Technical Data 10489
Effective February 2023
Supersedes December 2018
Class R 250 V and 600 V modular ferrule and
knifeblade fuse blocks
Knifeblade fuse blocks from 100 to 600 amps
feature phase barriers between poles for
additional safety with up to four mounting
holes per pole increase installation flexibility. All
knifeblade blocks meet UL creep and clearance
requirements for Industrial Power Circuits (UL
508 and UL 845).
Additionally, the 200 to 600 amp blocks meet
the higher UL creep and clearance requirements
for Power Distribution Standards (UL 98, UL 67,
UL 489, UL 891 and UL 869A)
All blocks have optional IP20 finger-safe high
clarity, see-through covers for inspecting wire
terminations or thermography measurements
without removal. All covers enhance safety by
featuring probe holes for easier, safer testing
and a lockout/tagout capability. These covers
also have optional open fuse indication to speed
troubleshooting.
Catalog symbol:
•
RM25_ (250 V)
•
RM60_ (600 V)
Easy circuit identification is available for 30 and
60 amp blocks and covers with universal marker
labels.
Specifications:
Ratings
•
Description:
Bussmann™ series Class R modular fuse blocks
increase versatility, reduce labor and enhance
safety for any panel or electrical system design.
Available for the full Class R fuse amp range.
These fuse blocks feature a standard fuse
clip reinforcing spring for enhanced electrical
contact between the block and fuse. All blocks
are available as single-pole versions that snap
together for the required number of poles, or
as factory configured 2-, and 3-pole versions to
meet stocking requirements.
The modular design permits reducing inventory,
assembly time and labor with tool-less assembly
of multiple poles at point of use.
Ferrule fuse blocks up to 60 amps save panel
space with the smallest width dimension on the
market and feature DIN-Rail and panel mount
versatility so that one product can be used for
multiple applications with lower inventory cost.
Volts
• 250 V
•
600 V
•
Amps up to 600
•
Withstand 200 kA RMS Sym.
Agency information
•
•
Blocks:
• UL® Listed E14853 — IZLT and IZLT7
•
CSA® Certified 47235-6225-01
•
CE
•
RoHS Compliant
•
REACH declaration available upon request
Covers:
• UL Listed E58836 - JDVS
•
CSA Certified 47235-6225-01 (30 and 60 A)
•
RoHS Compliant
•
REACH declaration available upon request
Technical Data 10489
Effective February 2023
Poles
•
1-, 2-, 3-pole units factory assembled
•
Single-pole units snap together to create desired number of
poles
Flammability ratings
•
Blocks: UL 94V0, self-extinguishing
•
Covers: UL 94HB, self-extinguishing
Class R 250 V and 600 V modular ferrule and
knifeblade fuse blocks
Optional see-through covers provide IP20 fingersafe protection and feature a lockout/tagout
provision to improve electrical safety.
These covers are also available with
open fuse indicating version for
faster troubleshooting. Order
separately, one cover
per block pole.
Operating and storage temperature range
•
Blocks -40°C to +120°C
•
Covers
•
Non-Indicating -40°C to +120°C
•
Indicating -20°C to +90°C*
* Indication requires minimum 90 V and closed circuit to illuminate.
Materials
•
Base: Thermoplastic
•
Terminals
• Tin-plated copper brass (30 and 60 A)
•
•
Tin-plated aluminum (box lug)
Covers: Thermoplastic
Conductors
•
Dual lugs on 600 A blocks
for easier wiring using
two, smaller conductors.
See catalog numbers for details and torque specifications
Class R ferrule fuse blocks
Class R knifeblade fuse blocks
30 and 60 amp ferrule fuse blocks have DIN-rail and panel mounting capability,
the modular designs allows blocks to snap together for the desired number of
poles. They accept optional snap-on covers for IP20 finger-safe protection and
feature a lockout/tagout to improve electrical safety.
100 to 600 amp knifeblade fuse blocks are panel mount with multiple holes for
installation flexibility and the modular design allows blocks to snap together
for the desired number of poles. They accept optional snap-on covers for
IP20 finger-safe protection and feature a lockout/tagout provision to improve
electrical safety.
