MIL-DTL-22992 Heavy Duty High Power Connectors

Amphenol Aerospace Class L MIL-DTL-22992 connectors are high-power, high current electrical connectors that can handle electrical loads up to 200 amperes. These resilient circular power connectors meet MIL-DTL-22992 qualification, a specification for heavy-duty plug-and-receptacle connectors intended for rugged environments, and they incorporate threaded coupling and a waterproof sealing design. Intended for high-current electrical loads, MIL-DTL-22992 Class L connectors are the largest cylindrical power connectors offered by Amphenol. MIL-DTL-22992 connectors have been relied on for decades in applications where high-current power loads are required when operating in environments that require extremely durable connections, particularly in power-hungry mission-critical applications.

Product Class L Connectors
Class L Connectors
Amphenol Class L 22992 high-power, heavy duty electrical connectors are designed for high-current electrical loads and are the largest cylindrical Amphenol power connectors available. Class L heavy duty connectors are ruggedized and designed for high power military and industrial applications that need maximum reliability.
Product Commercial Class L
Commercial Class L
Amphenol Commercial Class L heavy duty power connectors are the commercial equivalent of the MIL-DTL-22992 qualified connectors.
Product QWLD Connectors
QWLD Connectors
QWLD Series heavy duty electrical connectors provide reliable power and control functions in hostile environments where ordinary connectors cannot survive.
Product QWL Connectors
QWL Connectors
Designed for demanding use, Amphenol QWL cylindrical power connectors are compact and ruggedized for a variety of land and sea functions.

Applications

  • Ground vehicle and mobile power systems 
  • Demanding power applications and electrification technologies such as power generators, distribution panels, and high-power charging systems 
  • Naval/shipboard systems and aerospace ground equipment
  • Military shelters and mobile systems

Why Choose Amphenol MIL-DTL-22992 Connectors?

Amphenol Class L connectors are qualified to MIL-DTL-22992 and designed for heavy-power applications in rugged environments. They support high-current power transfer and are tested for performance under moisture, salt spray, vibration, impact, and immersion conditions.

 

We also provide engineering support, configuration guidance, and supply-chain support to help match the correct connector and insert arrangement to your application.

 

MIL-DTL-22992 Frequently Asked Questions (FAQs)

What is MIL-DTL-22992?

MIL-DTL-22992 is a U.S. military specification for heavy-duty circular power connectors (Class L) designed for high-current applications and rugged operating environments. MIL-DTL-22992 Class L connectors support 40–200 A depending on shell size and configuration.

 

Amphenol also offers commercial Class L connector options based on the MIL-DTL-22992 design interface. These options can provide similar form, fit, and function while supporting program-specific procurement needs.

 

What shell sizes and contact arrangements are available in Class L connectors?

Class L connectors are available in shell sizes 28, 32, 44, and 52, supporting 40 A, 60 A, 100 A, and 200 A respectively (configuration dependent). Insert arrangements vary by shell size and cable configuration; refer to the insert arrangement tables for exact layouts.

 

Are Class L connectors resistant to environmental hazards?

Yes. Class L connectors are designed for rugged environments and are qualified to MIL-DTL-22992, with performance demonstrated for moisture, salt spray, vibration, high impact, and immersion. A grommet-and-seal system provides waterproofing in any condition, mated or unmated, capped or uncapped. 

 

What are QWLD and QWL connectors?

QWLD connectors are heavy-duty cylindrical connectors associated with MIL-C-22992, designed for reliable power and control in harsh environments. QWL connectors are a more compact heavy-duty industrial connector family. They are a versatile, economical alternative that uses MIL-C-22992 environmental connector requirements as the performance-criteria basis.

 

What makes QWLD/QWL connectors suitable for harsh environments?

The QWLD/QWL connector families are designed for rugged duty with features that support dependable operation in harsh operating conditions.

QWLD/QWL connectors feature double-stub coupling threads (per MIL-STD-1373), sealing gaskets at every joint for waterproof assembly, and construction intended to resist abrasion, corrosion, vibration, and shock (configuration dependent). 

 

What insert arrangements and contact options are available for QWLD/QWL connectors?

QWLD offers over 300 industrial and MS-approved insert patterns, including options such as coaxial and thermocouple arrangements. Dedicated thermocouple insert arrangements are available with material options such as iron, alumel, chromel, and constantan (arrangement dependent).

 

QWL also supports equivalent MS shell sizes and insert arrangements and offers both MS and custom patterns depending on configuration.

 

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