Divided adjustable armature for a circuit breaker

Details Divided adjustable armature for a circuit breaker Divided adjustable armature for a circuit breaker

2010-02-05

2011-10-18

Enad, Elvin G (Department: 2832)

Electricity: magnetically operated switches, magnets, and electr

Electromagnetically actuated switches

Automatic circuit-interrupting devices

C335S172000, C335S176000

Reexamination Certificate

active

08040209

ABSTRACT:
A divided armature for the trip mechanism of a circuit breaker especially useful for low trip current breakers allows for two independent adjustments: first of the magnetic air gap between the yoke and the armature and second of the clearance between the trip bar and the back plate of the armature. The divided armature allows the force of a return spring of the trip mechanism to be unchanged while adjusting the magnetic air gap to set the trip current point.

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