®
Amphenol Heavy Duty
Cylindrical Connectors
12-052-9
Amphenol
®
Amphenol Heavy Duty
Cylindrical Connectors
MIL-C-22992/Proprietary
• High Current Capacity
• Rugged Construction
• Safety
• Serviceability
Amphenol meets the demands for heavy duty connectors by
providing three cylindrical connector series, each with unique
design characteristics for reliable operation in specific industrial environments.
Class “L” – for the heaviest electrical loads (Pages 2 – 19)
• Current range from 40 to 200 amperes
• Direct current or single/three phase, 60/400 Hertz alternating current
• Automatic grounding for safety
• MIL-C-22992 qualification
QWLD – for most power and control circuits (Pages 21 – 77)
• Military (MIL-C-22992) qualified connectors and industrial
equivalents available
• Increased shell size for greater durability than similar standard connectors
QWL – a more compact heavy duty design for industrial power and control applications
(Page 78, references Amphenol Catalog 12-053)
These three series share the following common characteristics which are critical to reliable heavy
duty connectors:
• Resistance to the operating environment. Refer to environmental data, below.
• Double stub coupling threads for faster connections; no cross threading, easy cleaning.
• Left hand accessory threads to minimize cable twisting, wire breakage, accidental connector
disassembly.
• Gaskets or O-rings at appropriate surfaces for perfect weathertight connections.
Amphenol® heavy duty connectors have been exposed to the following environmental conditions,
without compromise of mechanical integrity or degradation of electrical performance.
Condition
Configuration
Description
Reference
Thermal Shock
Unmated
Five complete one hour temperature cycles of
–55°C to +125°C
MIL-STD-1344, method
1003, test condition A
Moisture Resistance
(Cable mounted connectors)
Mated
Ten complete 24 hour cycles of +25°C to
+65°C temperature at 90% to 98% humidity
MIL-STD-202, method 106
Durability
Mated
500 complete mating/unmating cycles
MIL-C-22992
Salt Spray
(Corrosion)
Unmated
48 hour exposure to atomized 5%
saline solution at +35°C
MIL-STD-1344,
method 1001
Vibration
Mated
10 to 55 Hz, .06 inch total excursion
in 1 minute cycles for 6 hours, 55 to
2000 Hz, 10G peak amplitude sweep
MIL-STD-1344,
method 2005
High Impact
Mated
Nine hammer blows from 1, 3 and 5 feet,
three each in three axes on mounting panel
MIL-STD-202,
method 207
Heat Rise (Class L only)
Mated
Maximum rated DC current for four
hours at +25°C in still air
MIL-C-22992
Fluid Immersion
Unmated
20 hours immersion in hydraulic
fluid and lubricating oil
MIL-C-22992
Water Immersion
Mated and
Unmated
4 hours immersion at 1 atmosphere
pressure differential
MIL-C-22992
1
®
Amphenol Heavy Duty
Cylindrical Connectors
MIL-C-22992, Class L
The Amphenol® Class L* heavy
duty connectors are the largest
size cylindricals, highly suitable for
industrial or military applications,
and designed to meet the demands
of heavy power interconnections.
The design features of this connector series provide:
wall mount receptacle (power source)
• Greatest Capacity current ranges 40 to 200 amps,
conductor sizes 6 to 4/0
• Safety complete protection of personnel
and equipment if connectors are
inadvertently disconnected under
load
• Foolproof Mating design incorporates specific voltage, current, frequency, phase and
grounding requirements
straight plug
• Standardization MIL-C-22992 Class L insert
arrangements specify connector/
cable combinations for maximum
reliability
• Serviceable Contacts contacts are normally crimped to
the cable before connector assembly. No insertion tools required.
Bushings are available to adapt
smaller diameter wires to larger
contacts
cable connecting receptacle without
coupling ring
wall mount plug with
coupling ring (equipment end)
2
* Amphenol design is covered by one or more of the
following U. S. Patent Numbers:
3,023,396; 3,221,292.
®
Amphenol Heavy Duty
Cylindrical Connectors
MIL-C-22992, Class L
Other outstanding design features:
Class L connectors are available only in the specific configurations prescribed by MIL-C-22992 for either military
or industrial applications. This rigid configuration control
assures correct interconnection of electrical circuits for
maximum safety and reliability. Controlled parameters
include:
Arc quenching design - recessed socket contacts within
the insert create an arc suppressing chamber which protects the user when connectors are separated under
load.
