Adapter assembly for circuit breaker undervoltage release access

Details Adapter assembly for circuit breaker undervoltage release access Adapter assembly for circuit breaker undervoltage release access

1982-12-03

1984-08-21

Miller, J. D.

Electricity: magnetically operated switches, magnets, and electr

Electromagnetically actuated switches

Automatic circuit-interrupting devices

335164, H01H 8312

Patent

active

044672993

ABSTRACT:
An adapter assembly is provided for use with circuit breakers having automatic charge and employing undervoltage release accessory. The adapter is inserted between the undervoltage release tripping mechanism and the circuit breaker operating mechanism to prevent the circuit breaker from tripping from a charged position when the circuit breaker contacts are open. The adapter assembly interferes with the undervoltage tripping lever when the circuit breaker contacts are open to prevent the undervoltage release tripping mechanism from tripping the breaker under conditions of undervoltage or power outage, thus providing a true stored energy device regardless of undervoltage conditions.

REFERENCES:
patent: 4061993 (1977-12-01), Hennemann
patent: 4097831 (1978-06-01), Jencks et al.
patent: 4128750 (1978-12-01), Castonguay

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