2
Eaton.com/bussmannseries
Class R 250 V and 600 V modular ferrule and
knifeblade fuse blocks
Technical Data 10489
Effective February 2023
Table 1: Class R 250 V 30 and 60 amp block catalog numbers
Terminal type
Fuse
amp range
Up to 30
35 to 60
Optional covers*
Box lug/
slot screw
Box lug/
hex screw
#10-32 Phil-slot
screw
Screw with
quick-connect
Pressure plate
1
RM25030-1CR
RM25030-1CHR
RM25030-1SR
RM25030-1QR
RM25030-1PR
2
RM25030-2CR
RM25030-2CHR
RM25030-2SR
RM25030-2QR
RM25030-2PR
3
RM25030-3CR
RM25030-3CHR
RM25030-3SR
RM25030-3QR
RM25030-3PR
1
RM25060-1CR
RM25060-1CHR
2
RM25060-2CR
RM25060-2CHR
—
—
—
3
RM25060-3CR
RM25060-3CHR
Poles
Indicating**
Non-indicating
CVRI-RH-25030
CVR-RH-25030
CVRI-RH-25060
CVR-RH-25060
* Covers sold separately, order one cover per pole.
** Open fuse indication requires 90 volts minimum and closed circuit to operate.
Table 2: Class R 250 V 30 and 60 amp block terminals and
conductors
AWG type/
range
Terminal type
75°C
Cu 2-14,
AL 2-8
Box lug
#10-32 Phil-slot screw
Screw with quick-connect*
Pressure plate
75/90°C
Cu 10-18
AWG
2-3
Torque
N•m (lb-in)
5.6 (50)
4-6
5.1 (45)
8
4.5 (40)
10-14
4.0 (35)
10-18
2.3 (20)
* 3/16” Quick-connect terminal maximum ampacity dependent on female
spade connector and wire ratings.
Finger grips on
cover for easy
removal
Recommended Bussmann series fuses:
Description
Volts
Amps
Data
sheet no.
Ultimate protection time-delay
Low-Peak™ LPN
250 V
Up to 60
1003
Advanced protection fast-acting
Limitron™ KTN-R
250 V
All
1043
Advanced protection energy efficient
time-delay Fusetron™ FRN-R
250 V
Up to 60
1019
Recommended accessories for 30 and 60 amp blocks:
Description
DIN-Rail end stops
Catalog no.
BRKT-ND
BRKT-NDSCREW2
Optional see through, snapon cover for easy visual
inspection
Optional open fuse indication
speeds troubleshooting
Standard phase
barriers for additional
safety
Tool-less interlocking modular
design for easy point-of-use
assembly
Vent slots improve cooling*
Lockout/tagout feature
improves safety
Probe holes for easy testing
without removing cover
DIN-rail or panel mounting on each
pole provides installation flexibility
*No fuse derating necessary.
Eaton.com/bussmannseries
3
Technical Data 10489
Class R 250 V and 600 V modular ferrule and
knifeblade fuse blocks
Effective February 2023
Dimensions; 30 A, 250 V Class R block - in (mm)
50
2.0
26
1.0
80
3.2
RM25030-1CR
RM25030-2CR
25
1.0
49
1.9
PROVISION FOR MARKER LABEL
15
.6
25
1.0
PROVISION FOR MARKER LABEL
CVR-RH-25030
(NON-INDICATING)
CVRI-RH-25030
(WITH INDICATION)
75
2.9
99
3.9
RM25030-3CR
74
2.9
LOCKOUTTAGOUT RING
45
1.8
4
Eaton.com/bussmannseries
51
2.0
Class R 250 V and 600 V modular ferrule and
knifeblade fuse blocks
Technical Data 10489
Effective February 2023
Dimensions; 60 A, 250 V Class R block - in (mm)
RM25060-1CR
7
.3
4
.2
3
.1
108
4.2
35
1.4
32
1.2
6
.2
34
1.3
69
2.7
68
2.7
RM25060-2CR
103
4.1
47
1.8
58
2.3
34
1.3
19
.7
PROVISION FOR
MARKER LABEL
135
5.3
RM25060-3CR
103
4.1
102
4.0
LOCKOUT TAGOUT RING
CVR-RH-25060
(NON INDICATING)
CVRI-RH-25060
(WITH INDICATION)
Eaton.com/bussmannseries
5
Technical Data 10489
Class R 250 V and 600 V modular ferrule and
knifeblade fuse blocks
Effective February 2023
Installing/removing covers
For larger conductors, trim center tab
at notch as show in detail A.
Install cover:
Position cover
over block and
push straight
down until it
snaps/clicks
into place.
