01-800-733-8926
C. America: 52-55-1106-0803
South America: 55-11-2103-6000
Hong Kong: 852-2735-1628
Japan: 81-44-844-8013
UK: 8706-080-208
Note: All part numbers
are RoHS Compliant.
BUCHANAN Terminal Blocks
100 Series High Density Miniature Blocks Accessories
Channel Clamps
Screw
Steel
Channel
Marking Accessories
Snap-in
Miniature
for #12
Channel
See-thru
Cover
Ganging
Rod
Miniature
Vinyl
Marking Strips
Elevated
Marking
Strip
Nylon
Holding
Plug
Part Number
9-1437381-5
1437382-3
9-1437381-7
1437381-4
1-1437381-0
1-1437381-1
1-1437381-2
4-1437381-1
1-1437381-3
Catalog Number
61
68
62
11
13
14
15
52-BU
16
Single Tier
Double Tier
Single Tier
Double Tier
Miniature
Single Tier
Miniature
Single Tier
Miniature
Single Tier
Miniature
Single Tier
Double Tier
Miniature
Single Tier
Double Tier
Miniature
Single Tier
—
—
—
—
2 feet
25 feet
18 inches
—
NEMA Terminal
Blocks
Universal
Available For
Single Tier
Double Tier
Standard Length
—
6
Factory Assembled Blocks
Description
Miniature (nylon)
Single Tier (nylon)
Double Tier (nylon)
Miniature (polypropylene)
Direct Mount
125xx
D125xx (nickel)
115xx
D115xx (nickel)
105xx
D105xx (nickel)
P125xx
DP125xx (nickel)
Channel Mount
0125xx
D0125xx (nickel)
0115xx
D0115xx (nickel)
0105xx
D0105xx (nickel)
P0125xx
DP0125xx (nickel)
Note: xx = number of blocks desired. For factory assembled blocks with
removable marking strip, add “-1” to Catalog Number. Minimum order
quantities may apply.
Related Product Data
Wire Pins and Ferrules—Pages
109-111
For more information on AMP Standard
Terminals and Splices or Quick-Connect
FASTON Receptacles and Tabs, request
Catalog 82042.
LR25557
E63810
247
Catalog 1308389
Revised 6-07
www.tycoelectronics.com
Dimensions are in millimeters
and inches unless otherwise
specified.
Dimensions are shown for
reference purposes only.
Specifications subject
to change.
USA: 1-800-522-6752
Canada: 1-905-470-4425
Mexico: 01-800-733-8926
C. America: 52-55-1106-0803
South America: 55-11-2103-6000
Hong Kong: 852-2735-1628
Japan: 81-44-844-8013
UK: 8706-080-208
Note: All part numbers
are RoHS Compliant.
BUCHANAN Terminal Blocks
Miniature Blocks
Miniature
C = .29 [7.37] + (.25 [6.35] X N)
L = .51 [12.95] + (.25 [6.35] X N)
On Miniature Channel:
CCH = 1.00 [25.4] + (.25 [6.35] X A)
LCH = 1.35 [34.29] + (.25 [6.35] X A)
A = N when N is even
A = N + 1 when N is Odd
N = No. of Miniature Sections
Single Tier
C = .35 [8.89] + (.25 [6.35] X N)
L = .50 [12.7] + (.25 [6.35] X N)
On Standard Channel:
CCH = 2.00 [50.8] + (.25 [6.35] X N)
LCH = 2.75 [69.85] + (.25 [6.35] X N)
N = No. of Single Tier Sections
On Miniature Channel:
CCH = 1.00 [25.4] + (.25 [6.35] X A)
LCH = 1.35 [34.29] + (.25 [6.35] X A)
A = N when N is Even
A = N + 1 when N is Odd
N = No. of Single Tier Sections
Double Tier
L = .08 [2.03] + (.24 [6.10] X N)
On Miniature Channel:
CCH = 1.58 [2.03] + (.24 [6.10] X A)
LCH = 2.33 [59.18] + (.24 [6.10] X A)
N = No. of Double Tier Sections
248
Catalog 1308389
Revised 6-07
www.tycoelectronics.com
Dimensions are in millimeters
and inches unless otherwise
specified.
Dimensions are shown for
reference purposes only.
Specifications subject
to change.
USA: 1-800-522-6752
Canada: 1-905-470-4425
Mexico: 01-800-733-8926
C. America: 52-55-1106-0803
South America: 55-11-2103-6000
Hong Kong: 852-2735-1628
Japan: 81-44-844-8013
UK: 8706-080-208
Note: All part numbers
are RoHS Compliant.
BUCHANAN Terminal Blocks
900 Series, Medium Duty
Product Facts
n High
NEMA Terminal
Blocks
circuit density - 183
circuits per 6-foot length, 3/8
inch pitch.
n Choice of five contact styles tubular clamp, tubular
screw, strap screw, quick
connect and tubular screw
quick connect.
n Sections snap-fit with Heavy
Duty, Intermediate Heavy
Duty, and Fuse & Switch
blocks.
n Readily identify circuits mark directly on block
sections or use removable
marking strip. Preprinted
marking strips also
available.
n Rated up to 50 amperes per
circuit.
n Flat base models mount
directly to surfaces or on
miniature channel. Dovetail
base mounts on standard
size channel.
n Packaged for rapid handling
and assembly - 100 per
carton.
n Only one end section needed
per block assembly.
n Fanning strips - interlocking
sectional fanning strips
allow entire circuit groups to
be connected and
disconnected as a single
unit.
n Factory assembled blocks
available, including marking
strips and different contact
sections.
6
NEMA 900 Series is
available in .375” [9.53]
centerline, in direct or
channel mount, tubular or
strap versions, and screw,
clamp or quick connect
configurations. Corrosionresistant versions are also
available.
NEMA 900 Series snap fit
with the Medium Duty 500,
600 and 700 Series, as well
as with the Heavy Duty,
Intermediate Heavy Duty
and Fuse & Switch blocks.
C
US
249
Catalog 1308389
Revised 6-07
www.tycoelectronics.com
Dimensions are in millimeters
and inches unless otherwise
specified.
Dimensions are shown for
reference purposes only.
Specifications subject
to change.
USA: 1-800-522-6752
Canada: 1-905-470-4425
Mexico: 01-800-733-8926
C. America: 52-55-1106-0803
South America: 55-11-2103-6000
Hong Kong: 852-2735-1628
Japan: 81-44-844-8013
UK: 8706-080-208
Note: All part numbers
are RoHS Compliant.
BUCHANAN Terminal Blocks
900 Series, 600V Medium Duty, 0.375” [9.53] Pitch
Characteristics
Strap Screw
Type of Block
Direct Mount (Flat Base)
Standard
Corrosion Resistant (Duramax)
Channel Mount (Dovetail Base)
Standard
(Duramax)
Tubular Screw
Tubular Clamp
Quick Connect
Model
Part
Number
Model
Part
Number
Model
Part
Number
921
D921
1546143-1
1546143-2
924
D924
1546147-1
1546147-2
925
D925
1546234-1
1546234-2
927
0921
D0921
1546144-1
1546144-2
0924
D0924
1546148-1
1546148-2
0925
D0925
1546235-1
1546235-2
0927
Part
Number
Model
1546149-1
—
1546150-1
—
Contact Type
Specifications
Wire Range (AWG)
Solid & Stranded
Wire Strip Length (in.)
Screw Type
Ampacity
End Sections
Direct Mount
Channel Mount
10*, 22-14
22-8
22-8
—
—
6-32
Binding Head
35 A*, 15A
11/32
10-32
Pan Head
50 A
11/32
10-32
Slotted Pan Head
30 A
—
930
0930
1546163-1
1546164-1
930
0930
1546163-1
1546164-1
930
0930
1546163-1
1546164-1
—
20 A
930
0930
1546163-1
1546164-1
*Acceptable for 35A max. factory wiring only when used with 10AWG wire preterminated with suitable ring tongue terminals.
Note: Standard package is 100 pieces for contact, 25 pieces for end section.
Comparison (Type of Block)
Direct Mount
(Flat Base)
Channel Mount
(Dovetail Base)
C
US
250
Catalog 1308389
Revised 6-07
www.tycoelectronics.com
Dimensions are in millimeters
and inches unless otherwise
specified.
Dimensions are shown for
reference purposes only.
Specifications subject
to change.
USA: 1-800-522-6752
Canada: 1-905-470-4425
Mexico: 01-800-733-8926
C. America: 52-55-1106-0803
South America: 55-11-2103-6000
Hong Kong: 852-2735-1628
Japan: 81-44-844-8013
UK: 8706-080-208
Note: All part numbers
are RoHS Compliant.
BUCHANAN Terminal Blocks
900 Series, 600V Medium Duty, 0.375” [9.53] Pitch (Continued)
Independent Testing
Service Listing and
Recognition
Tubular Screw
& Quick Connect
Part
Number
Model
Tubular Clamp
with Blade
1546151-1
929
1546152-1
BP035M 3-1437394-6
Part
Number
Model
—
—
—
0929
Part
Number
Model
Tubular Clamp
with Cantilever
—
—
BP35F
3-1437394-7
—
—
—
18-12
—
—
22-10
11/32
10-32
Phil-slot
30 A
22-10
11/32
10-32
Phil-slot
30 A
20 A
930
0930
1546163-1
1546164-1
0930
—
1546164-1
NEMA Terminal
Blocks
WIRE SIZES, Solid or Stranded
Tubular Screw
1 #18 AWG to 1 #8 AWG,
2 or 3 #12 AWG, 2 to 4 #14 AWG,
2 or 4 #16 AWG, 2 to 5 #18 AWG,
Tubular Clamp
1 #22 AWG to 1 #10 AWG,
2 #12 AWG, 2 or 3 #14 AWG,
2 to 4 #16 AWG, 2 to 5 #18 AWG,
2 to 8 #20 AWG, 2 to 10 #22 AWG,
Strap Clamp
1 #22 AWG to 1 #10 AWG
6
—
—
C
US
251
Catalog 1308389
Revised 6-07
www.tycoelectronics.com
Dimensions are in millimeters
and inches unless otherwise
specified.
Dimensions are shown for
reference purposes only.
Specifications subject
to change.
USA: 1-800-522-6752
Canada: 1-905-470-4425
Mexico: 01-800-733-8926
C. America: 52-55-1106-0803
South America: 55-11-2103-6000
Hong Kong: 852-2735-1628
Japan: 81-44-844-8013
UK: 8706-080-208
Note: All part numbers
are RoHS Compliant.
BUCHANAN Terminal Blocks
ERT Series, Medium Duty Radiation Resistant
Physical Properties
Effect of Radiation on Physical
Properties
The effects of radiation (neutron and
gamma particles) on RYTON R-4
material have been studied. Since
RYTON, as an engineering plastic, may
fill applications in nuclear installations
these effects are important. The test
results show no effects on physical
properties by these relatively high
exposures to gamma and neutron
radiation. There is no indication from
these data of crosslinking or degradation
of the RYTON R-4 material.
Note: Determination of the suitability of
the ERT Series Blocks for particular
applications rests solely with customers.
Description
Strap Screw
Tubular Clamp
Tubular Screw
End Section
Catalog
Number
0721ERT
0725ERT
0724ERT
0730ERT
Part
Number
1437394-9
1-1437394-6
1-1437394-1
2-1437394-0
Housing: RYTON (Polyphenylene Sulfide)
Density
100 lbs./ft.3
Tensile Strength
19,500 psi
Elongation
1.3%
Flexural Modulus
1,700,000 psi
Flexural Strength
29,000 psi
Compressive Strength
21,000 psi
Izod Impact Strength
Unnotched, 1/8” Specimen
8.0 ft. lbs./in.
Notched, 1/8” Specimen
1.4 ft. lbs./in.
Rockwell Hardness
R-123
Water Absorption
0.05%
Heat Distortion Temp. @ 264 psi 500˚F
Specific Heat, 24 hrs. @ 25˚C
0.25 btu/lb./˚F
Thermal Conductivity
2.0 btu-in./h-ft.2 F
Coefficient/Linear Thermal Exp.
2.5 x 10-5 in./in./˚ F
V-0
Flammability, UL 94
Dielectric Strength
350 volts/mil
Dielectric Constant, 25˚C 1 kHz
3.9
1MHz
3.8
Dissipation Factor, 25˚C 1kHz
0.0010
1MHz
0.0013
ASTM Test
D1505-68
D638-72
D638-72
D790-91
D790-91
D695-69
Conditions
Temperature
Radiation
Intensity
In Reactor Core
35˚C
Mainly neutrons
1010 ergs g-1 (C)
Calorimeter and
activation detectors
In Water Pool
30˚C
Mainly gamma
109 ergs g-1 (C)
Flexural Strength
psi
28,700
Modulus of
Elasticity, psi
1,900,000
29,000
28,900
1,910,000
1,880,000
29,700
30,200
28,500
1,810,000
1,840,000
1,820,000
Used Particle Detectors
Radiation Dose
0
A. Neutron
5 x 10 rad
1 x 10 rad
B. Gamma
5 x 10 rad
1 x 10 rad
5 x 10 rad
D785-65
D570-63
D648-72
D149-64
D150-70
D150-70
Ionization chamber
RYTON is a registered trademark of Chevron Phillips Chemical Company.
