Auxiliary trip device for a circuit breaker

Details Auxiliary trip device for a circuit breaker Auxiliary trip device for a circuit breaker

1994-03-30

1996-04-30

Recla, Henry J.

Electricity: circuit makers and breakers

Contact moved by sudden release of stored energy,

200323, 200318, H01H 500

Patent

active

055127207

ABSTRACT:
An auxiliary trip device for a circuit breaker which includes an electromechanical actuating device and an energy storage system. The electromechanical actuating device includes a coil housed in a sheath which has a central bore containing a plunger fixed to a push-rod, and a fixed core spaced apart from the plunger, via a first spring. The push-rod is slidable within the bore to actuate a latch device of the energy storage system, which in turn releases a blade which is cooperable with a trip bar of the circuit breaker on which the auxiliary trip device is placed. The blade is biased by a second spring which releases and stores energy greater than released and stored energy of the first spring.

REFERENCES:
patent: 2697148 (1954-12-01), Slebodnik
patent: 3293577 (1966-12-01), Kiesel et al.
patent: 4061993 (1977-12-01), Hennemann
patent: 5294903 (1994-03-01), Bosch et al.
patent: 5343179 (1994-08-01), Pipich et al.

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