Circuit breaker auxiliary magnetic trip unit with pressure sensitive release

摘要: An auxiliary magnetic trip unit for a circuit breaker arranged on the load strap of an industrial-rated to interrupt current upon occurrence high-level short fault. The employs magnet yoke, armature, lever interacting with latching mechanism operating mechanism, and restrain armature from moving toward yoke release in response predetermined level pressurized gas. Thus providing use breakers selective overcurrent protection electrical distribution system connected series.