Programmed coupling sequence - grounding and neutral contacts engage before power contacts.
Connector shell style and contact type - wall mount
and cable connecting receptacles are supplied with
socket contacts only and always lead from the power
source. Plugs (with coupling rings) have pin contacts only
and always lead to the equipment end.
Waterproof design - a unique combination of grommets
and seals provides waterproofing in any condition mated or unmated, capped or uncapped.
Rugged construction - machined from high strength
aluminum. Straight-line attachment of accessories eliminates possibility of cable twisting or misalignment.
Shell size - the direct relationship of shell size to current
carrying capability reduces the possibility of inadequate
wiring for heavy electrical loads.†
Shell Size
Current Rating
(Amperes)
Accessories - supplied with all Class L connectors as
indicated on the individual connector descriptions.
Replacement accessories may be ordered separately.
See pages 12 through 15.
Contact Size
28
40
32
60
6
4
44
100
1/0
52
200
4/0
Keyway position - four positions of the main keyway are
used to discriminate between the following power
sources:
two wire D.C
two wire single phase A.C.
three wire single phase A.C.
four wire three phase A.C.
Insert rotation - when carrying alternating current (A.C),
different angular rotations of the insert within the connector shell are used to distinguish between 60 Hertz and
400 Hertz circuits.
† MIL-C-22992 includes shell size 48, rated at 150 amperes. Consult your local
Amphenol sales representative or Amphenol, Sidney, NY for availability.
3
MIL-C-22992, Class L
how to order
Connectors are supplied with removable contacts unassembled and applicable accessories as listed in the individual connector style descriptions,
pages 8 through 11. Additional/replacement contacts or accessories may be
ordered by their MS designations.
Connectors are ordered by MS designation. To illustrate the ordering procedure, part number MS90555 C32412SY is shown as follows:
PART NUMBER
MS90555
C
32
4 12
S
Y
1
2
3
4
6
7
5
1. MS Number MS90555 designates wall mount receptacle (power source)
MS90556 designates straight plug
MS90557 designates cable connecting receptacle without coupling ring
MS90558 designates wall mount plug with coupling ring (equipment end)
2. Shell Finish - C (conductive) for AC or N (nonconductive) for DC circuits.
Grounding Assemblies: Finish C
Non-grounding Assemblies: Finish N
Shell Master Key/Keyway Position
60Hz & 400Hz
1 Phase
2 Wire
Shell Master/Key
Keyway Position
3 Phase
3 Wire
3 Wire
DC
4 Wire
Shell
Size
Current
Rating
Amps
120 VAC
240 VAC
120/240
VAC
450/480
VAC
120/208
VAC
240/416
VAC
277/480
VAC
28
40
4 (120°)
5 (135°)
4 (120°)
---
4 (120°)
5 (135°)
32
60
4 (120°)
5 (135°)
4 (120°)
---
4 (120°)
44
100
4 (120°)
---
4 (120°)
1 (60°)
4 (120°)
52
200
---
---
4 (120°)
---
4 (120°)
Shell
Size
Current
Rating
Amps
28 VDC
6 (150°)
28
40
N (105°)
5 (135°)
6 (150°)
32
60
N (105°)
5 (135°)
6 (150°)
44
100
N (105°)
5 (135°)
6 (150°)
52
200
N (105°)
3. Shell Size - related directly to current carrying capability.
Size 28 40 amperes
Size 32 60 amperes
Size 44 - 100 amperes
Size 52 - 200 amperes
2 Wire
MASTER KEY/KEYWAY POSITION
6
4. Master Key/Keyway Position - N designates normal position. Positions
1, 4, 5 and 6 of the master key/keyway prevent cross-mating of incompatible voltages. Refer to the adjacent illustration.
5. Insert Arrangement - determined by connector size (current carrying
capability) and cable configuration to be accommodated. Refer to pages 5
& 6.
6. Contact Type - P for pin, S for socket. MS90555 and MS90557 are supplied with socket contacts only. MS90556 and MS90558 are supplied with
pin contacts only.
