CIRCUIT BREAKER TRIP INDICATOR AND AUXILIARY SWITCH COMBINATION

摘要

41 PR 3277 CIRCUIT BREAKER TRIP INDICATOR AND AUXILIARY SWITCH COMBINATION A plunger is normaly held in a retracted, non-indicating position by a permanent magnet against the force of a spring biasing the plunger to an extended, indicating position protruding through an indicator cap. An electromagnet is selectively energized to develop flux in opposition to the magnet holding flux, whereupon the plunger pops to its indicating position. The cap internally mounts a pair of contacts which are bridged by a plunger mounted shorting ring incident with the plunger assuming its indicating position, thereby completing an external electrical indication circuit.