Trim tab
here
A
Open cover:
Using both
outside handles,
pull straight up.
Detail A
Installing blocks on DIN-Rail
Place one edge of DIN-Rail in fuse block base, then rotate block down until it clicks into place.
6
Eaton.com/bussmannseries
Class R 250 V and 600 V modular ferrule and
knifeblade fuse blocks
Technical Data 10489
Effective February 2023
Table 3: Class R 250 V 100 to 600 amp knifeblade blocks and covers
Covers*
Fuse
amp
range
Catalog nos.
1
70-100
110-200
225-400
450-600
2
Indicating**
Conductors***
Non-indicating
RM25100-1CR
RM25100-2CR
CVRI-RH-25100
CVR-RH-25100
Fine stranded
—
Cu 1-3 AWG
6.2 (55)
1/0-3 AWG; (2) Cu 4-6 AWG
Cu 4-6 AWG
5.6 (50)
2 4-6 AWG; (2) Cu 8 AWG
Cu 8 AWG
5.1 (45)
8 AWG; (2) Cu 10-14 AWG
—
4.5 (40)
Cu 10-14 AWG; Al 10-12 AWG
—
4.0 (35)
250 kcmil-1 AWG
Cu 3/0-1 AWG
42 (375)
2-6 AWG; (2) Cu 2-6 AWG
Cu 2-6 AWG
31 (275)
3
RM25100-3CR
1
RM25200-1CR
2
RM25200-2CR
3
RM25200-3CR
1
RM25400-1CR
600 kcmil
2
RM25400-2CR
500 kcmil-4 AWG
3
RM25400-3CR
1
RM25600-1CR
2
RM25600-2CR
3
RM25600-3CR
CVRI-RH-25200
CVRI-RH-25400
CVR-RH-25200
CVR-RH-25400
57 (500)
51 (450)
N/A
(2) Cu 3/0 - 4 AWG
57 (500)
(2) Al 3/0 - 4 AWG
CVRI-RH-25600
CVR-RH-25600
Torque
N•m (lb-in)
Solid and stranded
34 (300)
2 (2) 500 kcmil-4 AWG
N/A
51 (450)
* Covers sold separately, order one cover per pole.
** Open fuse indication requires 90 volts minimum and closed circuit to operate.
*** Ratings for copper and aluminum conductors except where otherwise noted.
Recommended Bussmann series fuses:
Description
Volts
Amps
Data sheet no.
Ultimate protection time-delay Low-Peak™ LPN
250 V
70 to 600
1004
Advanced protection fast-acting Limitron™ KTN-R
250 V
All
1043
Advanced protection energy efficient time-delay Fusetron™ FRN-R
250 V
70 to 600
1020
Probe holes for easy testing
without removing cover
Finger grips on
cover for easy
removal
Standard phase
barriers for additional
safety
Multiple mounting holes for
each pole provide flexible,
secure mounting
Tool-less interlocking modular
design for easy point-of-use
assembly
*No fuse derating necessary.
Optional see through, snap-on
cover for easy visual inspection
Optional open fuse indication
speeds troubleshooting
Vent slots improve
cooling*
Lockout/tagout feature
improves safety
Finger-safe wire entry
with cutout tabs for
larger wires on all
versions
Dual lugs on 600 A blocks
for easier wiring using two,
smaller conductors.