LR25557
E63810
252
Catalog 1308389
Revised 6-07
www.tycoelectronics.com
Dimensions are in millimeters
and inches unless otherwise
specified.
Dimensions are shown for
reference purposes only.
Specifications subject
to change.
USA: 1-800-522-6752
Canada: 1-905-470-4425
Mexico: 01-800-733-8926
C. America: 52-55-1106-0803
South America: 55-11-2103-6000
Hong Kong: 852-2735-1628
Japan: 81-44-844-8013
UK: 8706-080-208
Note: All part numbers
are RoHS Compliant.
BUCHANAN Terminal Blocks
Medium Duty Accessories
Mounting Channel
Part
Number
Catalog
Number
1437381-8
12
Pre-punched
Aluminum
Channel
Break
Away
Steel
Steel
Channel
Miniature
Part
Catalog
Part
Catalog
Number Number
Number Number
60
9-1437381-1
9-1437381-2 60-B-36
9-1437381-8 63-BU
Part
Catalog
Number
Number
64
9-1437381-9
1437382-2
67
Standard Length
NEMA Terminal
Blocks
6 feet
3 feet
3 feet
6 feet
3 feet
3 feet
Channel Clamps
Screw
Channel
Clamps
Part Number
9-1437381-5
Universal
Clamps
Snap-In
Clamps
Miniature
for #12
Channel
6
See-thru
Cover
Ganging
Rod
Polarizing
Plug
1437382-3
9-1437381-7
1437381-4
1-1437382-2
3-1437381-9
2-1437382-5
Catalog Number
61
68
62
11
71
30-BU
84
Standard Length
—
—
—
—
—
2 feet
—
Jumpers
Jumper
for tubular
Contacts
Snap-apart
for Tubular
Contacts
1437382-6
1-1437382-3
70
73
Part Number
Catalog Number
Related Product Data
Wire Pins and Ferrules—Pages 109-111
For more information on AMP Standard Terminals and
Splices or Quick-Connect FASTON Receptacles and
Tabs, request Catalog 82042.
253
Catalog 1308389
Revised 6-07
www.tycoelectronics.com
Dimensions are in millimeters
and inches unless otherwise
specified.
Dimensions are shown for
reference purposes only.
Specifications subject
to change.
USA: 1-800-522-6752
Canada: 1-905-470-4425
Mexico: 01-800-733-8926
C. America: 52-55-1106-0803
South America: 55-11-2103-6000
Hong Kong: 852-2735-1628
Japan: 81-44-844-8013
UK: 8706-080-208
Note: All part numbers
are RoHS Compliant.
BUCHANAN Terminal Blocks
Medium Duty Accessories (Continued)
Marking Accessories
Plastic
Cloth
Tape
Vinyl
Marking
Strips
Elevated
Marking
Strip
Nylon
Holding
Plug
Part Number
1437382-1
8-1437381-0
6-1437381-3
4-1437391-1
4-1437393-0
Catalog Number
66
55-BU
50-BU
52-BU
65-BU
Standard Length
—
50 feet
25 feet
18 inches
—
Plastic
Cloth
Tape
Sectional Fanning Strips
Strap Screw
Tubular Screw
Description
Tubular Screw
Strap Screw
Molding Only, no contact
Standard
Package
50
50
50
Part
No.
1-1437382-4
1-1437382-7
4-1437393-1
Catalog
No.
74
78-TB
74100
254
Catalog 1308389
Revised 6-07
www.tycoelectronics.com
Dimensions are in millimeters
and inches unless otherwise
specified.
Dimensions are shown for
reference purposes only.
Specifications subject
to change.
USA: 1-800-522-6752
Canada: 1-905-470-4425
Mexico: 01-800-733-8926
C. America: 52-55-1106-0803
South America: 55-11-2103-6000
Hong Kong: 852-2735-1628
Japan: 81-44-844-8013
UK: 8706-080-208
Note: All part numbers
are RoHS Compliant.
BUCHANAN Terminal Blocks
Medium Duty Channel Mount
Dovetail Base Mounted On
Standard #60 Channel
NEMA Terminal
Blocks
6
Flat Base Mounted On
Miniature #12 Channel
255
Catalog 1308389
Revised 6-07
www.tycoelectronics.com
Dimensions are in millimeters
and inches unless otherwise
specified.
Dimensions are shown for
reference purposes only.
Specifications subject
to change.
USA: 1-800-522-6752
Canada: 1-905-470-4425
Mexico: 01-800-733-8926
C. America: 52-55-1106-0803
South America: 55-11-2103-6000
Hong Kong: 852-2735-1628
Japan: 81-44-844-8013
UK: 8706-080-208
Note: All part numbers
are RoHS Compliant.
BUCHANAN Terminal Blocks
900 Series, Flat Base
-BU
256
Catalog 1308389
Revised 6-07
www.tycoelectronics.com
Dimensions are in millimeters
and inches unless otherwise
specified.
Dimensions are shown for
reference purposes only.
Specifications subject
to change.
USA: 1-800-522-6752
Canada: 1-905-470-4425
Mexico: 01-800-733-8926
C. America: 52-55-1106-0803
South America: 55-11-2103-6000
Hong Kong: 852-2735-1628
Japan: 81-44-844-8013
UK: 8706-080-208
Note: All part numbers
are RoHS Compliant.
BUCHANAN Terminal Blocks
BP Series, Plug-in Blocks
Dovetail Base Mounted On
Standard #60 Channel
NEMA Terminal
Blocks
6
257
Catalog 1308389
Revised 6-07
www.tycoelectronics.com
Dimensions are in millimeters
and inches unless otherwise
specified.
Dimensions are shown for
reference purposes only.
Specifications subject
to change.
USA: 1-800-522-6752
Canada: 1-905-470-4425
Mexico: 01-800-733-8926
C. America: 52-55-1106-0803
South America: 55-11-2103-6000
Hong Kong: 852-2735-1628
Japan: 81-44-844-8013
UK: 8706-080-208
Note: All part numbers
are RoHS Compliant.
BUCHANAN Terminal Blocks
Engineering Notes
258
Catalog 1308389
Revised 6-07
www.tycoelectronics.com
Dimensions are in millimeters
and inches unless otherwise
specified.
Dimensions are shown for
reference purposes only.
Specifications subject
to change.
USA: 1-800-522-6752
Canada: 1-905-470-4425
Mexico: 01-800-733-8926
C. America: 52-55-1106-0803
South America: 55-11-2103-6000
Hong Kong: 852-2735-1628
Japan: 81-44-844-8013
UK: 8706-080-208
Note: All part numbers
are RoHS Compliant.
BUCHANAN Terminal Blocks
200 Series Heavy Duty
Product Facts
n Choose
NEMA Terminal
Blocks
from 5 different
contact styles.
n 600 volt UL and NEMA
rating.
n Conservatively rated from 50
to 90 amperes per circuit,
depending on which contact
style is selected.
n Choose any of three
mounting methods — twoway flat base models surface
mount directly to the panel
or snap-on miniature
channel. Dovetail base
models mount on standard
channel.
n Packaged for rapid handling
and assembly — snap-fit
sections are packed 10 per
carton.
n Only one end section needed
per block assembly.
n Readily identify circuits —
mark directly on block
sections or use removable
marking strip. Pre-printed
strips are also available.
6
This compact, heavy duty
block line accepts single or
combination wires up to #4
AWG, solid or stranded.
The compact design allows
at least 138 circuits per 6foot length to be mounted.
The pitch of this 600 volt
block is 0.50" [12.70]
(centerline spacing).
LR25557
E63810
259
Catalog 1308389
Revised 6-07
www.tycoelectronics.com
Dimensions are in millimeters
and inches unless otherwise
specified.
Dimensions are shown for
reference purposes only.
Specifications subject
to change.
USA: 1-800-522-6752
Canada: 1-905-470-4425
Mexico: 01-800-733-8926
C. America: 52-55-1106-0803
South America: 55-11-2103-6000
Hong Kong: 852-2735-1628
Japan: 81-44-844-8013
UK: 8706-080-208
Note: All part numbers
are RoHS Compliant.
BUCHANAN Terminal Blocks
200 Series, Heavy Duty, 600V, 0.50” [1.27] Pitch
Strap Screw
Characteristics
Type of Block
Direct Mount (Flat Base)
Nylon, Unpainted
Polypropylene
Channel Mount (Dovetail Base)
Nylon, Painted
Polypropylene
Strap Clamp
Tubular Screw
Tubular Clamp
Model
Part
Number
Model
Part
Number
Model
Part
Number
Model
Part
Number
241
P241
3-1437390-9
6-1437390-5
248
P248
4-1437390-2
6-1437390-8
242
P242
4-1437390-0
6-1437390-6
243
P243
4-1437390-1
6-1437390-7
0241 1-1437390-6
P0241 5-1437390-9
0248
P0248
2-1437390-4
6-1437390-3
0242
P0242
2-1437390-0
6-1437390-0
0243
2-1437390-1
P0243-BU 6-1437390-2
Contact Type
Specifications
Wire Range (AWG)
Solid & Stranded
Wire Strip Length (in.)
Screw Type
Ampacity
End Sections
Direct Mount, Nylon
Direct Mount, Polypropylene
Channel Mount, Nylon
Channel Mount, Polypropylene
22-10
18-8
18-4
18-6
—
10-32
binding head
35 A
1/2
8-32
pan head
50 A
1/2
1/4-28
set screw
85 A
1/2
1/4-28
set screw
65 A
250
P250
0250
P0250
4-1437390-3
6-1437390-6
2-1437390-5
6-1437390-4
250
P250
0250
P0250
4-1437390-3
6-1437390-6
2-1437390-5
6-1437390-4
250
P250
0250
P0250
4-1437390-3
6-1437390-6
2-1437390-5
6-1437390-4
250
P250
0250
P0250
4-1437390-3
6-1437390-6
2-1437390-5
6-1437390-4
Comparison (Type of Block)
Notes:
For factory assembled blocks, suffix Catalog Number with number of blocks
desired. See page 264-266 for dimensions and other details.
(Maximum number of flat base preassembled sections is 12).
Example: Ten tubular clamp, dovetail based sections, preassembled on channel
= 024310
Example: Twelve polypropylene strap clamp flat base sections = P24812
For unpainted factory assembled blocks supplied with a removable marking strip
add — 1 to Catalog Number.
For blocks with two or more different contact sections, imprinted marking strips,
or special features, consult Technical Support.
Direct Mount
(Flat Base)
Channel Mount
(Dovetail Base)
LR25557
E63810
260
Catalog 1308389
Revised 6-07
www.tycoelectronics.com
Dimensions are in millimeters
and inches unless otherwise
specified.
Dimensions are shown for
reference purposes only.
Specifications subject
to change.
USA: 1-800-522-6752
Canada: 1-905-470-4425
Mexico: 01-800-733-8926
C. America: 52-55-1106-0803
South America: 55-11-2103-6000
Hong Kong: 852-2735-1628
Japan: 81-44-844-8013
UK: 8706-080-208
Note: All part numbers
are RoHS Compliant.
BUCHANAN Terminal Blocks
200 Series, Heavy Duty, 600V, 0.50” [1.27] Pitch (Continued)
Corrosion Resistant
Strap Screw
Corrosion Resistant
Tubular Screw
Part
Number
Model
Part
Number
D241
DP241
4-1437389-0
1776721-1
D242
DP242
4-1437389-1
1776723-1
D0241
DP0241
1776722-1
6-1437389-0
D0242
DP0242
1776724-1
1776724-2
22-10
18-4
—
10-32 Nickel plated
binding head
35 A
1/2
1/4-28 Nickel plated
set screw
85 A
250
P250
0250
P0250
4-1437390-3
6-1437390-6
2-1437390-5
6-1437390-4
250
P250
0250
P0250
NEMA Terminal
Blocks
Model
6
4-1437390-3
6-1437390-6
2-1437390-5
6-1437390-4
LR25557
E63810
261
Catalog 1308389
Revised 6-07
www.tycoelectronics.com
Dimensions are in millimeters
and inches unless otherwise
specified.
Dimensions are shown for
reference purposes only.
Specifications subject
to change.
USA: 1-800-522-6752
Canada: 1-905-470-4425
Mexico: 01-800-733-8926
C. America: 52-55-1106-0803
South America: 55-11-2103-6000
Hong Kong: 852-2735-1628
Japan: 81-44-844-8013
UK: 8706-080-208
Note: All part numbers
are RoHS Compliant.
