The W23 and W31 series thermal circuit breakers share the same body and electrical specifications. Both of these single-pole breakers are equipped for manual on/off switching as well as circuit protection. The W23 has a push/pull operation, while the W31 has a toggle. They offer ratings from one-half amp all the way up through 50 amps, and can operate up to 50 volts DC or 250 volts AC up to 400 hertz. Screw terminals are provided for wiring and each breaker mounts via a threaded bushing. They are UL recognized and CSA certified. W23 and W31 series breakers are typically used in general aviation aircraft and other applications.