Eaton.com/bussmannseries
7
Technical Data 10489
Class R 250 V and 600 V modular ferrule and
knifeblade fuse blocks
Effective February 2023
Dimensions; 100 A, 250 V Class R block - in (mm)
1
.0
171
6.7
61
2.4
61
2.4
55
2.2
14
.6
102
4.0
51
2.0
22
.9
51
2.0
103
4.1
ALLEN KEY #:
3/16"(5.5MM)
1
.0
7
.3
13
.5
103
4.1
ALLEN KEY #:
3/16"(5.5MM)
8
14
.6
22
.9
38
1.5
38
1.5
7
.3
13 8
.5
51
2.0
35
1.4
35
1.4
RM25100-1CR
RM25100-2CR
171
6.7
61
2.4
14
.6
22
.9
72
2.8
55
2.2
51
2.0
171
6.7
153
6.0
184
7.2
51
2.0
38
1.5
51
2.0
35
1.4
RM25100-3CR
8
7
.3
13 8
.5
103
4.1
ALLEN KEY #:
3/16"(5.5MM)
Eaton.com/bussmannseries
51
2.0
67
2.6
69
2.7
182
7.2
WITH OPTIONAL COVER
70
2.8
Class R 250 V and 600 V modular ferrule and
knifeblade fuse blocks
Technical Data 10489
Effective February 2023
Dimensions; 200 A, 250 V Class R block - in (mm)
ALLEN KEY #:
3/8"(10.0MM)
70
2.7
68
2.7
16
.6
9
.3
ALLEN KEY #:
3/8"(10.0MM)
68
2.7
70
2.7
16
.6
19
.8
19 12
.8
35
1.4
116
4.6
9
.3
35
1.4
136
5.3
8
.3
68
2.7
33
1.3
116
4.6
12
45
1.8
35
1.4
45
1.8
47
1.8
47
1.8
RM25200-1CR
ALLEN KEY #:
3/8"(10.0MM)
68
2.7
RM25200-2CR
70
2.7
68
2.7
16
.6
8
.3
96
3.8
9
.3
203
8.0
19
.8
8
.3
207
8.1
35
1.4
221
8.7
33
1.3
12
35
1.4
33
1.3
75
3.0
94
3.7
91
3.6
35
1.4
116
4.6
220
8.7
WITH OPTIONAL COVER
45
1.8
47
1.8
68
2.7
68
2.7
RM25200-3CR
Eaton.com/bussmannseries
9
Technical Data 10489
Class R 250 V and 600 V modular ferrule and
knifeblade fuse blocks
Effective February 2023
Dimensions; 400 A, 250 V Class R block - in (mm)
21
.8
80
3.2
80
3.1
ALLEN KEY #:1/2"
9
.3
80
3.1
ALLEN KEY #:1/2"
21
.8
80
3.2
50
2.0
8
.3
42
1.7
185
7.3
50
2.0
92
3.6
50
2.0
19
.8
9
.3
19
.8
16
129
5.1
16
129
5.1
71
2.8
71
2.8
92
3.6
44
1.7
44
1.7
RM25400-2CR
RM25400-1CR
80
3.1
21
.8
80
3.2
50
2.0
277
10.9
121
4.8
42
1.7
50
2.0
105
4.1
241
9.5
42
1.7
254
10.0
ALLEN KEY #:1/2"
50
2.0
9
.3
19
.8
71
2.8
92
3.6
44
1.7
RM25400-3CR
10
258
10.1
129
5.1
16
Eaton.com/bussmannseries
116
4.6
113
4.5
WITH OPTIONAL COVER
92
3.6
8
.3
Class R 250 V and 600 V modular ferrule and
knifeblade fuse blocks
Technical Data 10489
Effective February 2023
Dimensions; 600 A, 250 V Class R block - in (mm)
107
4.2
8
.3
107
4.2
91
3.6
125
4.9
9
.3
19 16
.8
155
6.1
50
2.0
250
9.9
19
.8
75
2.9
75
2.9
9
.3
25
1.0
25
1.0
91
3.6
16
75
2.9
29
1.1
97
3.8
78
3.1
43
1.7
ALLEN KEY
#: 3/8” (10.0mm)
155
6.1
ALLEN KEY #:3/8"(10.0MM)
29
1.1
43
1.7
29
1.1
78
3.1
RM25600-2CR
RM25600-1CR
107
4.2
25
1.0
91
3.6
75
2.9
50
2.0
91
3.6
16
155
6.1
29
1.1
78
3.1
ALLEN KEY #:3/8"(10.0MM)
29
1.1
97
3.8
303
11.9
141
5.6
138
5.4
75
2.9
9
.3
135
5.3
151
6.0
289
11.4
75
2.9
375
14.8
19
.8
50
2.0
307
12.1
WITH OPTIONAL COVER
29
1.1
97
3.8
43
1.7
RM25600-3CR
Eaton.com/bussmannseries
11
Technical Data 10489
Class R 250 V and 600 V modular ferrule and
knifeblade fuse blocks
Effective February 2023
Table 4: Class R 600 V 30 and 60 amp block catalog numbers
Terminal type
Fuse
amp range
Box lug/
hex screw
#10-32
Phil-slot screw
Pressure plate
1
RM60030-1CR
RM60030-1CHR
RM60030-1SR
RM60030-1PR
2
RM60030-2CR
RM60030-2CHR
RM60030-2SR
RM60030-2PR
3
RM60030-3CR
RM60030-3CHR
RM60030-3SR
RM60030-3PR
1
RM60060-1CR
RM60060-1CHR
2
RM60060-2CR
RM60060-2CHR
—
—
3
RM60060-3CR
RM60060-3CHR
Poles
Up to 30
35 to 60
Optional covers*
Box lug/
slot screw
Indicating**
Non-indicating
CVRI-RH-60030
CVR-RH-60030
CVRI-RH-60060
CVR-RH-60060
* Covers sold separately, order one cover per pole.