7. Alternate Insert Rotation - used to prevent cross-mating of incompatible
frequencies. Absence of a letter in this space indicates normal (0°) position of the insert. Refer to page 7.
4
5
MASTER
KEYWAY
4
N
Normal
1
15
REF
TYPICAL
SOCKET
front face of receptacle shown
ARRANGEMENT
Note that insert arrangement does not
rotate with master key/keyway
Amphenol Federal Vendor Identification
FSCM77820
MIL-C-22992, Class L
contact arrangements
Shell Size 28, 40 amp rating
Cable:
28-12
IPCEA, type G, round, four #8 conductors
28-13
CO-04 HDF, (4/6-4/12R) 1090
per MIL-C-3432
A N
C
Contacts:
B
Size
Pin
M39029/48
Socket
M39029/49
A, B, C
6
-317
-329
N, G
6N
-318
-329
Position
G
28-12, 28-13
Three phase AC, 4 wire, grounding
Shell Size 32, 60 amp rating
Cable:
32-04
IPCEA, type G, round, two #6 conductors
32-05
CO-02 HDF, (2/4-2/8R) 1100
per MIL-C-3432
G1
N
Contacts:
A
Position
Shell Size 32, 60 amp rating
A
Pin
M39029/48
Socket
M39029/49
A
4
-320
-331
N
4N
-321
-331
G1, G2
6N
-318
-329
G2
32-04, 32-05
Single phase AC, 2 wire, grounding
Size
Cable:
32-12
IPCEA, type G, round, four #6 conductors
32-13
CO-04 HDF, (4/4-4/12R) 1290
per MIL-C-3432
N
Contacts:
C
B
Size
Pin
M39029/48
Socket
M39029/49
A, B, C
4
-320
-331
N
4N
-321
-331
G
6N
-318
-329
Position
G
32-12, 32-13
Three phase AC, 4 wire, grounding
Shell Size 44, 100 amp rating
Cable:
44-02
IPCEA, type W, round, two #2 conductors
44-03
CO-02 HDF, (2/1) 1385
per MIL-C-3432
A
Contacts:
Size
Pin
M39029/48
Socket
M39029/49
A
1/0-1
-323
-333
N
1/0N-1
-324
-333
Position
N
44-02, 44-03
28 Volts DC, 2 wire
IPCEA – Insulated Power Cable Engineers Association
5
CONTACT LEGEND
6
4
1/0
4/0
MIL-C-22992, Class L
contact arrangements
Shell Size 44, 100 amp rating
Cable:
44-12
IPCEA, type G, round, four #2 conductors
44-13
CO-04 HDF, (4/1-4/8R) 1620
per MIL-C-3432
A
Contacts:
G4
G1
C
N
G3
Size
Pin
M39029/48
Socket
M39029/49
A, B, C
1/0-1
-323
-333
N
1/0N-1
-324
-333
G1, G2, G3, G4
6G
-319
-330
Position
G2
B
44-12, 44-13
Three phase AC, 4 wire, grounding
Shell Size 44, 100 amp rating
For Navy Ground Support Equipment use only.
44-50
Available in MS90555 & MS90558 only
4 each # 1 conductors
Cable:
A
G
44-51
Available in MS90556 & MS90557 only
IPCEA, type W, round, four # 1 conductors
44-52
Available in MS90556 only
IPCEA, type W, round, four # 2 conductors
44-56
Available in MS90556 only
IPCEA, type W, round, four # 6 conductors
B
Contacts:
C
Size
Pin
M39029/48
Socket
M39029/49
A, B, C
1/0-1
-323
-333
G
1/0N-1
-324
-333
Position
44-50, 44-51, 44-52, 44-56
Three phase AC, 3 wire, grounding
Shell Size 52, 200 amp rating
Cable:
52-12
IPCEA, type G, round, four #4/0 conductors
52-13
CO-04 HDE, (4/0000-4/4R) 2380
per MIL-C-3432
A
Contacts:
G4
G1
C
N
G3
Size
Pin
M39029/48
Socket
M39029/49
A, B, C
4/0
-327
-335
N
4/0N
-328
-335
G1, G2, G3, G4
4G
-322
-332
Position
G2
B
52-12, 52-13
Three phase AC, 4 wire, grounding
IPCEA – Insulated Power Cable Engineers Association
6
CONTACT LEGEND
6
4
1/0
4/0
MIL-C-22992, Class L
alternate insert rotations
To avoid cross-plugging problems in applications requiring
the use of more than one connector of the same size and
arrangement, alternate insert rotations are available as
indicated in the accompanying chart.
