National Item Identification Number

00-939-4979
009394979
5925-00-939-4979
5925009394979

National Stock Number

Item Name

CIRCUIT BREAKER

Federal Supply Class

5925

Description

A device with means other than fuses for automatically opening the circuit in which it is installed when the current varies from the predetermined value for which the device is set. May include provisions for manual operation. At least one set of contacts must be in series with the actuating element(s). A combination of semiconductor and passive devices may be used in lieu of contacts. For automatically operated items in which the actuating (tripping) element and contacts are not in series, see RELAY (as modified). For items which are operated both manually and automatically but the actuating elements and contact are not in series, see RELAY-SWITCH. Excludes CIRCUIT BREAKER BOX and magneto ""breaker"" assemblies. See also SWITCH (as modified); and CONTROLLER.

Commercial and Government Entity Code (Supplier Data)

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Reference Numbers (Part Numbers)

NFJ631100URF3

Required Categories

POLE QUANTITY
TRIP RELEASE METHOD
TRIP RELEASE AMBIENT TEMP RATING
RESET METH

Required Description

3
THERMAL-MAGNETIC ALL LOCATIONS
40.0 DEG CELSIUS NOMINAL ALL LOCATIONS
MANUA