** Open fuse indication requires 90 volts minimum and closed circuit to operate.
Table 5: Class R 600 V 30 and 60 amp block terminals and
conductors
Terminal type
AWG type/range
75°C
Cu 2-14,
AL 2-8
Box lug
#10-32 Phil-slot screw
Pressure plate
75/90°C
Cu 10-18
AWG
Torque
N•m (lb-in)
2-3
5.6 (50)
4-6
5.1 (45)
8
4.5 (40)
10-14
4.0 (35)
10-18
2.3 (20)
Recommended Bussm ann series fuses:
Description
Volts
Amps
Data sheet
no.
Ultimate protection time-delay
Low-Peak LPS
600 V
Up to 60
1001
Advanced protection fast-acting
Limitron KTS-R
600 V
All
1044
Advanced protection energy efficient
time-delay Fusetron FRS-R
600 V
Up to 60
1017
Recommended accessories for 30 and 60 amp blocks:
Description
Catalog no.
DIN-Rail end stops
Finger grips on cover
for easy removal
Standard phase
barriers for additional
safety
Tool-less interlocking modular design
for easy point-of-use assembly
BRKT-ND
BRKT-NDSCREW2
Optional see through, snap-on cover
for easy visual inspection
Optional open fuse indication
speeds troubleshooting
Vent slots improve
cooling*
Lockout/tagout feature
improves safety
Probe holes for easy testing
without removing cover
*No fuse derating necessary.
12
Eaton.com/bussmannseries
DIN-rail or panel mounting on
each pole provides installation
flexibility
Class R 250 V and 600 V modular ferrule and
knifeblade fuse blocks
Technical Data 10489
Effective February 2023
Dimensions; 30 A, 600 V Class R block - in (mm)
30 1.16
59
7
2.32
.28
13
.50
RM60030-1CR
4
.16
PROVISION FOR
MARKING LABEL
159
6.25
RM60030-2CR
2
.08
31
1.21
2
.08
60
2.37
29
1.16
CL
46
1.80
58
2.28
PROVISION FOR
MARKING LABEL
88
3.48
RM60030-3CR
80
3.13
90
3.53
183
7.21
CVR-RH-60030
(NON-INDICATING)
CVRI-RH-60030
(WITH INDICATION)
LOCKOUT TAGOUT RING
Eaton.com/bussmannseries
13
Technical Data 10489
Class R 250 V and 600 V modular ferrule and
knifeblade fuse blocks
Effective February 2023
Dimensions; 60 A, 600 V Class R block - in (mm)
7
.3
8
.3
RM60060-1CR
3
.1
5
.2
39
1.6
172
RM60060-2CR
6.8
77
3.0
38
1.5
54
2.1
77
3.0
66
2.6
17
.7
38
1.5
PROVISION FOR
MARKER LABEL
82
3.2
RM60060-3CR
116
4.6
CVR-RH-60060
(NON-INDICATING)
CVRI-RH-60060
(INDICATING)
202
8.0
115
4.5
LOCKOUT TAGOUT RING
14
Eaton.com/bussmannseries
Class R 250 V and 600 V modular ferrule and
knifeblade fuse blocks
Technical Data 10489
Effective February 2023
Installing/removing covers
For larger conductors, trim center tab
at notch as show in detail A.
Install cover:
Position cover
over block and
push straight
down until it
snaps/clicks
into place.
Trim tab
here
A
Open cover:
Using both
outside handles,
pull straight up.
Detail A
Installing blocks on DIN-Rail
Place one edge of DIN-Rail in fuse block base, then rotate block down until it clicks into place.
Eaton.com/bussmannseries
15
Technical Data 10489
Class R 250 V and 600 V modular ferrule and
knifeblade fuse blocks
Effective February 2023
Table 6: Class R 600 V 100 to 600 amp knifeblade blocks and covers
Fuse
amp
range
Covers*
Poles
1
70-100
110-200
225-400
450-600
Catalog nos.