BUCHANAN Terminal Blocks
200 Series Heavy Duty Accessories
Mounting Channel
Part
Number
Catalog
Number
1437381-8
12
Pre-punched
Aluminum
Channel
Break
Away
Steel
Steel
Channel
Miniature
Part
Catalog
Part
Catalog
Part
Catalog
Number Number Number Number Number Number
9-1437381-1
60
64
9-1437381-2 60-B-36 9-1437381-9
1437382-2
67
9-1437381-8 63-BU
Standard Length
6 feet
3 feet
3 feet
6 feet
3 feet
3 feet
Channel Clamps
Screw
Channel
Clamps
Part Number
9-1437381-5
Universal
Clamps
Snap-In
Clamps
Miniature
for #12
Channel
See-thru
Cover
Ganging
Rod
1437382-3
9-1437381-7
1437381-4
1-1437381-6
3-1437381-9
Catalog Number
61
68
62
11
23-BU
30-BU
Standard Length
—
—
—
—
—
2 feet
Jumpers
Marking Accessories
Plastic
Cloth
Tape
Plastic
Cloth
Tape
Vinyl
Marking
Strips
Elevated
Marking
Strip
Nylon
Holding
Plug
Jumper
for Tubular
Contacts
Snap-Apart
for Tubular
Contacts
6-1437381-3
4-1437391-1
4-1437393-0
2-1437393-4
1-1437382-5
55-BU
50-BU
52-BU
65-BU
42-BU
75
Standard Length
50 feet
—
25 feet
18 inches
—
—
12 ckt
Part Number
8-1437381-1 8-1437381-0
Catalog Number
56
Related Product Data
Wire Pins and Ferrules—Pages 109-111
For more information on AMP Standard Terminals and
Splices or Quick-Connect FASTON Receptacles and
Tabs, request Catalog 82042.
LR25557
E63810
262
Catalog 1308389
Revised 6-07
www.tycoelectronics.com
Dimensions are in millimeters
and inches unless otherwise
specified.
Dimensions are shown for
reference purposes only.
Specifications subject
to change.
USA: 1-800-522-6752
Canada: 1-905-470-4425
Mexico: 01-800-733-8926
C. America: 52-55-1106-0803
South America: 55-11-2103-6000
Hong Kong: 852-2735-1628
Japan: 81-44-844-8013
UK: 8706-080-208
Note: All part numbers
are RoHS Compliant.
BUCHANAN Terminal Blocks
200 Series Heavy Duty Specifications
Material & Finish
Voltage Rating: Blocks meet 600 volt
creepage and clearance requirements of
NEMA, UL and CSA for general
industrial control equipment and
panelboards. Withstand voltages greatly
in excess of IEEE switchgear standards
for 750 volts.
Ampacity: For a single #4 AWG wire
the maximum amperage recommended
is 85 amps.
Standard Contacts:
Environmental Contacts
(for highly corrosive
atmospheres)
Tubular Screw: Electrical grade
copper tube with nickel plating. Nickel
plated brass screws.
Strap Screw: Nickel plated brass
straps and screws. Nickel plating
exceeds specification QQ-N-290 Class I,
Type VII.
Nylon Housing:
Material—Nylon; Unfilled Type 6/6
Max. Continuous Temperature—
125°C [257°F]
Breakdown Voltage (AC, 60 Hz)—
Contact-to-Contact: 7000V
Contact-to-Ground: 7800V
Dielectric Strength (RH 40% at
Sea Level)—470-385 Volts/mil
thickness Per ASTM D149
UL High Voltage Arc Tracking
(inches/min.)—.01-.35
Water Absorption (24 hrs. % wt.
gain)—1.5%
Flammability—UL94V-2
Chemical Resistance—Resistant to
aromatic hydrocarbons, strong alkalies
Per ASTM D543
Radiation Resistance (ergs g-1
(C)—8 x 107
Color—Translucent White
WIRE SIZES, Solid or Stranded
Tubular Screw
1 #4 AWG, 1 #6 AWG,
1 or 2 #8 AWG, 1 to 4 #10 AWG,
1 or 5 #12 AWG, 1 to 4 #14 AWG,
1 or 6 #16 AWG, 1 to 8 #18 AWG,
Tubular Clamp
1 #6 AWG, 1 or 2 #8 AWG,
1 to 3 #10 AWG, 1 to 4 #12 AWG,
1 or 4 #14 AWG, 1 to 6 #16 AWG,
1 or 8 #18 AWG
Strap Clamp
1 #18 to 1 #8 AWG
NEMA Terminal
Blocks
Material: Electrical grade copper or
copper alloy conductor. Steel Screws
plated to resist corrosion in most
industrial applications
AL-CU Tubular Screw: Aluminum
compatibility with aluminum or copper
conductors. AL-CU is tin-plated brass.
Independent Testing
Service Listing and
Recognition
Polypropylene Housing:
Material—Polypropylene; Filled selfextinguishing
Max. Continuous Temperature—
105°C (221°F)
Breakdown Voltage (AC, 60Hz)—
Contact-to-Ground: 7800V
Contact-to-Contact: 7000V
Dielectric Strength (RH 40% at
Sea Level)—500 Volts/mil thickness
Per ASTM D149
UL High Voltage Arc Tracking
(inches/min.)—Did not Track
Water Absorption (24 hrs. % wt.
gain)—0.02% Per ASTM D570
Flammability—UL94V-0
Chemical Resistance—Resistant to
most acids, alkalines, and saline
solutions. Also resistant to higher
aliphatic solvents and polar substances
per ASTM D543
Radiation Resistance (ergs g-1
(C)—No data Available
Color—Opaque White
6
LR25557
E63810
263
Catalog 1308389
Revised 6-07
www.tycoelectronics.com
Dimensions are in millimeters
and inches unless otherwise
specified.
Dimensions are shown for
reference purposes only.
Specifications subject
to change.
USA: 1-800-522-6752
Canada: 1-905-470-4425
Mexico: 01-800-733-8926
C. America: 52-55-1106-0803
South America: 55-11-2103-6000
Hong Kong: 852-2735-1628
Japan: 81-44-844-8013
UK: 8706-080-208
Note: All part numbers
are RoHS Compliant.
BUCHANAN Terminal Blocks
200 Series, 600 Volt, Direct Mount
Flat Base
264
Catalog 1308389
Revised 6-07
www.tycoelectronics.com
Dimensions are in millimeters
and inches unless otherwise
specified.
Dimensions are shown for
reference purposes only.
Specifications subject
to change.
USA: 1-800-522-6752
Canada: 1-905-470-4425
Mexico: 01-800-733-8926
C. America: 52-55-1106-0803
South America: 55-11-2103-6000
Hong Kong: 852-2735-1628
Japan: 81-44-844-8013
UK: 8706-080-208
Note: All part numbers
are RoHS Compliant.
BUCHANAN Terminal Blocks
200 Series, 600 Volt, Channel Mount
Flat Base Mounted On #12
Miniature Channel
NEMA Terminal
Blocks
6
265
Catalog 1308389
Revised 6-07
www.tycoelectronics.com
Dimensions are in millimeters
and inches unless otherwise
specified.
Dimensions are shown for
reference purposes only.
Specifications subject
to change.
USA: 1-800-522-6752
Canada: 1-905-470-4425
Mexico: 01-800-733-8926
C. America: 52-55-1106-0803
South America: 55-11-2103-6000
Hong Kong: 852-2735-1628
Japan: 81-44-844-8013
UK: 8706-080-208
Note: All part numbers
are RoHS Compliant.
BUCHANAN Terminal Blocks
200 Series, 600 Volt, Channel Mount (Standard)
Dovetail Base Mounted On
Standard #60 Channel
266
Catalog 1308389
Revised 6-07
www.tycoelectronics.com
Dimensions are in millimeters
and inches unless otherwise
specified.
Dimensions are shown for
reference purposes only.
Specifications subject
to change.
USA: 1-800-522-6752
Canada: 1-905-470-4425
Mexico: 01-800-733-8926
C. America: 52-55-1106-0803
South America: 55-11-2103-6000
Hong Kong: 852-2735-1628
Japan: 81-44-844-8013
UK: 8706-080-208
Note: All part numbers
are RoHS Compliant.
BUCHANAN Terminal Blocks
200 Series, Heavy Duty Phenolic Blocks
Product Facts
n Sturdy
NEMA Terminal
Blocks
Heavy Duty block
accepts single or
combinations of wire up to
#4 AWG solid or stranded —
at least 122 circuits per 6foot length, 9/16" center-tocenter spacing.
n Choose from four different
contact styles conservatively
rated up to 90 amperes.
n 600 volt UL and NEMA
rating.
n Surface mounted flat base
and channel mounted
dovetail base models
available.
n Only one end section needed
per block assembly.
n Interlocking sectional
fanning strips allow entire
circuit groups to be
connected and disconnected
as a single unit.
n Readily identify circuits —
available with painted
marking surface or use
removable marking strip.
Pre-printed strips are also
available.
n Factory assembled blocks
available.
n Heavy Duty Phenolic Block
Sections Snap-fit with 300 &
600 volt, medium duty
phenolic, heavy duty nylon
and polypropylene, and Fuse
and Switch blocks.
This family of phenolic
heavy duty blocks is ideal
for high temperature, high
current applications. The
rugged material withstands
temperatures up to 302°F
[150°C].
6
LR25557
E63810
267
Catalog 1308389
Revised 6-07
www.tycoelectronics.com
Dimensions are in millimeters
and inches unless otherwise
specified.
Dimensions are shown for
reference purposes only.
Specifications subject
to change.
USA: 1-800-522-6752
Canada: 1-905-470-4425
Mexico: 01-800-733-8926
C. America: 52-55-1106-0803
South America: 55-11-2103-6000
Hong Kong: 852-2735-1628
Japan: 81-44-844-8013
UK: 8706-080-208
Note: All part numbers
are RoHS Compliant.
BUCHANAN Terminal Blocks
200 Series, Heavy Duty Phenolic, 600 V, 0.56” [14.24] Pitch
Strap Screw
Characteristics
Type of Block
Direct Mount (Flat Base)
Painted
Unpainted
Channel Mount (Dovetail Base)
Painted
Unpainted
Strap Clamp
Tubular Screw
Tubular Clamp
Model
Part
Number
Model
Part
Number
Model
Part
Number
Model
Part
Number
221
211
3-1437390-1
2-1437390-7
228-BU
218
1-1437381-5
3-1437390-0
222-BU
212
3-1437390-3
2-1437390-8
223-BU
213
3-1437390-6
2-1437390-9
0221
0211
1437390-8
1437390-1
0228
0218
1-1437390-3
1437390-7
0222
0212
1437390-9
1437390-3
0223
0213
1-1437390-2
1437390-5
Contact Type
Specifications
Wire Range (AWG)
Solid & Stranded
Wire Strip Length (in.)
Screw Type
Ampacity
End Sections
Direct Mount
Channel Mount
22-10
18-8
18-4
18-6
—
10-32
binding head
35 A
1/2
8-32
pan head w/clamp
50 A
1/2
1/4-28
set screw
85 A
1/2
1/4-28
set screw
65 A
230-BU 1-1437381-7
0230 1-1437390-4
230-BU
0230
1-1437381-7
1-1437390-4
Notes:
For factory assembled blocks, suffix Catalog Number with number of blocks
desired. See page 272 for dimensions and other details. (Maximum number
of flat base preassembled sections is 12).
Example: Twenty dovetail based, tubular clamp blocks, preassembled on
channel = 021320 (plain marking area)
230-BU
0230
1-1437381-7
1-1437390-4
230-BU
0230
1-1437381-7
1-1437390-4
Comparison (Type of Block)
Example: Twelve preassembled flat base, strap screw blocks = 22112
(painted marking area)
For factory assembled blocks supplied with a removable marking strip add
— 1 to Catalog Number.
For blocks with two or more different contact sections, imprinted marking
strips, or special features, consult
Technical Support.
Environmental contacts for highly corrosive atmospheres are available with
nickel plating on non-ferrous hardware. To order, prefix Catalog # with “D”.
Direct Mount
(Flat Base)
Channel Mount
(Dovetail Base)
LR25557
E63810
268
Catalog 1308389
Revised 6-07
www.tycoelectronics.com
Dimensions are in millimeters
and inches unless otherwise
specified.
Dimensions are shown for
reference purposes only.
Specifications subject
to change.
USA: 1-800-522-6752
Canada: 1-905-470-4425
Mexico: 01-800-733-8926
C. America: 52-55-1106-0803
South America: 55-11-2103-6000
Hong Kong: 852-2735-1628
Japan: 81-44-844-8013
UK: 8706-080-208
Note: All part numbers
are RoHS Compliant.
BUCHANAN Terminal Blocks
200 Series, Heavy Duty Phenolic, 600 V, 0.56” [14.24] Pitch (Continued)
Corrosion Resistant
Strap Screw
Corrosion Resistant
Tubular Screw
Corrosion Resistant
Tubular Clamp
Part
Number
Model
Part
Number
Model
Part
Number
D221
D211
3-1437389-6
3-1437389-4
D222
D212
3-1437389-8
3-1437389-5
D223
D213
3-1437389-9
4-1437390-6
D0221
D0211
1437389-7
1437389-2
D0222
D0212
1437389-8
1437389-4
D0223
D0213
1437389-9
1437389-6
NEMA Terminal
Blocks
Model
Contact Type
Specifications
22-10
18-4
22-10
—
10-32 Nickel plated
binding head
35 A
1/2
1/4-28 Nickel plated
set screw
85 A
1/2
1/4-28 Nickel plated
set screw
65 A
230-BU
0230
230-BU
0230
230-BU
0230
1-1437381-7
1-1437390-4
1-1437381-7
1-1437390-4
6
1-1437381-7
1-1437390-4
Sectional Fanning Strips
Description
Tubular Screw
Strap Screw
Molding Only, no contact
Part
No.
