MIL-STD-1285 Marking Of Electrical And Electronic PartsThis standard establishes requirements for the physical marking of electrical and electronic parts. This standard should be implemented by incorporating suitable requirements directly in acquisition documents.

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MIL-STD-1285D

w/ CHANGE 1

APPENDIX E

E.3.1.3 Other functional marking. Other functional marking shall be as specified in the acquisition document.

E.3.2 Part identification marking.

E.3.2.1 Circuit breaker marking. Marking of circuit breakers shall conform to method I. Additions to the requirements of 5.2 are as follows:

a. Current rating. b. Voltage rating.

c. Operating frequency, if applicable.

E.3.2.2 Marking location. Unless otherwise specified in the acquisition document, all method I marking except for the main terminal marking, shall be applied to the side of the circuit breaker case. The current rating shall be applied to the exposed end surface of the actuating arm, when specified in the acquisition document.