Circuit breaker locking and unlocking mechanism

Details Circuit breaker locking and unlocking mechanism Circuit breaker locking and unlocking mechanism

2011-01-04

2011-01-04

Barrera, Ramon M (Department: 2832)

Electricity: magnetically operated switches, magnets, and electr

Electromagnetically actuated switches

Automatic circuit-interrupting devices

C335S013000, C335S157000, C335S158000, C324S424000

Reexamination Certificate

active

07864003

ABSTRACT:
A circuit breaker and method include main contacts configured to connect in an on position and be separated in an off position. A handle is coupled to one of the main contacts to adjust the contacts between the on position, the off position, a trip position and an over on position. Secondary contacts are configured to provide power when connected using the handle in the over on position, even when the main contacts are separated. A stop mechanism configured to maintain separation between the main contacts to enable testing using the secondary contacts to power a test circuit such that if a test passes, the stop mechanism is released to permit resetting of the main contacts.

REFERENCES:
patent: 2002/0135960 (2002-09-01), Bernstein
patent: 2003/0016101 (2003-01-01), Calixto et al.

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