1-1437381-8
1-1437381-9
1447889-1
Catalog
No.
24
27
2400
Note:
For factory assembled fanning strips, suffix Catalog Number with number
desired.
Example: Ten factory assembled sections of #24 = 2410
LR25557
E63810
269
Catalog 1308389
Revised 6-07
www.tycoelectronics.com
Dimensions are in millimeters
and inches unless otherwise
specified.
Dimensions are shown for
reference purposes only.
Specifications subject
to change.
USA: 1-800-522-6752
Canada: 1-905-470-4425
Mexico: 01-800-733-8926
C. America: 52-55-1106-0803
South America: 55-11-2103-6000
Hong Kong: 852-2735-1628
Japan: 81-44-844-8013
UK: 8706-080-208
Note: All part numbers
are RoHS Compliant.
BUCHANAN Terminal Blocks
200 Series, Heavy Duty Phenolic Accessories
Channel Clamps
Mounting Channel
Break
Away
Steel
Pre-punched
Aluminum
Channel
Screw
Channel
Clamps
Universal
Clamps
Snap-In
Clamps
See-thru
Cover
Ganging
Rod
9-1437381-2
9-1437381-9
1437382-2
9-1437381-5
1437382-3
9-1437381-7
1-1437382-2
3-1437381-9
60-B-36
64
67
61
68
62
23-BU
30-BU
3 feet
6 feet
3 feet
—
—
—
—
2 feet
Steel
Channel
Part Number
9-1437381-1
9-1437381-8
Catalog Number
60
63-BU
Standard Length
6 feet
3 feet
Marking Accessories
Plastic
Cloth
Tape
Plastic
Cloth
Tape
Part Number
8-1437381-1 8-1437381-0
Jumpers
Vinyl
Marking
Strips
Elevated
Marking
Strip
Nylon
Holding
Plug
Jumper
for Tubular
Contacts
Jumper
for Strap
Screw
6-1437381-3
4-1437391-1
4-1437393-0
2-1437393-3
5-1437381-5
Catalog Number
55-BU
56
50-BU
52-BU
65-BU
41-BU
43
Standard Length
10 sheets
50 feet
25 feet
18 inches
—
—
—
Related Product Data
Wire Pins and Ferrules—Pages 109-111
For more information on AMP Standard Terminals and
Splices or Quick-Connect FASTON Receptacles and
Tabs, request Catalog 82042.
270
Catalog 1308389
Revised 6-07
www.tycoelectronics.com
Dimensions are in millimeters
and inches unless otherwise
specified.
Dimensions are shown for
reference purposes only.
Specifications subject
to change.
USA: 1-800-522-6752
Canada: 1-905-470-4425
Mexico: 01-800-733-8926
C. America: 52-55-1106-0803
South America: 55-11-2103-6000
Hong Kong: 852-2735-1628
Japan: 81-44-844-8013
UK: 8706-080-208
Note: All part numbers
are RoHS Compliant.
BUCHANAN Terminal Blocks
200 Series, Heavy Duty Phenolic Specifications
Nylon Housing
Standard Contacts
Material—Phenolic, Filled Flame
Retardant
Max. Continuous Temperature—
150°C, [302°F]
Breakdown Voltage—
Contact-to-Contact: 7800V
Contact-to-Ground: 9400V
Dielectric Strength (RH 40% at
Sea Level)—300 Volts/mil thickness
per ASTM #D149
UL High Voltage Arc Tracking
(Inches/min.)—.49-.58 [12.4514.73]
Water Absorption (24 hrs. % wt.
gain)—0.45% per ASTM D570
Flammability—UL94V-1
Chemical Resistance—Resistant
to acids, alkalies, and aliphatic
hydrocarbons and ketones, per
ASTM D543.
Radiation Resistance (ergs g-1
(C)—2.7 x 108 min.
Color—Black
Material: Electrical grade copper or
copper alloy conductor. Steel Screws
plated to resist corrosion in most
industrial applications.
Environmental Contacts
(for highly corrosive
atmospheres)
Tubular Screw: - Electrical grade
copper tube with nickel plating.
Nickel plated brass screws.
Strap Screw: - Nickel plated brass
straps and screws
Nickel plating exceeds specification
QQ-N-290 Class I, Type VII.
Wire Range: Strap Screw: #22-10
AWG max., solid or stranded with crimp
terminals
Strap Clamp: #18-8 AWG, solid or
stranded
Tubular Screw: #18-4 AWG, solid or
stranded
Tubular Clamp: #18-6 AWG, solid or
stranded
Wire Strip Length: Strap Screw: As
needed for lugging
Strap Clamp: 1/2 in. [12.7]
Tubular Screw: 1/2 in. [12.7]
Tubular Clamp: 1/2 in. [12.7]
Screw Type: Strap Screw: 10-32
slotted binding head
Strap Clamp: 8-32 pan head w/ clamp
Tubular Screw: 1/4-28 slotted
headless
Tubular Clamp: 1/4-28 slotted
headless
Strap Screw: Maximum width of lugs:
11/32 in. [8.73]
NEMA Terminal
Blocks
Material & Finish
6
Independent Testing Service
Listing and Recognition
WIRE SIZES, Solid or
Stranded Tublar Screw
Tubular Screw
1 #4 AWG, 1 #6 AWG,
1 or 2 #8 AWG, 1 to 4 #10 AWG,
1 or 5 #12 AWG, 1 to 6 #14 AWG,
1 or 6 #16 AWG, 1 to 8 #18 AWG,
Tubular Clamp
1 #6 AWG, 1 or 2 #8 AWG,
1 to 3 #10 AWG, 1 to 4 #12 AWG,
1 or 4 #14 AWG, 1 to 6 #16 AWG,
1 or 8 #18 AWG
Strap Clamp
1 #18 to 1 #8 AWG
LR25557
E63810
271
Catalog 1308389
Revised 6-07
www.tycoelectronics.com
Dimensions are in millimeters
and inches unless otherwise
specified.
Dimensions are shown for
reference purposes only.
Specifications subject
to change.
USA: 1-800-522-6752
Canada: 1-905-470-4425
Mexico: 01-800-733-8926
C. America: 52-55-1106-0803
South America: 55-11-2103-6000
Hong Kong: 852-2735-1628
Japan: 81-44-844-8013
UK: 8706-080-208
Note: All part numbers
are RoHS Compliant.
BUCHANAN Terminal Blocks
200 Series, Heavy Duty Phenolic
Flat Base
Dovetail Base Mounted
On Standard #60 Channel
Sectional Fanning Strips
272
Catalog 1308389
Revised 6-07
www.tycoelectronics.com
Dimensions are in millimeters
and inches unless otherwise
specified.
Dimensions are shown for
reference purposes only.
Specifications subject
to change.
USA: 1-800-522-6752
Canada: 1-905-470-4425
Mexico: 01-800-733-8926
C. America: 52-55-1106-0803
South America: 55-11-2103-6000
Hong Kong: 852-2735-1628
Japan: 81-44-844-8013
UK: 8706-080-208
Note: All part numbers
are RoHS Compliant.
BUCHANAN Terminal Blocks
800 Series, Intermediate Heavy Duty
Product Facts
n An
NEMA Terminal
Blocks
exceptionally compact
block that accepts single or
combinations of AWG wire
sizes as large as #1/0 — at
least 92 circuits per 6-foot
length, 3/4 inch center-tocenter spacing.
n Tubular screw contact style
accepts AWG wire sizes from
#12 thru #1/0, solid or
stranded.
n Same block mounts on
surface or channel — twoway mounting base fits
standard channel or mounts
directly to flat surfaces.
n Packaged for rapid handling
and assembly — snap-fit
sections packaged 10 per
carton.
n Contacts conservatively
rated at 155 amperes per
circuit when used with
copper wire.
n Only one end section needed
per block assembly.
n Readily identify circuits —
blocks available with painted
marking surface or use
removable vinyl marking
strip. Preprinted marking
strips are also available.
n Factory assembled blocks
available.
n Nylon housing material for
the most rugged
applications.
n Allen head screw for
aluminum wire — screw tip
design helps protect
aluminum wire from
overtightening. Slotted
screw head for copper wire.
n Intermediate Heavy Duty
blocks snap-fit with 300 &
600V, Medium Duty
phenolic, Heavy Duty nylon,
polypropylene and phenolic
and Fuse and Switch blocks.
6
This line of 600 volt blocks
is rated up to 150 A and is
available in a standard
version and a corrosion
resistant version.
LR25557
E63810
273
Catalog 1308389
Revised 6-07
www.tycoelectronics.com
Dimensions are in millimeters
and inches unless otherwise
specified.
Dimensions are shown for
reference purposes only.
Specifications subject
to change.
USA: 1-800-522-6752
Canada: 1-905-470-4425
Mexico: 01-800-733-8926
C. America: 52-55-1106-0803
South America: 55-11-2103-6000
Hong Kong: 852-2735-1628
Japan: 81-44-844-8013
UK: 8706-080-208
Note: All part numbers
are RoHS Compliant.
BUCHANAN Terminal Blocks
800 Series, Intermediate Heavy Duty, 600 V, 0.75” Pitch
Material & Finish
Housing Material—Polyamide type
6/6, unfilled
Max Continuous Temp.—125°C
[257°F]
Water Absorption (24hrs. % wt.
gain)—1.5%
Flammability—UL94V-2
Chemical Resistance—Resistant to
aromatic hydrocarbons, strong alkalies
Radiation Resistance (ergs g-1
(C)—8 x 107
Color—Translucent white
Same part used for both panel and
channel mounting.
Description
Tubular Screw, Unpainted
Tubular Screw, Painted
Corrosion Resistant, Unpainted
Corrosion Resistant, Painted
End Section
Electrical Properties
Voltage Rating—Blocks meet 600V
clearance and creepage requirements of
NEMA, UL, and CSA standards for
general industrial control equipment and
panelboards. Withstand voltages in
excess of IEEE switchgear standards for
750V.
Breakdown Voltage, AC, 60Hz—
Contact-to-Contact: 8,800V
Contact-to-Ground: 9000V
Dielectric Strength — RH 40% @
Sea Level—470-385 Volts/mil
thickness per ASTM D149
Operating Voltage—Blocks meet
600V creepage and clearance
requirements; withstand voltage greatly
exceeds standards for 750V
UL High Voltage Arc Tracking
(in./min.)—.01-.35 [.25-8.89]
Part
No.
1437395-2
1437395-3
5-1437389-8
5-1437389-9
1-1437395-4
Catalog
No.
814
824-BU
D814-BU
D824
830-BU
Notes:
For factory assembled blocks on channel, prefix Catalog # with “0” and suffix
with number of blocks desired. Without channel (maximum of 6 sections)
delete “0”. See page 275 for dimensions and other details.
Example: Ten tubular screw sections preassembled on channel = 082410
For unpainted factory assembled blocks supplied with a removable marking
strip add -1 to Catalog Number.
For blocks with two or more different contact sections, imprinted marking
strips or special features; consult Technical Support.
Contacts
Standard Contacts
Material—Electrical grade copper
conductor
Screws—Steel, zinc plated to resist
corrosion in most applications
Duramax Contacts
(for highly corrosive
atmospheres)
Tubular Screw—Electrical grade
copper tube with nickel plating; nickel
plated brass screws. Nickel plating
exceeds specification QQ-N-290
Class 1, Type VII.
Wire Range—#12-1/0 AWG, solid or
stranded
Wire Strip Length—11/16" [17.46]
Screw Type—7/16" [11.11] - 20
slotted headless screw
Independent Testing Service
Listing and Recognition
UL Wire Sizes—Solid or Stranded,
Tubular Screw
1 — #1/0 AWG, 1 — #1 AWG
1 — #2 AWG, 1 or 2 — #4 AWG
1, 2 or 3 — #6 AWG,
1, 2, 3 or 5 — #8 AWG
1 to 6 — #10 AWG, 1 to 7 — #12 AWG
LR25557
E63810
274
Catalog 1308389
Revised 6-07
www.tycoelectronics.com
Dimensions are in millimeters
and inches unless otherwise
specified.
Dimensions are shown for
reference purposes only.
Specifications subject
to change.
USA: 1-800-522-6752
Canada: 1-905-470-4425
Mexico: 01-800-733-8926
C. America: 52-55-1106-0803
South America: 55-11-2103-6000
Hong Kong: 852-2735-1628
Japan: 81-44-844-8013
UK: 8706-080-208
Note: All part numbers
are RoHS Compliant.
