Circuit breaker contacts condition indicator

Details Circuit breaker contacts condition indicator Circuit breaker contacts condition indicator

1991-02-25

1992-08-18

Recla, Henry J.

Electricity: circuit makers and breakers

Electric switch details

Indicators

200312, 335 17, 340638, H01H 900

Patent

active

051401150

ABSTRACT:
The open and closed conditions of the contacts within industrial-rated circuit breakers is externally ascertained by means of an auxiliary switch-contact position verifier accessory. A viewing aperture in the circuit breaker accessory cover provides visual access to a color-coded shutter that forms part of the auxiliary switch accessory and operates off the circuit breaker crossbar assembly. In the event that the circuit breaker contacts remain closed when the circuit breaker operating handle is moved to the OFF position, the colored indicia verifies the actual condition of the circuit breaker contacts.

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