As shown in the diagram below, the front face of the pin
insert is rotated within the shell in a clockwise direction
from the normal shell key. The socket insert would be
rotated counterclockwise the same number of degrees in
respect to the normal shell key.
B
A
Position X
B
A
A
B
A
B
Position W
Position Y
Position Z
Views looking into front face of pin insert or rear of socket insert.
Insert
Arrangements
Keying Position
(degrees from normal position)
400 Hz
DC or 60 Hz
Normal
W
X
Y
Z
28-12
0
–
–
180
–
28-13
0
–
–
180
–
32-04
0
–
90
–
–
32-05
0
–
90
–
–
32-12
0
–
–
180
–
32-13
0
–
–
180
–
44-12
0
–
–
–
60
44-13
0
–
–
–
60
44-50
0
–
–
–
–
44-51
0
–
–
–
–
44-52
0
–
–
–
–
44-56
0
–
–
–
–
52-12
0
300
–
–
–
52-13
0
300
–
–
–
7
MIL-C-22992, Class L
MS90555
wall mount receptacle (power source)
F*
J
S
+.011
–.010
.312
.531
MIN
FULL
THD
R
.031
±.005
A
G
N
GROMMET
T
4 HOLES
GASKET
H
.750 +.031
–.000
All dimensions for reference only.
H
±.005
J
+.016
–.000
N
Dia.
+.011
–.020
R
(BSC)
S
+.021
–.020
T
Dia.
±.005
1.938
1.514
2.188
2.000
1.844
2.375
.177
2.188
1.514
2.188
2.250
2.062
2.625
.209
1.438
3.062
1.733
2.532
3.125
2.812
3.375
.281
1.438
3.562
1.733
2.532
3.625
3.156
3.875
.281
F*
±.031
G
Dia.
+.006
–.010
2.000
1.376
2.250
1.376
44
3.000
52
3.500
Shell
Size
A Thread
Class 2A
.1428P-.2857L
Double Stub
28
32
To complete MS Part number see how to order, pg. 4.
Protective cover MS90563 is supplied as part of this connector assembly. Refer to page 15 for dimensions.
*F dimension applies only when rear nut is fully tightened
8
MIL-C-22992, Class L
MS90556
straight plug
L
M
.750 +.031
–.000
MAIN JOINT
GASKET
K
C
"O" RING
GLAND
N
A
E
Q
All dimensions for reference only.
Shell
Size
and
Arrangement
28-12
28-13
A Thread
Class 2B
.1428P-.2857L
Double Stub
C
Dia.
Max
2.000
2.439
2.250
2.689
32-04
32-05, -12
E
Cable
Range
1.047-.922
1.130-1.005
K
±.005
L
Max
Free
Length
1.557
8.188
1.557
8.188
.969-.844
1.130-1.005
M
Approx.
Free
Length
7.188
7.188
1.342-1.217
8.688
44-02
1.312-1.187
10.688
44-03
1.438-1.313
3.000
3.667
1.516-1.391
1.776
10.172
9.688
10.688
44-13
1.672-1.547
12.688
44-51
1.734-1.609
11.688
44-52
3.000
3.667
44-56
52-12
52-13
1.525-1.435
1.776
10.172
1.135-1.065
3.500
4.167
2.328-2.183
2.453-2.308
11.188
2.000
2.312
2.000
2.562
2.500
3.531
2.500
3.531
3.250
4.016
7.188
1.776
11.109
17.188
18.188
To complete MS Part number see how to order, pg. 4.
Protective cover MS90564 is supplied as part of this connector assembly. Refer to page 15 for dimensions.
Contact brushings MS3348 are supplied as part of connector as required. Refer to page 13 for dimensions.
9
Q
Dia.
Max
7.188
7.188
32-13
44-12
N
Dia
+.011
–.020
MIL-C-22992, Class L
MS90557
cable connecting receptacle without coupling ring
L
C
M
.531
MIN FULL THD
A
E
"O" RING
GLAND
.750 +.031
–.000
B
All dimensions for reference only.