BUCHANAN Terminal Blocks
800 Series, Intermediate Heavy Duty Accessories
Channel Clamps
Mounting Channel
Pre-punched
Aluminum
Channel
Screw
Channel
Clamps
Universal
Clamps
Snap-In
Clamps
See-thru
Cover
Ganging
Rod
Part Number
9-1437381-1
9-1437381-8
9-1437381-2
9-1437381-9
1437382-2
9-1437381-5
1437382-3
9-1437381-7
4-1437390-4
3-1437381-9
Catalog Number
60
63-BU
60-B-36
64
67
61
68
62
93-BU
30-BU
3 feet
6 feet
3 feet
—
—
—
—
2 feet
Standard Length
6 feet
3 feet
NEMA Terminal
Blocks
Break
Away
Steel
Steel
Channel
6
Jumpers
Marking Accessories
Plastic
Cloth
Tape
Plastic
Cloth
Tape
Vinyl
Marking
Strips
Elevated
Marking
Strip
Holding
Screw
Snap-apart
Jumper
Part Number
1437382-1
8-1437381-0
6-1437381-3
4-1437391-1
7-1437381-8
1-1437382-6
Catalog Number
66
55-BU
50-BU
52
53-BU
76
Standard Length
—
50 feet
25 feet
18 inches
—
12 ckt
RELATED PRODUCT DATA
WIRE PINS AND FERRULES: Pages 109-111
For more information on AMP Standard
Terminals and Splices or Quick-Connect
FASTON Receptacles and Tabs, request
Catalog 82042.
275
Catalog 1308389
Revised 6-07
www.tycoelectronics.com
Dimensions are in millimeters
and inches unless otherwise
specified.
Dimensions are shown for
reference purposes only.
Specifications subject
to change.
USA: 1-800-522-6752
Canada: 1-905-470-4425
Mexico: 01-800-733-8926
C. America: 52-55-1106-0803
South America: 55-11-2103-6000
Hong Kong: 852-2735-1628
Japan: 81-44-844-8013
UK: 8706-080-208
Note: All part numbers
are RoHS Compliant.
BUCHANAN Terminal Blocks
800 Series, Intermediate Heavy Duty
Flat Base
Dovetail Base Mounted On
Standard #60 Channel
LR25557
E63810
276
Catalog 1308389
Revised 6-07
www.tycoelectronics.com
Dimensions are in millimeters
and inches unless otherwise
specified.
Dimensions are shown for
reference purposes only.
Specifications subject
to change.
USA: 1-800-522-6752
Canada: 1-905-470-4425
Mexico: 01-800-733-8926
C. America: 52-55-1106-0803
South America: 55-11-2103-6000
Hong Kong: 852-2735-1628
Japan: 81-44-844-8013
UK: 8706-080-208
Note: All part numbers
are RoHS Compliant.
BUCHANAN Terminal Blocks
400 Series, Ultra Heavy Duty
Product Facts
NEMA Terminal
Blocks
400 Series
n Compact 2/0 or 250 kcmil
(MCM) block - at least 57
circuits per 6- foot length,
1-3/16" [30.16] center-tocenter spacing.
n High current capacity snapfit sectional block — tubular
contacts accept single or
combinations of wire sizes
as large as 250 kcmil
(MCM).
n Two contact styles available;
rated up to 270 amperes for
copper wire.
n Allen head screws allow
maximum torque when using
large wire sizes.
n Withstand voltages in excess
of IEEE switchgear standards
for 750 volts. Meet clearance
and creepage spacing
specified in UL, CSA, and
NEMA Industrial Control
Standards for 600 volts.
n Same block directly mounts
on surface or channel
mounts.
n Only one end section needed
per block assembly.
n Readily identify circuits—
order blocks with painted
marking area or use
removable vinyl marking
strip. Preprinted marking
strips are also available.
n Factory assembled blocks
available.
n Ultra Heavy Duty phenolic
block sections do not snap-fit
with other block styles.
This Ultra Heavy Duty line
includes the 400 Series
rated up to 270 A.
6
LR25557
E63810
277
Catalog 1308389
Revised 6-07
www.tycoelectronics.com
Dimensions are in millimeters
and inches unless otherwise
specified.
Dimensions are shown for
reference purposes only.
Specifications subject
to change.
USA: 1-800-522-6752
Canada: 1-905-470-4425
Mexico: 01-800-733-8926
C. America: 52-55-1106-0803
South America: 55-11-2103-6000
Hong Kong: 852-2735-1628
Japan: 81-44-844-8013
UK: 8706-080-208
Note: All part numbers
are RoHS Compliant.
BUCHANAN Terminal Blocks
400 Series, Ultra Heavy Duty, 600 V, 1.19" [30.23] Pitch
Material & Finish
Housing Material—Phenolic, filled
flame retardant
Flammability—UL94V-1
Color—Black
Contacts:
Material—Electrical grade copper
conductor; plated steel screws resist
corrosion
Tubular Screw Type—
Small: 1/2" [12.7] - 13 Hex
Large: 3/4" [19.05] - 16 Hex socket
set screw
Mechanical Properties
Pitch (terminal spacing)—
1.19" [30.23]; 9 circuits/foot
Wire Strip Length—
Tubular Screw (small): 1" [25.4]
Tubular Screw (large): 1" [25.4]
Electrical Properties
Maximum Current—255A for a single
250MCM wire
Operating Voltage—Blocks meet
600V creepage and clearance
requirements; withstand voltage greatly
exceeds standards for 750V
Wire Range—Tubular Screw (small):
#4-#2/0 AWG solid or stranded; Tubular
Screw (large): #6 AWG-250 kcmil
(MCM) solid or stranded
Dielectric Strength (RH 40% @
sea level)—300 V/mil thickness per
ASTM D149
Breakdown Voltage, AC, 60Hz—
Contact-to-Contact: 10,000V
Contact-to-Ground: 10,000V
UL High Voltage Arc Tracking
(in./min.)—.49-.58 [12.45-14.73]
Note: For Direct
Mounting, use #10
pan head screws
every six circuits.
recommended torque:
15-20 in.-lbs.
Same part used for both panel and
channel mounting.
Description
Tubular Screw, Unpainted
Tubular Screw, Painted
Tubular Screw, Unpainted
Tubular Screw, Painted
End Section
Wire
Range
#14-2/0
#14-2/0
#6-250 kcmil/MCM
#6-250 kcmil/MCM
—
Part
Number
1437396-4
1437396-7
1437396-5
1437396-8
1437396-9
Catalog
Number
416
426-BU
417
427-BU
430-BU
Environmental Properties
Max. Continuous Temperature—
150°C [302°F]
Water Absorption (24hrs. % wt.
gain)— .45% per ASTM D149
Chemical Resistance—Resistant to
acids, alkalies, and aliphatic
hydrocarbons and ketones per
ASTM D543
Radiation Resistance (ergs g-1
(C)—2.7 x 108
UL Independent Testing Service Recognitions:
Tubular Screw: Catalog # 416 & 426-BU
1 #2/0 AWG, 1 #1/0 AWG, 1 #1 AWG,
1 or 2 #2 AWG, 1 to 3 #4 AWG, 1 to 3 #6 AWG,
1 to 4 #8 AWG, 1 to 6 #10 AWG, 2 to 8 #12 AWG,
Tubular Screw: Catalog # 417 & 427-BU
1 #250kcmil (MCM), 1 #4/0 AWG, 1 #3/0 AWG,
1 or 2 #2/0 AWG, 1 or 2 #1/0 AWG, 1 or 2 #1 AWG, 1 to 3 #2 AWG, 1 to 4 #4 AWG,
1 to 5 #6 AWG
LR25557
E63810
278
Catalog 1308389
Revised 6-07
www.tycoelectronics.com
Dimensions are in millimeters
and inches unless otherwise
specified.
Dimensions are shown for
reference purposes only.
Specifications subject
to change.
USA: 1-800-522-6752
Canada: 1-905-470-4425
Mexico: 01-800-733-8926
C. America: 52-55-1106-0803
South America: 55-11-2103-6000
Hong Kong: 852-2735-1628
Japan: 81-44-844-8013
UK: 8706-080-208
Note: All part numbers
are RoHS Compliant.
BUCHANAN Terminal Blocks
400 Series, Ultra Heavy Duty Accessories
Mounting Channel
Steel
Channel
Part Number
9-1437381-1
9-1437381-8
Standard Length
6 feet
3 feet
Break
Away
Steel
Pre-punched
Aluminum
Channel
Screw
Channel
Clamps
Universal
Clamps
Snap-In
Clamps
9-1437381-2
9-1437381-9
1437382-2
9-1437381-5
1437382-3
9-1437381-7
60-B-36
64
67
61
68
62
3 feet
6 feet
3 feet
—
—
—
NEMA Terminal
Blocks
Catalog Number
60
63-BU
Channel Clamps
Marking Accessories
6
Plastic
Cloth
Tape
Part Number
8-1437381-0
Vinyl
Marking
Strips
Elevated
Marking
Strip
Holding
Screw
6-1437381-3
4-1437391-1
7-1437381-8
Catalog Number
55-BU
50-BU
52-BU
53-BU
Standard Length
50 feet
25 feet
18 inches
—
Notes:
For factory assembled blocks on channel, prefix Catalog # with “0” and suffix
with number of blocks desired. Without channel (maximum of 6 sections)
delete “0”.
Example: Ten tubular screw sections preassembled on channel = 041710
For unpainted factory assembled blocks supplied with a removable marking
strip add -1 to Catalog Number.
For blocks with two or more different contact sections, imprinted marking
strips or special features, consult Technical Support.
Related Product Data
Wire Pins and Ferrules—Pages 109-111
For more information on AMP Standard Terminals
and Splices or Quick-Connect FASTON Receptacles
and Tabs, request Catalog 82042.
279
Catalog 1308389
Revised 6-07
www.tycoelectronics.com
Dimensions are in millimeters
and inches unless otherwise
specified.
Dimensions are shown for
reference purposes only.
Specifications subject
to change.
USA: 1-800-522-6752
Canada: 1-905-470-4425
Mexico: 01-800-733-8926
C. America: 52-55-1106-0803
South America: 55-11-2103-6000
Hong Kong: 852-2735-1628
Japan: 81-44-844-8013
UK: 8706-080-208
Note: All part numbers
are RoHS Compliant.
BUCHANAN Terminal Blocks
Engineering Notes
280
Catalog 1308389
Revised 6-07
www.tycoelectronics.com
Dimensions are in millimeters
and inches unless otherwise
specified.
Dimensions are shown for
reference purposes only.
Specifications subject
to change.
USA: 1-800-522-6752
Canada: 1-905-470-4425
Mexico: 01-800-733-8926
C. America: 52-55-1106-0803
South America: 55-11-2103-6000
Hong Kong: 852-2735-1628
Japan: 81-44-844-8013
UK: 8706-080-208
Note: All part numbers
are RoHS Compliant.
BUCHANAN Terminal Blocks
Fuse & Switch
Product Facts
High Density Blocks
n Fuse
and Switch Blocks rated
15A and 300V.
n High Density 0.36" [9.14]
centerline spacing saves
panel space; at least 33
circuits per foot.
Fuse Blocks
n Provide
NEMA Terminal
Blocks
in-line circuit
protection for virtually any
circuit or group of circuits —
select contacts for
terminated or unterminated
wire.
n Remove, check and replace
fuses safely and quickly —
switch action fuse blocks
open circuits before fuse can
be removed or installed.
n Contacts conservatively
rated to 30 amperes.
6
Switch Blocks
n Quickly
and easily interrupt a
circuit or group of circuits —
insert switch blocks directly
in line. Contacts available
for terminated or
unterminated wire.
n Keep circuits open for
extended periods — switch
blade can be removed
entirely from block for lockout protection.
n Rated to 15 amperes.
Common Features of 300 &
0300 Series
n At
least 91 circuits per 6-foot
length, 3/4 inch center-tocenter spacing.
n Blocks meet 600 volt
clearance and creepage
spacings specified in UL,
CSA, and NEMA Industrial
Control Standards.
n Choose nylon housing
material — for more rugged
applications; polypropylene
for fire retardant
characteristics.
n Dovetail base fits standard
mounting channel — can
also be mounted on flat
surfaces.
n Only one end section needed
per block assembly.
n Readily
identify circuits —
mark directly on white,
matte-surface puller
assembly, marking tab on
block, or use removable
marking tape.
n Open or close several
circuits simultaneously —
holes in puller handles allow
use of nylon “ganging” rods.
n Fuse and Switch block
sections snap-fit with 300 &
600 Volt, phenolic Medium
Duty, Heavy Duty, and
Intermediate Heavy Duty
blocks.
This broad line features
High Density Blocks (Series
0135), Nylon &
Polypropylene Blocks
(Series 0300) and Phenolic
Blocks (Series 300).
LR25557
E63810
281
Catalog 1308389
Revised 6-07
www.tycoelectronics.com
Dimensions are in millimeters
and inches unless otherwise
specified.
Dimensions are shown for
reference purposes only.
Specifications subject
to change.
