Product Data Sheet
Call 800-678-0141 or visit us at www.amphenol-aerospace.com
Amphenol
Aerospace
1www.amphenol-aerospace.com
PDS-235
The Amphenol Class “L” heavy duty connectors are now available in a lower cost
commercial version. The Class L meets the demands for heavy duty & heavy
power connectors that are critical for rugged environmental conditions.
Amphenol Commercial Class L
MIL-DTL-22992
The Interconnection Leader
Cable Connecting
Receptacle
without Coupling Ring
Wall Mount Plug with
Coupling Ring
(equipment end)
Straight Plug
Wall Mount Receptacle
(power source)
Design features of Amphenol Class L provide:
• 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 voltage, current, frequency, phase and
grounding requirements
• Standardization - MIL-DTL-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.
• 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.
• 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.
• Accessories - Supplied with all Class L connectors as indicated on the individual
connector descriptions. Replacement accessories may be ordered separately.
Condition Configuration Description Reference
Thermal Shock Unmated Five complete on 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-
DTL-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-
DTL-22992
Fluid Immersion Unmated 20 hours immersion in hydraulic fluid
and lubricating oil
MIL-
DTL-22992
Water Immersion Mated and
Unmated
4 hours immersion at 1 atmosphere
pressure differential
MIL-
DTL-22992
Contact Catalin Brandas for more
information at cbrandas@amphenol-aao.com
or call 607-563-5129
Call 800-678-0141 or visit us at www.amphenol-aerospace.com
Product Data Sheet
Amphenol
Aerospace
2
PDS-235
®2008 Amphenol Corporation Printed in U.S.A. 9/19/2008
Notice: Specifications are subject to change without notice. Contact your nearest Amphenol Corporation Sales Office for the latest specifications. All statements, information and data given herein
are believed to be accurate and reliable but are presented without guarantee, warranty, or responsibility of any kind, expressed or implied. Statements or suggestions concerning possible use of our
products are made without representation or warranty that any such use is free of patent infringement and are not
recommendations to infringe any patent. The user should assume that all safety measures are indicated or that other
measures may not be required. Specifications are typical and may not apply to all connectors.
AMPHENOL is a registered trademark of Amphenol Corporation.
1. 2. 3. 4. 5. 6. 7.
Commercial
Number
Shell
Finish
Shell
Size
Alternate Master Key/
Keyway Position
Insert
Arrangement
Contact
Type
Alternate Insert
Rotation
CL90555* C 32 4 12 S Y
Designates Current Carrying Capability
28 40 amperes
32 60 amperes
44 100 amperes
52 200 amperes
Easy Steps to build a part number... Commercial Class L Series
Step 3. Select a Shell Size - (related
directly to current carrying capability)
Step 5. Select an Insert Arrangement
Contact Amphenol or see catalog 12-C Edition 4
Circular Interconnects for available insert
arrangements for Class L connectors. Insert
arrangements are determined by connector size
(current carrying capability) and cable configuration
to be accommodated.
Step 4. Select an Alternate Master
Key/Keyway Position if needed
N designates normal position.
Positions 1, 4, 5 and 6 of the
master key/keyway prevent cross-
mating of incompatible voltages.
Designates
CConductive for AC circuits
NNon-conductive for DC circuits
Step 2. Select a Shell Finish
Designates
PPin Contacts
SSocket Contacts
Step 6. Select a Contact Type
Step 7. Select an Alternate Insert Rotation if needed
Used to prevent cross-mating of incompatible frequencies.
Absence of a letter in this space indicates Normal (0°)
position of the insert. See catalog 12-C Edition 4 Circular
Interconnects refer to page 466.
Amphenol Federal Vendor Identification FSCM77820
MS90555/CL90555 and MS90557/CL90557 are supplied with socket con-
tacts only. MS90556 /CL90556 and MS90558/CL90558 are supplied with
pin contacts only.
*Commercial Numbers are supplied less protection caps and strain reliefs
which can be added separately.
Shell
Size
Current
Rating
Amps
Shell Master Key/Keyway Position
60Hz & 400 Hz
1 Phase 3 Phase
2 Wire 3 Wire 3 Wire 4 Wire
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°) 6 (150°)
32 60 4 (120°) 5 (135°) 4 (120°) –4 (120°) 5 (135°) 6 (150°)
44 100 4 (120°) –4 (120°) 1 (60°) 4 (120°) 5 (135°) 6 (150°)
52 200 – – 4 (120°) –4 (120°) 5 (135°) 6 (150°)
Grounding Assemblies: Finish C
Shell
Size
Current
Rating
Amps
Shell Master Key/Keyway
Position
DC
2 Wire
28 VDC
28 40 N (105°)
32 60 N (105°)
44 100 N (105°)
52 200 N (105°)
Non-grounding Assemblies: Finish N
Designates
CL90555 Wall Mount Receptacle (Power Source)
CL90556 Straight Plug
CL90557 Cable Connecting Receptacle without Coupling Ring
CL90558 Wall Mount Plug with Coupling Ring (Equipment End)
Step 1. Select a Commercial Number Step 2. Select a Shell Finish
4
5
6
N
Normal
1
MASTER
KEYWAY
TYPICAL
SOCKET
ARRANGEMENT
15
REF
front face of receptacle shown
Note that insert arrangement does not
rotate with master key/keyway
Mouser Electronics
Authorized Distributor
Click to View Pricing, Inventory, Delivery & Lifecycle Information:
Amphenol:
CL90555C32412S CL90558C32412P CL90558C44412P CL90556C32412P CL90557C32412S CL90556C32413P
CL90558C32413P CL90555C32413S CL90557C32413S CL90556C44412P CL90557C44412S CL90556C44413P
CL90558C44413P CL90555C44413S CL90557C44413S CL90555C44412S