Shell
Size
and
Arrangement
28-12
28-13
A Thread
Class 2A
.1428P-.2857L
Double Stub
B
±.005
C
Dia.
Max.
2.000
1.514
2.439
2.250
1.514
2.689
E
Cable
Range
1.047-.922
1.130-1.005
32-04
32-05, -12
L
Max
Free
Length
8.156
.969-.844
1.130-1.005
M
Approx.
Free Length
7.188
7.188
7.188
1.342-1.217
8.688
44-02
1.312-1.187
10.688
44-03
1.438-1.313
3.000
1.733
3.667
1.516-1.391
44-13
1.672-1.547
10.688
1.734-1.609
11.688
2.328-2.183
17.188
1.733
4.167
2.453-2.308
11.062
18.188
To complete MS Part number see how to order, pg. 4.
Protective cover MS90563 is supplied as part of this connector assembly. Refer to page 15 for dimensions.
Contact bushings MS3348 are supplied as part of connector as required. Refer to page 13 for dimensions.
10
2.500
12.688
52-12
3.500
2.000
9.688
10.125
44-51
52-13
2.000
7.188
8.156
32-13
44-12
N
Dia
+.011
–.020
3.250
N
MIL-C-22992, Class L
MS90558
wall mount plug with coupling ring (equipment end)
J
F
.031
±.005
.312+.011
–.010
K
S
MAIN JOINT
GASKET
R
GASKET
A
GROMMET
N
Q
G
.750 +.031
–.000
T
4 HOLES
INTERFACIAL
SEAL
All dimensions for reference only.
J
±.031
G
Dia
+.006
–.010
F*
+.016
–.000
K
±.005
N
+.011
–.020
Q
Dia.
Max
R
(BSC)
S
+.021
–.020
T
Dia.
±.005
2.000
.959
1.938
2.639
1.557
2.000
2.312
1.844
2.375
.177
2.250
.959
2.188
2.639
1.557
2.250
2.562
2.062
2.625
.209
44
3.000
1.021
3.062
2.998
1.776
3.125
3.531
2.812
3.375
.281
52
3.500
1.021
3.562
2.998
1.776
3.625
4.016
3.156
3.875
.281
Shell
Size
A Thread
Class 2B
.1428P-.2857L
Double Stub
28
32
To complete MS part number see how to order, pg. 4.
Protective cover MS90564 is supplied as part of this connector assembly. Refer to page 15 for dimensions.
* F dimension applies only when rear nut is fully tightened.
11
MIL-C-22992, Class L Accessories
contacts
M39029/48
pin contact
A
REF
.750
+.031
–.000
H
G
D
B
C
K
REF
M39029/49
socket contact
.750
+.031
–.000
H
G
J
C
All dimensions for reference only.
Socket
MS Part
Number*
Pin
MS Part
Number
Contact
Size
Wire
Well
Size
A
Ref.
B
±.005
D
Dia
±.001
G
Dia
M39029/49-335
M39029/48-327
4/0
4/0
3.207
2.097
.641
+.004
–.003
.500
.781 ± .003
.750
---
M39029/48-328
4/0N
4/0
3.325
2.215
.641
+.004
–.003
.500
.781 ± .003
M39029/49-333
M39029/48-323
1/0
1
3.207
2.097
.406
+.004
–.003
.357
---
M39029/48-324
1/0N
1
3.325
2.215
.406
+.004
–.003
.357
M39029/49-331
M39029/48-320
4
---
M39029/48-321
4N
4
2.786
1.738
.281 ±.002
.225
.417 ± .002
4
2.904
1.856
.281 ±.002
.225
.417 ± .002
M39029/49-329
M39029/48-317
6
6
2.786
1.738
.234 ±.002
.178
.342 ± .002
.312 ± .002
C
Dia
H
Dia
J
±.005
K
Ref
+.004
–.003
1.283
2.393
.750
+.004
–.003
---
---
.609 ± .003
.506
+.004
–.003
1.283
2.393
.609 ± .003
.506
+.004
–.003
---
---
.374 ± .002
1.158
2.206
.374 ± .002
---
---
1/158
2.206
---
M39029/48-318
6N
6
2.904
1.856
.234 ±.002
.178
.342 ± .002
.312 ± .002
---
---
M39029/49-332
M39029/48-322
4G
4
2.856
1.746
.281 ±.002
.225
.417 ± .002
.374 ± .002
1.752
2.862
M39029/49-330
M39029/48-319
6G
6
2.856
1.746
.234 ±.002
.178
.342 ± .002
.312 ± .002
1.752
2.862
*Order by MS part number listed for either socket or pin.