USA: 1-800-522-6752
Canada: 1-905-470-4425
Mexico: 01-800-733-8926
C. America: 52-55-1106-0803
South America: 55-11-2103-6000
Hong Kong: 852-2735-1628
Japan: 81-44-844-8013
UK: 8706-080-208
Note: All part numbers
are RoHS Compliant.
BUCHANAN Terminal Blocks
0300 Series, Fuse & Switch, Nylon and Polypropylene
Fuse Block
Strap Screw
Fuse Block
Strap Clamp
Fuse Block
Tubular Screw
Switch Block
Strap Screw
Characteristics
Type of Block
Channel Mount (Dovetail Base)
Nylon
Polypropylene
Corrosion Resistant Nylon
Corrosion Resistant Polypropylene
Model
Part
Number
Model
Part
Number
Model
Part
Number
Model
Part
Number
0311
P0311
D0311
DP0311
1437397-1
4-1437397-0
1-1437389-1
6-1437389-2
0318
P0318
D0318
DP0318
1437397-3
4-1437397-3
1776726-1
1776727-1
0312
P0312
D0312
DP0312
1437397-2
4-1437397-2
1-1437389-2
6-1437389-3
0371
P0371
D0371
DP0371
1-1437397-7
4-1437397-4
1-1437389-7
1776728-1
Contact Type
Specifications
Wire Range (AWG)
Solid & Stranded
Wire Strip Length (in.)
Screw Type
22-8
18-8
18-8
22-8
—
10-32
binding head
1/2
8-32
pan head w/clamp
1/2
1/4"-28
set screw
—
10-32
binding head
25 A
25 A
25 A
15 A
Ampacity
End Sections
Channel Mount, Nylon
Channel Mount, Polypropylene
0380
P0380
2-1437397-0
4-1437397-7
0380
P0380
2-1437397-0
4-1437397-7
0380
P0380
2-1437397-0
4-1437397-7
0380
P0380
2-1437397-0
4-1437397-7
Notes: Standard package is 100 pieces for contact, 25 pieces for end section.
For factory assembled blocks on channel, suffix Catalog Number with number of blocks desired.
Without channel delete “0” prefix on Catalog Number.
EXAMPLE:
Ten strap-screw fuse block sections preassembled on channel = 031110.
For blocks with two or more contact types, preassembled with other blocks, imprinting or
special features, consult Technical Support.
282
Catalog 1308389
Revised 6-07
www.tycoelectronics.com
Dimensions are in millimeters
and inches unless otherwise
specified.
Dimensions are shown for
reference purposes only.
Specifications subject
to change.
USA: 1-800-522-6752
Canada: 1-905-470-4425
Mexico: 01-800-733-8926
C. America: 52-55-1106-0803
South America: 55-11-2103-6000
Hong Kong: 852-2735-1628
Japan: 81-44-844-8013
UK: 8706-080-208
Note: All part numbers
are RoHS Compliant.
BUCHANAN Terminal Blocks
0300 Series, Fuse & Switch, Nylon and Polypropylene (Continued)
Specifications
Pitch—0.75” [19.05] centerline, 16 circuits per foot
Voltage Rating—Blocks meet 600 volt creepage and clearance requirements of
NEMA, UL and CSA for general industrial control equipment and panelboards.
Withstand voltages greatly in excess of IEE switchgear standards for 750 volts.
Fuse Size—Any 13/32 x 1-1/2 in. [10.32 x 28.10] ferrule type cartridge fuse up to
25 amps, indicating or non-indicating, which meets Mil. Spec. F-15160.
Switch Block
Strap Clamp
Switch Block
Tubular Screw
Part
Number
Model
Part
Number
0378
P0378
D0378
DP0378
1-1437397-9
4-1437397-6
1776729-1
1776730-1
0372
P0372
D0372
DP0372
1-1437397-8
4-1437397-5
1776731-1
1776732-1
Material—Electrical grade copper or copper alloy conductor. Steel Screws plated to
resist corrosion in most industrial applications
AL-CU Tubular Screw—Aluminum compatibility with aluminum or copper
conductors. AL-CU is tin-plated brass.
Environmental Contacts
(for highly corrosive atmospheres)
NEMA Terminal
Blocks
Model
Standard Contacts
Tubular Screw—Electrical grade copper tube with nickel plating. Nickel plated
brass screws.
Strap Screw—Nickel plated brass straps and screws. Nickel plating meets
specification QQ-N-290A Class I, Grade G.
Polyamide Material:
18-8
1/2
8-32
pan head w/clamp
18-8
1/2
1/4"-28
set screw
15 A
15 A
0380
P0380
2-1437397-0
4-1437397-7
0380
P0380
2-1437397-0
4-1437397-7
Housing Material—Polyamide, Unfilled Type 6/6
Max. Continuous Temperature—125°C, (257°F)
Breakdown Voltage (AC, 60 Hz)—
Contact-to-Contact: 7000V
Contact-to-Ground: 10,000V
Dielectric Strength (RH 40% at Sea Level)—470-385 Volts/mil thickness Per
ASTM D149
UL High Voltage Arc Tracking (inches/min.)—.01-.35 [.25-8.89]
Water Absorption (24 hrs. % wt. gain)—1.5% per ASTM D570
Flammability—UL94V-2
Chemical Resistance—Resistant to aromatic hydrocarbons, strong alkalies per
ASTM D543
Radiation Resistance (ergs g-1 (C)—8 x 107
Color—Translucent White
6
Polypropylene Material:
Housing Material—Polypropylene, Filled self-extinguishing
Max. Continuous Temperature—105°C, (221°F)
Breakdown Voltage (AC, 60Hz)—
Contact-to-Ground: 10,000V
Contact-to-Contact: 7000V
Dielectric Strength (RH 40% at Sea Level)—500 Volts/mil thickness per
ASTM D149
UL High Voltage Arc Tracking (inches/min.)—Did not track
Water Absorption (24 hrs. % wt. gain)—0.02% Per ASTM D570
Flammability—UL94V-0
Chemical Resistance—Resistant to most acids, alkalines, and saline solutions.
Also resistant to higher aliphatic solvents and polar substances per ASTM D543
Radiation Resistance (ergs g-1 (C)— No data Available
Color—Opaque White
Fuse Puller:
Material
Color
High-temperature,
glass-reinforced nylon
Black
Switch Handle:
Material
Color
Polypropylene
White
283
Catalog 1308389
Revised 6-07
www.tycoelectronics.com
Dimensions are in millimeters
and inches unless otherwise
specified.
Dimensions are shown for
reference purposes only.
Specifications subject
to change.
USA: 1-800-522-6752
Canada: 1-905-470-4425
Mexico: 01-800-733-8926
C. America: 52-55-1106-0803
South America: 55-11-2103-6000
Hong Kong: 852-2735-1628
Japan: 81-44-844-8013
UK: 8706-080-208
Note: All part numbers
are RoHS Compliant.
BUCHANAN Terminal Blocks
0300 Series, Fuse & Switch, Nylon and Polypropylene (Continued)
Mounting Channel
Break
Away
Steel
Pre-punched
Aluminum
Channel
9-1437381-2
9-1437381-9
1437382-2
60-B-36
64
67
3 feet
6 feet
3 feet
Steel
Channel
Part Number
9-1437381-1
9-1437381-8
Catalog Number
60
63-BU
Standard Length
6 feet
3 feet
Marking Accessories
Channel Clamps
Screw
Channel
Clamps
Part Number
9-1437381-5
Universal
Clamps
Snap-In
Clamps
Ganging
Rod
Coated
Cloth
Marking tape
1437382-3
9-1437381-7
3-1437381-9
8-1437381-0
Catalog Number
61
68
62
30
55-BU
Standard Length
—
—
—
2 feet
50 feet
Related Product Data
Wire Pins and Ferrules—Pages 109-111
For more information on AMP Standard Terminals
and Splices or Quick-Connect FASTON Receptacles
and Tabs, request Catalog 82042.
284
Catalog 1308389
Revised 6-07
www.tycoelectronics.com
Dimensions are in millimeters
and inches unless otherwise
specified.
Dimensions are shown for
reference purposes only.
Specifications subject
to change.
USA: 1-800-522-6752
Canada: 1-905-470-4425
Mexico: 01-800-733-8926
C. America: 52-55-1106-0803
South America: 55-11-2103-6000
Hong Kong: 852-2735-1628
Japan: 81-44-844-8013
UK: 8706-080-208
Note: All part numbers
are RoHS Compliant.
BUCHANAN Terminal Blocks
0300 Series, Fuse & Switch, Nylon and Polypropylene (Continued)
Dovetail Base Mounted On
Standard #60 Channel.
May Also Be Mounted
Direct
NEMA Terminal
Blocks
6
285
Catalog 1308389
Revised 6-07
www.tycoelectronics.com
Dimensions are in millimeters
and inches unless otherwise
specified.
Dimensions are shown for
reference purposes only.
Specifications subject
to change.
USA: 1-800-522-6752
Canada: 1-905-470-4425
Mexico: 01-800-733-8926
C. America: 52-55-1106-0803
South America: 55-11-2103-6000
Hong Kong: 852-2735-1628
Japan: 81-44-844-8013
UK: 8706-080-208
Note: All part numbers
are RoHS Compliant.
BUCHANAN Terminal Blocks
300 Series, Fuse & Switch, Phenolic
Strap Screw
Characteristics
Type of Block
Direct Mount (Flat Base)
Fuse Block with Puller
Fuse Block without Puller
Switch Block
Channel Mount (Dovetail Base)
Fuse Block with Puller
Fuse Block without Puller
Switch Block
Strap Clamp
Tubular Screw
Model
Part
Number
Model
Part
Number
Model
Part
Number
351
361
341
2-1437397-8
2-1437397-2
2-1437397-5
358
368-BU
348
3-1437397-1
3-1437397-5
2-1437397-7
352
362-BU
342
3-1437397-0
3-1437397-3
2-1437397-6
0351
0361
0341
1437397-9
1437397-4
1437397-6
0358
0368
0348
1-1437397-2
1-1437397-6
1437397-8
0352
0362
0342
1-1437397-0
1-1437397-5
1437397-7
Contact Type
Specifications
Wire Range (AWG)
Solid & Stranded
Wire Strip Length (in.)
Screw Type
22-8
18-8
18-8
—
8-32
binding head
1/2
8-32
pan head w/clamp
1/2
1/4"-28
set screw
25A
15A
25A
15A
25A
15A
Ampacity
Fuse Blocks
Switch Blocks
End Sections
No Contact, Flat Base
No Contact, Dovetail Base
330-BU
0330
2-14376397-4
14376397-5
330-BU
0330
2-14376397-4
14376397-5
330-BU 2-14376397-4
0330
14376397-5
Comparison (Type of Block)
Notes: Standard package is 10 pieces.
For factory assembled blocks, suffix Catalog Number with number of blocks desired
(Maximum number of flat base preassembled sections is 6).
EXAMPLE:
Twelve strap screw, fuse block sections preassembled on channel = 035112.
Six flat tubular screw, switch blocks preassembled without channel for direct mounting = 3426
Direct Mount
(Flat Base)
Channel Mount
(Dovetail Base)
For blocks with two or more different contact sections, preassembled with other blocks, imprinting or
special features, consult Technical Support.
Except
Switch
Blocks
Environmental contacts for highly corrosive atmospheres are available with Nickel plating on
non-ferrous hardware. To order, prefix Catalog Number with “D”.
LR25557
E34934
286
Catalog 1308389
Revised 6-07
www.tycoelectronics.com
Dimensions are in millimeters
and inches unless otherwise
specified.
Dimensions are shown for
reference purposes only.
Specifications subject
to change.
USA: 1-800-522-6752
Canada: 1-905-470-4425
Mexico: 01-800-733-8926
C. America: 52-55-1106-0803
South America: 55-11-2103-6000
Hong Kong: 852-2735-1628
Japan: 81-44-844-8013
UK: 8706-080-208
Note: All part numbers
are RoHS Compliant.
BUCHANAN Terminal Blocks
300 Series, Fuse & Switch, Phenolic—Accessories
Physical Properties
Fuse Puller
Mounting Channel
Housing Material—Phenolic, filled flame retardant
Color—Black
Contacts
Pre-punched
Aluminum
Channel
Fuse
Puller
Part Number
9-1437381-1
9-1437381-8
Catalog Number
60-BU
63-BU
9-1437381-2
9-1437381-9
1437382-2
2-1437397-1
2-1437397-2
60-B-36
64
67
31-BU
32
3 feet
6 feet
3 feet
—
—
Standard Length
6 feet
3 feet
3-Gang
Fuse
Puller
Part Number
9-1437381-5
Pitch (terminal spacing)—0.75" [19.05]
(16 circuits per foot)
Switch Handles
Material—Polypropylene
Color—White
Electrical Properties
Marking Accessories
Channel Clamps
Screw
Channel
Clamps
Mechanical Properties
NEMA Terminal
Blocks
Break
Away
Steel
Steel
Channel
Material—Copper alloy spring clips. Steel screws
plated to resist corrosion in most industrial
applications
Strap Screw—11/32" max. lug width
Universal
Clamps
Snap-In
Clamps
Ganging
Rod
Coated
Cloth
Marking Tape
1437382-3
9-1437381-7
3-1437381-9
8-1437381-0
Catalog Number
61
68
62
30
55-BU
Standard Length
—
—
—
2 feet
50 feet
Operating Voltage—Blocks meet 600V creepage
and clearance requirements of NEMA, UL and CSA
standards for general industrial control equipment and
panelboards; withstand voltage exceeds IEEE
switchgear standards for 750V
Dielectric Strength (RH 40% @ sea level)—
300 volts/mil thickness per ASTM D149
UL High Voltage Arc Tracking (inches/min.)—
.49-.58 [12.45-14.73]
Fuse Size—Any 13/32 x 1-1/2 in. [10.32 x 38.10]
ferrule type cartridge fuse up to 25 amps, indicating or
non-indicating, which meets Mil. Spec. F-15160, is
recommended.