Conductors***
Indicating**
Non-indicating
RM60100-1CR
CVRI-RH-60100
CVR-RH-60100
Torque
N•m (lb-in)
Solid and stranded
Fine stranded
—
Cu 1-3 AWG
6.2 (55)
1/0-3 AWG; (2) Cu 4-6 AWG
Cu 4-6 AWG
5.6 (50)
2 4-6 AWG; (2) Cu 8 AWG
Cu 8 AWG
5.1 (45)
4.5 (40)
2
RM60100-2CR
8 AWG; (2) Cu 10-14 AWG
—
3
RM60100-3CR
Cu 10-14 AWG; Al 10-12 AWG
—
4.0 (35)
1
RM60200-1CR
250 kcmil-1 AWG
Cu 3/0-1 AWG
42 (375)
2
RM60200-2CR
3
RM60200-3CR
2-6 AWG; (2) Cu 2-6 AWG
Cu 2-6 AWG
31 (275)
1
RM60400-1CR
600 kcmil
2
RM60400-2CR
500 kcmil-4 AWG
3
RM60400-3CR
1
RM60600-1CR
2
RM60600-2CR
3
RM60600-3CR
CVRI-RH-60200
CVRI-RH-60400
CVR-RH-60200
CVR-RH-60400
57 (500)
51 (450)
N/A
(2) Cu 3/0 - 4 AWG
57 (500)
(2) Al 3/0 - 4 AWG
CVRI-RH-60600
CVR-RH-60600
34 (300)
2 (2) 500 kcmil-4 AWG
N/A
51 (450)
* Covers sold separately.
** Open fuse indication requires 90 volts minimum and closed circuit to operate.
*** Ratings for copper and aluminum conductors except where otherwise noted.
Recommended Bussmann series fuses:
Description
Volts
Amps
Ultimate protection time-delay Low-Peak LPS
600 V
70 to 600
1004
Advanced protection fast-acting Limitron KTS-R
600 V
All
1044
Advanced protection energy efficient time-delay Fusetron FRS-R
600 V
70 to 600
1018
Probe holes for easy testing
without removing cover
Finger grips on
cover for easy
removal
Optional see through,
snap-on cover for easy
visual inspection
Data sheet no.
Optional open fuse indication
speeds troubleshooting
Vent slots improve
Standard phase
barriers for
additional safety
Lockout/tagout feature
improves safety
Multiple mounting holes for
each pole provide flexible,
secure mounting
Finger-safe wire entry
with cutout tabs for
larger wires on all
versions
Tool-less interlocking modular
design for easy point-of-use
assembly
*No fuse derating necessary.
16
Eaton.com/bussmannseries
Dual lugs on 600 A blocks
for easier wiring using two,
smaller conductors
Class R 250 V and 600 V modular ferrule and
knifeblade fuse blocks
Technical Data 10489
Effective February 2023
Dimensions; 100 A, 600 V Class R block - in (mm)
ALLEN KEY
#:3/16"(5.5MM)
ALLEN KEY
#:3/16"(5.5MM)
14
.6
55
2.2
112
4.4
1
.0
51
2.0
22
.9
112
4.4
102
4.0
51
2.0
7
.3
13 8
.5
13
.5
38
1.5
8
51
2.0
35
1.4
35
1.4
RM60100-2CR
RM60100-1CR
14
.6
22
.9
55
2.2
112
4.4
72
2.8
51
2.0
153
6.0
234
9.2
13
.5
51
2.0
68
2.7
67
2.6
7
.3
154
6.1
55
2.2
222
8.7
51
2.0
38
1.5
7
.3
154
6.1
38
1.5
ALLEN KEY
#:3/16"(5.5MM)
14
.6
22
.9
55
2.2
8
70
2.8
233
9.2
WITH OPTIONAL COVER
51
2.0
35
1.4
RM60100-3CR
Eaton.com/bussmannseries
17
Technical Data 10489
Class R 250 V and 600 V modular ferrule and
knifeblade fuse blocks
Effective February 2023
Dimensions; 200 A, 600 V Class R block - in (mm)
ALLEN KEY
#:3/8"(10.0MM)
ALLEN KEY
#:3/8"(10.0MM)
70
2.7
131
5.2
8
.3
179
7.1
32
1.2
9
.3
12
19
.8
35
1.4
179
7.1
12
46
1.8
67
2.6
45
1.8
45
1.8
RM60200-1CR
9
.3
12
131
5.2
RM60200-2CR
70
2.7
16
.6
96
3.8
75
3.0
35
1.4
32
1.2
200
7.9
271
10.7
35
1.4
285
11.2
32
1.2
179
7.1
ALLEN KEY