12
MIL-C-22992, Class L Accessories
contact bushing/removal tool
MS3348
contact bushing
All dimensions for reference only.
MS Part
Number*
Contact
Wire
Barrel
Size
(Ref)
Wire
Size
(Ref)
A
Dia
+.010
–.003
B
Dia
+.002
–.003
MS3348-1 - 2L
1
2
.359
.396
MS3348-4 - 5L
4
5
.250
.272
MS3348-4 - 6L
4
6
.225
.272
MS3348-6 - 8L
6
8
.185
.225
MS3348-6 - 9L
6
9
.155
.225
MS3348-1 - 6L
1
6
.225
.396
MS3348-4 - 8L
4
8
.185
.272
MS3348-6 -10L
6
10
.136
.225
4/0
2/0
.500
.629
MS3348-4/0-2/0L
.700 +.017
–.016
A
B
* Order by MS part number listed.
MS90562
contact removal tool
2.500 ±.016
All dimensions for reference only.
MS Part
Number*
Contact
Size
A
Dia
+.000
–.002
MS90562-1
4/0
.790
MS90562-2
2/0
.696
MS90562-3
1/0
.558
MS90562-4
2
.462
MS90562-5
4
.376
MS90562-6
6
.354
A
* Order by MS part number listed.
13
MIL-C-22992, Class L Accessories
cable strain relief/cable sealing gland
MS90561
cable strain relief
All dimensions for reference only.
H
Dia
Cable Range
A
Dia
+.000
–.010
Max
Min
L
Approx.
1.797
1.145
1.003
8.000
MS
Part
Number*
Arrangement
Number
MS90561-2
28-13,
32-12
MS90561-4
28-02, -04
1.797
.844
.688
7.500
MS90561-12
28-12
1.797
1.047
.891
8.000
MS90561-13
32-13
1.797
1.342
1.185
9.500
MS90561-15
44-12
2.235
1.516
1.360
11.500
MS90561-16
44-13
2.235
1.688
1.531
13.500
MS90561-17
52-12
2.922
2.328
2.039
18.000
MS90561-18
52-13
2.922
2.500
2.211
19.000
MS90561-19
44-51
2.235
1.750
1.550
12.500
MS90561-20
44-52
2.235
1.578
1.375
12.000
MS90561-21
44-56
2.235
1.160
1.010
8.000
A
Dia
+.000
–.020
B
Dia
+.020
–.000
C
±.010
Min
Cable
Dia
Ref.
L
A
H
* Order by MS part number listed.
MS23747
cable sealing gland
All dimensions for reference only.
This gland must be used with MS90561 strain relief.
MS
Part
Number*
Arrangement
Number
MS23747-2
28-13,
32-05, -12
1.805
1.130
1.034
1.005
MS23747-12
28-12
1.805
1.047
1.034
.922
MS23747-13
32-13
1.805
1.342
1.034
1.217
MS23747-14
44-03
2.242
1.438
1.160
1.313
MS23747-15
44-12
2.242
1.516
1.160
1.391
MS23747-16
44-13
2.242
1.672
1.160
1.547
MS23747-18
52-12
2.927
2.328
1.284
2.183
MS23747-19
52-13
2.927
2.453
1.284
2.308
MS23747-20
44-51
2.242
1.734
1.160
1.609
MS23747-21
44-52
2.242
1.562
1.160
1.437
MS23747-22
44-56
2.242
1.150
1.160
1.025
C
* Order by MS part number listed.
14
A
B
MIL-C-22992, Class L Accessories
protective covers
MS90563 protective covers
used with: MS90555 wall mount receptacle
MS90557 cable connecting receptacle
.969
MAX
All dimensions for reference only.
