Circuit breaker contact position indicating unit

Details Circuit breaker contact position indicating unit Circuit breaker contact position indicating unit

1997-02-03

1998-10-20

Dang, Khanh

Electricity: circuit makers and breakers

Electric switch details

Indicators

335202, H01H 900, H01H 6702

Patent

active

058233237

ABSTRACT:
A circuit breaker contact position indicator is mounted on the same support platform as the circuit breaker electronic trip unit and contains a micro-switch to provide indication to the trip unit of the status of the circuit breaker contacts. The switch interacts with the circuit breaker operating mechanism crossbar cam by means of a spring-loaded paddle attached to the trip unit support platform.

REFERENCES:
patent: 3783215 (1974-01-01), Brumfield
patent: 4408174 (1983-10-01), Doughty et al.
patent: 4658323 (1987-04-01), Dougherty
patent: 4794356 (1988-12-01), Yu et al.
patent: 4831221 (1989-05-01), Yu et al.
patent: 5140115 (1992-08-01), Morris
patent: 5485134 (1996-01-01), Bogue et al.
patent: 5502286 (1996-03-01), Pollman et al.
patent: 5534833 (1996-07-01), Castonguay et al.
patent: 5605224 (1997-02-01), Seymour et al.
patent: 5646586 (1997-07-01), Castonguay et al.

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