#:3/8"(10.0MM)
67
2.6
67
2.6
45
1.8
RM60200-3CR
18
35
1.4
67
2.6
46
1.8
46
1.8
16
.6
35
1.4
9
.3
19
.8
70
2.7
16
.6
67
2.6
19
.8
131
5.2
Eaton.com/bussmannseries
35
1.4
92
3.6
89
3.5
284
11.2
WITH OPTIONAL COVER
Class R 250 V and 600 V modular ferrule and
knifeblade fuse blocks
Technical Data 10489
Effective February 2023
Dimensions; 400 A, 600 V Class R block - in (mm)
ALLEN KEY #:1/2"
ALLEN KEY #:1/2"
80
3.2
156
6.2
8
.3
9
.3
21
.8
9
.3
50
2.0
185
7.3
92
3.6
19
.8
50
2.0
206
8.1
42
1.7
16
92
3.6
71
2.8
44
1.7
44
1.7
71
2.8
RM60400-2CR
RM60400-1CR
156
6.2
80
3.2
21
.8
50
2.0
42
1.7
121
4.8
50
2.0
105
4.1
317
12.5
277
10.9
330
13.0
42
1.7
ALLEN KEY
#:1/2"
50
2.0
116
4.6
113
4.5
334
13.2
206
8.1
9
.3
71
2.8
50
2.0
206
8.1
16
19
.8
19
.8
21
.8
80
3.2
156
6.2
WITH OPTIONAL COVER
16
92
3.6
92
3.6
44
1.7
RM60400-3CR
Eaton.com/bussmannseries
19
Technical Data 10489
Class R 250 V and 600 V modular ferrule and
knifeblade fuse blocks
Effective February 2023
Dimensions; 600 A, 600 V Class R block - in (mm)
184
7.2
25
1.0
91
3.6
75
2.9
25
1.0
91
3.6
184
7.2
8
.3
125
4.9
ALLEN KEY #:
3/8"(10.0MM)
250
9.9
ALLEN KEY #:
3/8"(10.0MM)
9
.3
19
.8
50
2.0
91
3.6
75
2.9
231
9.1
16
9
.3
19
.8
75
2.9
231
9.1
16
97
3.8
29
1.1
78
3.1
29
1.1
43
1.7
43
1.7
78
3.1
29
1.1
RM60600-2CR
RM60600-1CR
184
7.2
91
3.6
25
1.0
75
2.9
50
2.0
151
6.0
135
5.3
366
14.4
91
3.6
ALLEN KEY #:
3/8"(10.0MM)
379
14.9
75
2.9
50
2.0
9
.3
19
.8
78
3.1
16
29
1.1
97
3.8
RM60600-3CR
Eaton.com/bussmannseries
383
15.1
WITH OPTIONAL COVER
29
1.1
43
1.7
20
75
2.9
231
9.1
142
5.6
139
5.5
97
3.8
29
1.1
Technical Data 10489
Class R 250 V and 600 V modular ferrule and
knifeblade fuse blocks
Effective February 2023
The only controlled copy of this data sheet is the electronic read-only version located on the Eaton network drive. All other copies of this document
are by definition uncontrolled. This bulletin is intended to clearly present comprehensive product data and provide technical information that
will help the end user with design applications. Eaton reserves the right, without notice, to change design or construction of any products and
to discontinue or limit distribution of any products. Eaton also reserves the right to change or update, without notice, any technical information
contained in this bulletin. Once a product has been selected, it should be tested by the user in all possible applications.
Eaton
1000 Eaton Boulevard
Cleveland, OH 44122
Eaton.com
For Eaton’s Bussmann series
product information,
call 1-855-287-7626 or visit:
Eaton.com/bussmannseries
Bussmann Division
114 Old State Road
Ellisville, MO 63021
United States
Eaton.com/bussmannseries
© 2023 Eaton
All Rights Reserved
Printed in USA
Publication No. 10489 — BU-MC16XXX
February 2023
Eaton and Bussmann are valuable trademarks of Eaton in the U.S. and other
countries. You are not permitted to use the
Eaton trademarks without prior written consent of Eaton.
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