6
Environmental Properties
Max. Service Temperature—150°C (302°F)
Water Absorption (24hrs. % wt. gain)—0.45%
per ASTM D570
Flammability Rating—UL94V-1
Chemical Resistance—Resistant to acids, alkalies,
and aliphatic hydrocarbons and ketones, per
ASTM D543
Radiation Resistance (ergs g-1 (C)—2.7 x 108
UL Independent Testing Service
Recognitions:
Wire Sizes—Solid or Stranded, Tubular Screw Cat.
# 362-BU, 0362
1 #4 AWG, 1 #6 AWG, 1 #8 AWG,
1 to 4 #10 AWG, 1 to 5 #12 AWG, 1 to 6
#14 AWG, 1 to 6 #16 AWG, 1 to 8 #18 AWG
Related Product Data
Wire Pins and Ferrules—Pages
135-137
For more information on AMP Standard
Terminals and Splices or Quick-Connect
FASTON Receptacles and Tabs, request
Catalog 82042.
Cat #’s
31 and
32
E63810
287
Catalog 1308389
Revised 6-07
www.tycoelectronics.com
Dimensions are in millimeters
and inches unless otherwise
specified.
Dimensions are shown for
reference purposes only.
Specifications subject
to change.
USA: 1-800-522-6752
Canada: 1-905-470-4425
Mexico: 01-800-733-8926
C. America: 52-55-1106-0803
South America: 55-11-2103-6000
Hong Kong: 852-2735-1628
Japan: 81-44-844-8013
UK: 8706-080-208
Note: All part numbers
are RoHS Compliant.
BUCHANAN Terminal Blocks
300 Series, Fuse & Switch, Phenolic, Flat Base
Dovetail Base Mounted On
Standard #60 Channel
288
Catalog 1308389
Revised 6-07
www.tycoelectronics.com
Dimensions are in millimeters
and inches unless otherwise
specified.
Dimensions are shown for
reference purposes only.
Specifications subject
to change.
USA: 1-800-522-6752
Canada: 1-905-470-4425
Mexico: 01-800-733-8926
C. America: 52-55-1106-0803
South America: 55-11-2103-6000
Hong Kong: 852-2735-1628
Japan: 81-44-844-8013
UK: 8706-080-208
Note: All part numbers
are RoHS Compliant.
BUCHANAN Terminal Blocks
One-Piece Phenolic Blocks
Product Facts
n Two,
NEMA Terminal
Blocks
four, six, eight, and
twelve circuit models
available — 5/8" [15.88]
center-to-center contact
spacing.
n No assembly required —
each is a single, easily
installed unit.
n Three contact styles
available —strap screw,
captive strap clamp, and
moving tubular contact.
n Use wire up to #6 AWG with
tubular contact. Strap screw
and strap clamp contacts are
available for #8 and smaller.
n Withstand voltages in excess
of IEEE standards for 750
volts. Meet clearance and
creepage spacings specified
in UL, CSA, and NEMA
Industrial Control Standards
for 600 Volts.
n Strap contacts rated at 50
amperes — tubular contact
conservatively rated at 70
amperes.
n Pilot point screws supplied
with strap screw and clamp
contacts —speeds
installation time.
n Plain white marking strip
supplied with each block —
circuits are easily identified.
n Special purpose blocks
available—choose from
blocks with solder posts,
printed circuit board pins, or
nuts on screw posts,
removable circuit links, and
a shorting bar.
6
Traditionally, these rugged
One-Piece Blocks are the
standard means of
connection for heavy
industrial applications like
rail transport, utility, and
traffic control industries.
Ideal for dirty and vibration
prone environments.
LR25557
E63810
289
Catalog 1308389
Revised 6-07
www.tycoelectronics.com
Dimensions are in millimeters
and inches unless otherwise
specified.
Dimensions are shown for
reference purposes only.
Specifications subject
to change.
USA: 1-800-522-6752
Canada: 1-905-470-4425
Mexico: 01-800-733-8926
C. America: 52-55-1106-0803
South America: 55-11-2103-6000
Hong Kong: 852-2735-1628
Japan: 81-44-844-8013
UK: 8706-080-208
Note: All part numbers
are RoHS Compliant.
BUCHANAN Terminal Blocks
B100, #B100 Series, One-Piece Blocks, 600 V — Phenolic
Material & Finish
Housing Material—Phenolic, filled
flame retardant
Flammability—UL94V-1
Color—Black
Contacts
Standard Material—Electrical grade
copper or copper alloy conductor. Steel
screws plated to resist corrosion in most
industrial applications.
Brass Material—For Corrosive
Environment (2B100, 4B100 Series)
Nickel plated brass straps and screws.
Meets specification QQ-N-290A Class 1,
Grade G
Wire Range—Strap Screw: #18-8
AWG solid or stranded; Tubular Clamp:
#14-6 AWG solid or stranded
Screw Type—Strap Screw: #10-32
Binding Head; Tubular Clamp:
#1/4"[6.35]-28 Set Screw
Strap Screw—7/16" [11.11] max. lug
width
Mechanical Properties
Pitch (terminal spacing)—
.63" [16.00]
Wire Strip Length—Strap Screw: as
needed for lugging; Tubular Clamp:
1/2" [12.1]
Electrical Properties
Maximum Current—70A for a single
#6 AWG wire
Operating Voltage—Blocks meet
600V creepage and clearance
requirements for general industrial
control equipment and panelboards;
greatly exceeds IEEE switchgear
standards for 750 volts.
Dielectric Strength (RH 40% @
sea level)—300 Volts/mil thickness
per ASTM D149
UL High Voltage Arc Tracking
(in./min.)—.49-.58 [12.45-14.73]
Environmental Properties
Max. Continuous Temperature—
150°C (302°F)
Water Absorption (24hrs. % wt.
gain)—.45% per ASTM D570
Chemical Resistance—Resistant to
acids, alkalies, and aliphatic
hydrocarbons and ketones per
ASTM D543
Radiation Resistance (ergs G-1
(C)—2.7 x 108 min
UL Independent Testing
Service Recognitions
Circuits
Steel Screw
w/Strap
Part Number Catalog Number
Tubular
Clamp
Part Number Catalog Number
Brass Screw
w/Strap
Part Number Catalog Number
Contact Type
AMPACITY
65A
50A
50A
Standard
2
4
6
8
12
2-1437382-6
3-1437382-0
4-1437382-0
4-1437382-9
5-1437382-9
B102
B104
B106-BU
B108
B112-BU
2-1437382-8
3-1437382-6
4-1437382-5
5-1437382-5
6-1437382-7
B102S
B104S
B106S
B108S
B112S
2-1437381-0
2-1437381-2
2-1437381-6
3-1437381-0
3-1437381-3
2B102
2B104
2B106
2B108
2B112
Shorting*
2
4
6
8
12
4-1437381-0
4-1437381-1
4-1437381-3
4-1437381-5
4-1437381-7
3B102P
3B104P
3B106P
3B108P
3B112P
—
—
—
—
—
—
—
—
—
—
5-1437381-6
5-1437381-7
5-1437381-8
5-1437381-9
6-1437381-0
4B102P
4B104P
4B106P
4B108P
4B112P
Circuits
Strap Screw
#8 & Smaller
Removable Link
2
8-1437381-4
4
8-1437381-5
8-1437381-7
6
8
8-1437381-8
12
9-1437381-0
Stud, #10-32
2
4
6
8
12
—
—
—
—
—
Threaded
Post & Nut
5B102
5B104
5B106
5B108
5B112
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
1-1437382-8
2-1437382-0
2-1437382-1
2-1437382-2
2-1437382-3
7B102
7B104
7B106
7B108
7B112
Notes:
For prenumbered marking strip, add suffix “N” to Catalog Number. Cannot
be used on 3B or 4B series.
For factory assembled hinged cover, add suffix “H” to
Catalog Number. Cannot be used on 3B or 4B series.
For factory assembled thumbscrew-fastened cover, add suffix “T” to Catalog
Number. Cannot be used on 3B or 4B series.
Screws and removable links shipped unassembled.
Wire Sizes—Solid or Stranded,
Tubular Clamp
1—#6 AWG, 1—#8 AWG, 1or 2 —
#10 AWG, 1or 2—#12 AWG, 1 to 3—
#14 AWG, 1 —#10 & 1 —#12 AWG
1 — #12 & 1 — #14 AWG
*Shorting blocks are supplied with 2 shorting screws each.
Except for 3B and 4B Series
LR25557
E63810
290
Catalog 1308389
Revised 6-07
www.tycoelectronics.com
Dimensions are in millimeters
and inches unless otherwise
specified.
Dimensions are shown for
reference purposes only.
Specifications subject
to change.
USA: 1-800-522-6752
Canada: 1-905-470-4425
Mexico: 01-800-733-8926
C. America: 52-55-1106-0803
South America: 55-11-2103-6000
Hong Kong: 852-2735-1628
Japan: 81-44-844-8013
UK: 8706-080-208
Note: All part numbers
are RoHS Compliant.
BUCHANAN Terminal Blocks
B100, #B100 Series, One-Piece Blocks, 600 V — Phenolic Accessories
Covers and Marking
Circuits
Shorting Block
White Marking
Numbered Marking
Cover
Strip
Strip
Part Number Catalog Number Part Number Catalog Number Part Number Catalog Number
9-1437382-2
CS102
1-1437383-5
S102
1776733-2
N102
9-1437382-3
CS104
1-1437383-6
S104
1-1437383-1
N104
9-1437382-4
CS106
1-1437383-7
S106
1-1437383-2
N106
9-1437382-5
CS108
1-1437383-8
S108
1-1437383-3
N108
9-1437382-6
CS112
1-1437383-9
S112
1-1437383-4
N112
2
4
6
8
12
Hardware
—
6
Hardware
Jumpers
Circuits
NEMA Terminal
Blocks
2
4
6
8
12
Laminated Phenolic
Cover
Part Number Catalog Number
7-1437382-5
C102-BU
7-1437382-6
C104-BU
7-1437382-7
C106-BU
7-1437382-8
C108-BU
7-1437382-9
C112-BU
30A Copper
Jumpers
Part No. Catalog No.
1437383-2
J102
1437383-3
J104
1437383-4
J106
1437383-5
J108
1437383-6
J112
—
—
50A 12 Circuit
Jumpers
Part No. Catalog No.
—
—
—
—
—
—
—
—
1437395-9 HJ112
—
—
Connecting
Link
Part No. Catalog No.
—
—
—
—
—
—
—
—
—
—
9-1437382-0
CL101
Lock Nuts
Part No.
—
—
—
—
—
Catalog No.
—
—
—
—
—
1437383-7
LN101-BU
Shorting
Screw
Part No. Catalog No.
—
—
—
—
—
—
—
—
—
—
7-1437381-7 51-BU
Related Product Data
Wire Pins and Ferrules—Pages 109-111
For more information on AMP Standard Terminals
and Splices or Quick-Connect FASTON
Receptacles and Tabs, request Catalog 82042.
LR25557
E63810
291
Catalog 1308389
Revised 6-07
www.tycoelectronics.com
Dimensions are in millimeters
and inches unless otherwise
specified.
Dimensions are shown for
reference purposes only.
Specifications subject
to change.
USA: 1-800-522-6752
Canada: 1-905-470-4425
Mexico: 01-800-733-8926
C. America: 52-55-1106-0803
South America: 55-11-2103-6000
Hong Kong: 852-2735-1628
Japan: 81-44-844-8013
UK: 8706-080-208
Note: All part numbers
are RoHS Compliant.
BUCHANAN Terminal Blocks
B100, #B100 Series, One-Piece Blocks, 600 V — Phenolic
292
Catalog 1308389
Revised 6-07
www.tycoelectronics.com
Dimensions are in millimeters
and inches unless otherwise
specified.
Dimensions are shown for
reference purposes only.
Specifications subject
to change.
USA: 1-800-522-6752
Canada: 1-905-470-4425
Mexico: 01-800-733-8926
C. America: 52-55-1106-0803
South America: 55-11-2103-6000
Hong Kong: 852-2735-1628
Japan: 81-44-844-8013
UK: 8706-080-208
Note: All part numbers
are RoHS Compliant.