B Dia
Ref
MS
Part
Number*
Use
with
Shell
Size
MS90563-1( )
28
2.000
.177
.177
6.000
MS90563-3( )
32
2.250
.209
–
4.500
MS90563-4( )
32
2.250
–
.177
6.000
MS90563-7( )
44
3.000
.281
.281
7.500
MS90563-11( )
52
3.500
.281
.281
7.500
A Thread
Class 2B
.1428P-.2857L
For
For
Double Stub MS90555 MS90557
C
Approx.
A
GASKET
C
* To complete MS part number, add letter C (Conductive) for AC or N
(Non-conductive) for DC connector assemblies.
B
MS90564 protective covers
used with: MS90556 straight plug
MS90558 wall mount plug
All dimensions for reference only.
MS Part
Number*
MS90564-1( )
B Dia
Use
A Thread
Ref
with Class 2A (Plated)
Shell
C
.1428P-.2857L
For
For
Size
Double Stub
MS90556 MS90558 Approx.
28
2.000
.177
.177
7.500
J
J
Max
MS90564-3( )
32
2.250
–
.209
6.000
2.266
MS90564-4( )
32
2.250
.177
–
7.500
2.266
MS90564-7( )
44
3.000
.281
.281
8.500
2.484
MS90564-11( )
52
3.500
.281
.281
8.500
2.484
* To complete MS part number, add letter C (Conductive) for AC or N
(Non-conductive) for DC connector assemblies.
RIVET
2.266
C
A
B
15
MIL-C-22992, Class L
installation instructions
Complete installation instructions (L-1014) for Class L connectors are available on
request. Reproduced below are condensed assembly instructions to familiarize the
user with the installation procedure and tooling required.
Cable Preparation (MS90556 and MS90557 connectors only)
The following table shows the standard wire color coding, generator terminal markings, and connector contact identification used with Class L connectors.
Standardized Generator Wiring and Connections
Generator
Terminal Marking
+ (POS)
– (NEG) ground
L1
L2
L3
L0
G (or Gnd)
Current
Contact
Designation
Conductor
Circuit
Wire Color
28Vdc
28Vdc
A
N
Positive
Negative
Black
White
AC
AC
AC
AC
AC
A
B
C
N
G
Phase A
Phase B
Phase C
Neutral
Safety grounding
Black
Red
Blue (Commercial may be orange)
White
Green (Commercial may be bare)
Step 1) Determine cable lay to facilitate alignment of contacts and insert holes
without wire crossing.
Step 2) Strip cable jacket to dimension shown. Avoid cutting or nicking individual
conductor insulation.
Connector
Size
D
Inches
Approx.
28
3.000
32
3.000
44
4.250
52
5.000
OUTER
JACKET
D
SEE
NOTE
Note
Some insert arrangements require that two or more ground wires be terminated into one contact. Dimension D must therefore be increased to permit
routing these wires around the larger conductors.
Step 3) Install connector components in the order shown in the applicable assembly view illustrated on pages17 and 18.
Step 4) Strip insulation of individual conductors to 3/4 inch from end of conductor.
16
MIL-C-22992, Class L
installation instructions
MS90555 Connector
2
5
4
1
Wall Mount Receptacle Components:
1. Shell
2. Insert Assembly, Socket
3. Contact, Socket
4. Grommet Assembly, Socket
5. Nut, Retaining
6. Protective Cap Assembly (Not Shown)
7. Flange Gasket (Not Shown)
3
MS90556 Connector
Straight Plug Components:
1. Shell and Coupling Nut Assembly
2. Insert Assembly, Pin
3. Contact, Pin
4. Spacer Assembly, Pin
5. Back Adapter
6. Gland Washer
7. Gland
8. Cable Grip
9. Gland Nut
10. Lockwasher (3 each)
11. Screw (3 each)
12. Protective Cap Assembly (Not Shown)
Note: On shell size 32 connectors, item #6 (Gland Washer) is contained within item #5 (Back Adaper).
17
MIL-C-22992, Class L
installation instructions
MS90557 Connector
9
8
7
6
Cable Connecting Receptacle
Components:
1. Shell
2. Insert Assembly, Socket
3. Contact, Socket
4. Spacer Assembly, Socket
5. Back Adapter
6. Gland Washer
7. Gland
8. Cable Grip
9. Gland Nut
10. Lockwasher (3 each)
11. Screw (3 each)
12. Protective Cap Assembly (Not shown)
5
11
4
3
2
10
1
Note: On shell size 32 connectors, item #6 (Gland Washer) is contained within item #5 (Back Adaper).
