NPFC - MIL-C-38159

CONNECTORS, ELECTRIC, RAMP POWER, 480/277 VOLTS, GENERAL SPECIFICATION FOR

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Organization:	NPFC
Publication Date:	24 January 1992
Status:	inactive
Page Count:	42

scope:

This specification covers the requirements for molded rubber, male and female connectors for 480/277-V ramp power. (See 6.4.2, 6.4.4, and 6.4.9) for use in nonhazardous and hazardous (classified) locations. Beneficial comments (recommendations, additions, deletions) and any pertinent data which may be of use in improving this document should be addressed to: 2750 LOG/ES, Gentile AFS, 1060 Hamilton Street, Dayton, OH 45444-5400, by using the self-addressed Standardization Document Improvement Proposal (DD Form 1426) appearing at the end of this document or by letter.

Connectors shall be of the following series and types as specified (see 6. 2).

The series of connectors shall consist of the following:

a. Series 1 A series 1 connector is for use in nonhazardous locations. b. Series 2 A series 2 connector is for use in hazardous (classified) locations which must interlock per Underwriters Laboratories, Inc.'s standard UL 1010.

The types of connectors are defined as follows:

a. Type A - Type A connectors are series I (nonhazardous) connectors for 50/60 Hz, 600 VAC, 120 Amp service. b. Type B - Type B connectors are series I (nonhazardous) connectors for 50/60 Hz, 600 VAC, 200 Amp service. c. Type C - Type C connectors are series I (nonhazardous) connectors for 400 Hz, 600 VAC, 120 Amp service. d. Type D - Type D connectors are series I (nonhazardous) connectors for 400 Hz, 600 VAC, 200 Amp service. e. Type E - Type E connectors are series 2 (hazardous) connectors for 50/60 Hz, 600 VAC, 120 Amp service. f. Type F - Type F connectors are series 2 (hazardous) connectors for 50/60 Hz, 600 VAC, 200 Amp service. g. Type G - Type G connectors are series 2 (hazardous) connectors for 400 Hz, 600 VAC, 120 Amp service. h. Type H - Type H connectors are series 2 (hazardous) connectors for 400 Hz, 600 VAC, 200 Amp service.

This appendix describes the insert arrangements available for connectors contained in MIL-C- 38159. This appendix is a mandatory part of the specification. The information contained herein is intended for compliance only.

intended Use:

The male and female connectors and receptacles covered by this specification are intended for use with ground support and base facility equipment (ramp or wall-mounted outlets) requiring... View More

The male and female connectors and receptacles covered by this specification are intended for use with ground support and base facility equipment (ramp or wall-mounted outlets) requiring 480/277V. The series 1 connectors and receptacles are for use in nonhazardous locations. The series 2 connectors and receptacles are for use in hazardous (classified) locations. This specification is not intended to include specifications for explosionproof receptacle housings. The series 2 connectors specified herein can be used in enclosures approved for use in hazardous (classified) locations. The receptacle housings for the series 2 receptacle inserts, when used in hazardous (classified) locations, must include a rotatable collar with spring door.

All series are designed to assure proper orientation of the mating halves prior to electrical circuit closure. All series are designed to assure the grounding contacts (see 6.4.5) are engaged first and disengaged last when the connectors are mated (see 6.4.10) and unmated. The control contacts (see 6.4.3) are designed to assure the control circuit is not completed until the power contacts (see 6.4.12) are mated. The control contacts will disengage prior to the power contacts assuring the connector is not used to interrupt the load current.

a. Plugs and receptacles with different electrical ratings are not interchangeable with each other.

b. A receptacle will not accommodate a plug other than one specifically designed for use with the combination with the following exceptions:

1) Male plugs for use in hazardous (classified) locations (see 6.4.6) will mate with nonhazardous (see 6.4.11) female receptacles if the electrical ratings of the plug and receptacle are the same.

2) Plugs for use in nonhazardous locations will not mate with hazardous (classified) receptacles even if the electrical rating of the plug and receptacle are the same.

3) Male plugs procured under earlier revisions of this specification will mate with type A female receptacles. However, the male plug does not have provisions to engage the grounding circuit

provided in the type A receptacle, and the make-first, break-last feature is therefore not present.

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Document History

MIL-DTL-38159

March 5, 2021

CONNECTORS, ELECTRIC, RAMP POWER, 416/240 VOLTS

The male and female connectors and receptacles covered by this specification are intended for use with ground support and base facility equipment (ramp or wall-mounted outlets) requiring 416/240 VAC.

MIL-DTL-38159

July 22, 2015

CONNECTORS, ELECTRIC, RAMP POWER, 416/240 VOLTS

The male and female connectors and receptacles covered by this specification are intended for use with ground support and base facility equipment (ramp or wall-mounted outlets) requiring 416/240 VAC.

MIL-DTL-38159C

January 27, 2004