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.
NSN 6620-00-867-6156
NSN 4140-01-612-3081
NSN 5999-00-133-8954
NSN 6685-01-459-1979
NSN 5920-01-148-9193
NSN 6110-01-032-2899
NSN 6650-01-155-3292
NSN 5905-00-241-2874
NSN 5895-00-553-1810
NSN 5925-01-478-2656
NSN 5895-01-443-2482
NSN 6320-01-160-7757