MS90558 Connector
Wall Mount Plug Components:
1. Shell and Coupling Nut Assembly
2. Insert Assembly, Pin
3. Contact, Pin
4. Grommet Assembly, Pin
5. Nut, Retaining
6. Protective Cap Assembly (Not Shown)
7. Flange Gasket (Not Shown)
2
5
4
3
1
18
MIL-C-22992, Class L
installation instructions
Contact Installation
Connector Assembly
Step 1) Insert stripped conductors in contact wirewells.
If contact bushing is used, insert conductor in bushing
and bushing in contact wirewell. If two or more ground
wires are inserted into a single contact, make sure all
wires are fully seated in wirewell.
Step 1) If inserts are not already positioned in the connector shell, align large tab on insert with large slot in
shell and push insert in until it bottoms in shell.
Step 2) Apply a thin coating of Dow Corning DC-4 lubricant to the periphery of contact holes in spacer or grommet assembly. Push contacts into rear of spacer or
grommet assembly until locked into contact retainer
bushing.
Step 2) Select correct crimping tool, locater and die
combination from the table for contacts to be installed.
With conductor or contact bushing in place, insert contact
into tool. Close crimping die fully to form a uniform crimp.
Contact
Part
Number
Size Type
Crimping
Locator*
Tool*
Die*
Removal
Tool
M39029/48-327 4/0
M39029/49-335 4/0
M39029/48-328 4/0N
P
S
P
Pico Model
400B or
4297-1
400B-1
414DA-4/0N-1
MS90562-1
M39029/48-323 1/0
M39029/49-333 1/0
M39029/48-324 1/0N
P
S
P
Pico Model
400B or
4297-3
400B-1
414DA-1/0N
MS90562-3
M39029/48-320 4
M39029/49-331 4
M39029/48-321 4N
M39029/48-322 4G
M39029/49-332 4G
P
S
P
P
S
Pico Model
400B or
4297-5
400B-1
414DA-4N
MS90562-5
M39029/48-317 6
M39029/49-329 6
M39029/48-318 6N
M39029/48-319 6G
M39029/49-330 6G
P
S
P
P
S
Pico Model
400B or
4297-6
400B-1
414DA-6N
Step 3) Align contacts with proper holes in insert. Small
key of insert must be aligned with appropriate keyway in
spacer or grommet assembly. Slide contacts into insert
holes until spacer or grommet assembly butts against
insert. A thin film of Dow Corning DC-4 lubricant applied
to the periphery of insert contact holes will provide maximum sealing efficiency.
Step 4) Assemble accessories to connector. The back
adapter “O” ring should have a very thin film of Dow
Corning DC-4 lubricant applied. Outer surfaces only of
gland should be lubricated with a thin film of UniTemp
Grease EP. Avoid getting grease on inside surfaces of
gland and on cable jacket.
Step 5) Tighten retaining nut or gland nut on shell or
adapter. A metal-to-metal seating condition is desireable,
but may not be attainable with maximum cable diameters.
MS90562-6
Contact Removal
* Available from Pico Crimping Tools Co.,
9832 Jersey Ave.
Santa Fe Springs, CA 90670
Phone: 805-388-5510
Step 1) Loosen all rear accessories and slide back along
cable.
If crimping tools are available, contacts may be affixed to
conductors by soldering. Use rosin-alcohol solder flux, a
good grade of 60/40 solder and a 500 watt soldering iron
or probe type resistance soldering equipment. Pre-tin
conductors before soldering. Solder must not be present
on shoulder or retention area of contact.
Step 2) Remove spacer or grommet assembly with contacts from connector insert.
Step 3) Using the appropriate size contact removal tool,
push tool over front of contact until it bottoms in spacer or
grommet assembly hole. This will open contact retaining
bushing and allow contact to be removed from the spacer
or grommet assembly from the rear. When using jacketed
cable, all contacts should be released from contact retention bushings before removal from spacer or grommet
assembly is accomplished.
19
工商网监
湘ICP备2023018690号