BUCHANAN Terminal Blocks
Pre-Printed Marking Strips
M 50 005 13 G
C
D
A
M = Hot-Stamped Marking Strip
B
Terminal Block Series and
Designator
10 = Miniature or Single Tier
12 = Double Tier
67 = 900 Series Medium Duty
24 = Nylon Heavy Duty
21 = Phenolic Heavy Duty
80 = Intermediate Heavy Duty
40 = Ultra Heavy Duty
T2 = TSB230
T5 = TSB500
T6 = TSB1000
T7 = TSB2000
E
C Number of Circuits to be
Consecutively Numbered
(Use three digits: Ex.: 005 = 5,
055 = 55, etc.)
D Marking Style Options
11
12
13
14
=
=
=
=
1 2 3 4 5...
...5 4 3 2 1
...
...
NEMA Terminal
Blocks
Unlike painted or screened
letters, hot-stamped letters
are designed to not rub or
flake off during industrial
use so that they will retain
their legibility.
Marking strips are stamped
with consecutive numbers
that can be ordered to read
from left-to-right or right-toleft, and in vertical or
horizontal positions.
Number sequences can
begin with any number.
This allows circuits to be
identified in a manner most
consistent with the terminal
block application.
B
1
2
3
4
5
A
5
4
3
2
1
Circuit identification is
greatly simplified with the
use of pre-printed strips for
BUCHANAN terminal
blocks. These hot-stamped
strips are available for all
snap-assembled sections
(except Fuse, Switch, and
Circuit Breaker models
which are marked
individually). The strips can
be ordered separately or
pre-installed on factory
assembled sectional block
units.
E “First Number In Series”
Designator*
A=1
B=2
C=3
D=4
E=5
F =6
G=7
H=8
J =9
K=0
6
Marking Strip Installed
On A Factory-Assembled Terminal Block
615 005 11 A
A
A
B
C
Basic Sectional Block Catalog #
Number of Circuits to be Factory
Assembled and Consecutively
Numbered
(Use three digits: Ex: 005 = 5,
055 = 55, etc.)
C
Marking Style Options
11 = 1 2 3 4 5...
12 = ...5 4 3 2 1
13 =
...
14 = ...
D “First Number In Series”
Designator*
A=1
B=2
C=3
D=4
E=5
F =6
G=7
H=8
J =9
K=0
5
4
3
2
1
1
2
3
4
5
B
D
* Letters in this position designate the first number to be used in the consecutive sequence.
Ex.: “A” would start the sequence with the number 1. “EK” would start the sequence with the
number 50. “BKK” would start the series with 200. For non-sequential numbering and special
characters, consult Technical Support.
293
Catalog 1308389
Revised 6-07
www.tycoelectronics.com
Dimensions are in millimeters
and inches unless otherwise
specified.
Dimensions are shown for
reference purposes only.
Specifications subject
to change.
USA: 1-800-522-6752
Canada: 1-905-470-4425
Mexico: 01-800-733-8926
C. America: 52-55-1106-0803
South America: 55-11-2103-6000
Hong Kong: 852-2735-1628
Japan: 81-44-844-8013
UK: 8706-080-208
Note: All part numbers
are RoHS Compliant.
BUCHANAN Terminal Blocks
Technical Summary
Terminal
Block
or Product
Line
Contact
Type
Material
Plate
Screw
Style
Slot Size
High
Density
Tubular
Clamp
Electroplated
Tubular
Copper
Contact
6-32
Slotted
Head
Screw
033" Wide x
.040" Deep
[.84 x 1.02]
Steel
Steel
Electroplated
125-BU
211
HeavyDuty
062" Wide x
062" Deep
[1.57 x 1.57]
.037"
[.94]
Strap Screw
Binding
Head
10-32
Thread
“
241
Copper
Alloy
Strap
Electroplated
212
Heavy Duty
Electroplated
Tubular Screw
3/64" Wide x
1/16" Deep
[1.19 x 1.59]
242
213
243
218
Heavy Duty
Tubular Clamp
Heavy Duty
Tubular
Copper
Contact
“
Headless
1/4"-28 Thd.
Slotted
“
222-BU
“
“
248
Strap Clamp
3/64" Wide x
3/64" Deep
[1.19 x 1.19]
351
Fuse Block
361
Strap Screw
Pan
Head
Saddle
Clamp
8-32 Thd.
Binding
Head
8-32 Thd.
0311
358
368
318
352
Fuse Block
Strap Clamp
“
Fuse Block
Same
as above
except use H.D.
Tubular Contact
Cat.
No.
105-BU
115
362-BU
312
341
371
342
348
0378
Switch Block
Strap Clamp
342
0372
Switch Block
Tubular Screw
416
Extra
Heavy Duty
Tubular Screw
426-BU
Tubular Screw
Switch Block
Strap Screw
Copper
Alloy
Strap
Electroplated
Copper
Alloy
Electroplated
Spring Temper
CopperAlloy
Electroplated
Spring Temper
“
Same as above
except use H D.
Tubular Contact
ElectroplatedTubular Copper
Contact
Screw
Pan Head
w/SaddleClp.
8-32 Thd.
Headless
1/4"-28 Thd.
slotted
Pan Head
w/SaddleClp
8-32 Thd.
1/2"-13
Hex
Socket Hd.
Set Screw
1/4" [6.35]
Hex
Recommended
Screwdriver
Dimensions
Tip Thick Tip Width
.020"
9/64"
[.51]
[.02]
Wire
Strip
Length
Wire
Range
AWG
Rec.
Torque
in. - lb.
5/16"
[7.94]
#12-30
10
1⁄4"
[6.35]
As
Needed
for
Lugging
#8 or
Smaller
12
“
“
1/2"
[12.7]
#4-18
35
“
“
“
#6-18
35
“
“
“
#8-18
12
“
“
“
As
Needed
for
Lugging
#8 or
Smaller
10
“
“
“
1/2"
[12.7]
#8-18
“
“
“
“
“
“
“
“
“
“
#8 or
Smaller
“
“
“
“
As
Needed
for Lugging
1/2"
[12.7]
“
“
“
“
“
“
1/2" [12.7]
Hex
T-Bar Key
7/8"
[22.23]
#12-2/0
Material
& Plating
#8-18
200
Note: Representative Catalog Numbers Listed.
294
Catalog 1308389
Revised 6-07
www.tycoelectronics.com
Dimensions are in millimeters
and inches unless otherwise
specified.
Dimensions are shown for
reference purposes only.
Specifications subject
to change.
USA: 1-800-522-6752
Canada: 1-905-470-4425
Mexico: 01-800-733-8926
C. America: 52-55-1106-0803
South America: 55-11-2103-6000
Hong Kong: 852-2735-1628
Japan: 81-44-844-8013
UK: 8706-080-208
Note: All part numbers
are RoHS Compliant.
BUCHANAN Terminal Blocks
Technical Summary (Continued)
Cat.
No.
Terminal
Block
or Product
Line
Contact
Type
Material
plate
417
Extra HD
Electroplated
427-BU
Tubular
Screw
Medium Duty
Quick-Connect
Tubular
Copper Contact
1/4" Wide
QC .032" Thk
Copper Alloy
Electroplated
Electroplated
Tubular
Copper
Contact
517
617
717
1546235-1 Medium Duty
Tubular Clamp
1546148-1 Medium Duty
Tubular Screw
1546143-1 Medium Duty
Strap Screw
824-BU
Intermediate
Tubular Screw
B102
One-Piece Blk.
Strap Screw
B112-BU
B102S
B112S
One-Piece Blk.
Tubular
Contact
Steel
Electroplated
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
10-32
Slotted Hd
.046"
Wide x
.046"Deep
[1.17 x 1.17]
Steel
Electroplated
.032"
[.81]
3/16"
[4.76]
11/32"
[8.73]
#10-22
8
"
"
"
"
"
#8-18
10
"
"
"
"
"
3/64" Wide x
3/64" Deep
[1.19 x 1.19]
"
"
"
#8 or
Smaller
12
7/16"-20Thd. 5/64" Wide x
Slotted
5/64" Deep
Headless
[1.98 x 1.98]
"
.041"
[1.04]
3/8"
[9.53]
As
Needed
for
Lugging
11/16"
[17.46]
#12-1/0
50
10-32 Thd.
Slotted
Binding Hd.
1/16" Wide x
1/16" Deep
[1.59 x 1.59]
"
.037"
[.94]
1/4"
[6.35]
#8 or
Smaller
20
1/4" -28 Thd. 3/64" Wide x
Headless
3/64" Deep
Set Screw
[1.19 x 1.19]
"
"
"
As
Needed
for
Lugging
1/2"
[12.7]
#6-14
45
Screw
Style
1/4" Wide
"
QC .032" Thk.
Tubular Contact
Both Copper
Alloy Electroplated
Electroplated
"
Tubular Copper
Contact
Copper
Alloy
Strap
Electroplated
Electroplated
Tubular
Copper
Contact
Copper
Alloy
Strap
Electroplated
Tubular
Contact
6-32 Thd.
Slotted
Binding Hd.
Slot Size
Material
& Plating
Wire
Strip
Length
Wire
Range
AWG
Rec.
Torque
in. - lb.
1"
[25.4]
#6-250
375
kcmil (MCM)
NEMA Terminal
Blocks
1546152-1 Medium Duty
QC
& Tubular
Screw
3/4"-16 Hex 3/8" Hex
Socket Head [9.53]
Set Screw
Recommended
Screwdriver
Dimensions
Tip Thick Tip Width
3/8” Hex
KeyT-Bar
[9.53]
Screw
8
6
Note: Representative Catalog Numbers Listed.
295
Catalog 1308389
Revised 6-07
www.tycoelectronics.com
Dimensions are in millimeters
and inches unless otherwise
specified.
Dimensions are shown for
reference purposes only.
Specifications subject
to change.
USA: 1-800-522-6752
Canada: 1-905-470-4425
Mexico: 01-800-733-8926
C. America: 52-55-1106-0803
South America: 55-11-2103-6000
Hong Kong: 852-2735-1628
Japan: 81-44-844-8013
UK: 8706-080-208
Note: All part numbers
are RoHS Compliant.
BUCHANAN Terminal Blocks
UL 1059 Basic Voltage Rating
Voltage ratings of terminal blocks are based on the minimum spacing between electrical conductive parts of opposite
polarity or between an electrically conductive part and a metal mounting surface measured under two conditions: Through
Air, defined as the distance an arc must take through the air to go from one live conductor to another or from a live
conductor to ground; and Over Surface, defined as the distance an arc must take over a surface of the insulating material
going from one terminal to ground, assuming the arc will travel along the surface rather than through the air. The following
chart shows UL 1059 spacing requirements in inches.
Voltage Rating
Description
Voltage
Spacing Requirements
Over Surface
Thru Air
Class A
Service equipment including deadfront
switchboards, panel boards, service
entrance devices, etc.
51 - 150
151 - 300
251 - 600
1/2 [12.7]
3/4 [19.05]
1 [25.4]
3/4 [19.05]
1 1/4 [31.75]
2 [50.8]
Class B
Commercial appliances including
business equipment, electronic data
processing equipment and the like
51 - 150
151 - 300
251 - 600
1/16 [1.59]
3/32 [2.38]
3/8 [9.53]
1/16 [1.59]
3/32 [2.38]
1/2 [12.7]
Class C
General industrial and machine tools;
controls which can be further defined
as equipment falling under UL508
51 - 150
151 - 300
301 - 600
1/8 [3.18]
1/4 [6.35]
3/8 [9.53]
1/4 [6.35]
3/8 [9.53]
1/2 [12.7]
51 - 300
301 - 600
1/16 [1.59]
3/16 [4.76]
1/8 [3.18]
3/8 [9.53]
Devices having limited ratingsa
a
Load on any single circuit can not exceed 15 A at 51-150 V, 10 A at 151-300 V, 5 A at 301-600 V or the maximum current rating, whichever is less.
Standard Test Criteria
Test
Heat Cycling (term)
Static Heating (term)
Secureness
Pullout
Heating Test (block)
Dielectric Withstand
Strength of Base
Tab Pull
VPTA
Salt Spray
Solderability
Solvents
Per:
UL486E Section 10
UL486E Section 11
UL486E Section 12
UL486E Section 14
UL1059 Section 10
UL1059 Section 11
UL1059 Section 13
UL1059 Section 14
UL1059 Section 15
MIL-202 Method 101
MIL-202 Method 208
MIL-202 Method 215
296
Catalog 1308389
Revised 6-07
www.tycoelectronics.com
Dimensions are in millimeters
and inches unless otherwise
specified.
Dimensions are shown for
reference purposes only.
Specifications subject
to change.
USA: 1-800-522-6752
Canada: 1-905-470-4425
Mexico: 01-800-733-8926
C. America: 52-55-1106-0803
South America: 55-11-2103-6000
Hong Kong: 852-2735-1628
Japan: 81-44-844-8013
UK: 8706-080-208