Circuit breaker with trip delay magnetic circuit

Details Circuit breaker with trip delay magnetic circuit Circuit breaker with trip delay magnetic circuit

1986-03-14

1987-07-28

Goldberg, E. A.

Electricity: magnetically operated switches, magnets, and electr

Electromagnetically actuated switches

Tripping means

335 41, 335 59, 335 63, H01H 900

Patent

active

046834516

ABSTRACT:
A circuit breaker with a magnetic circuit for delaying the trip function and characterized by a dual variable magnetic circuit air gap which allows a time delay at low level overcurrents, such that motor starting transient currents do not prematurely trip the circuit breaker.

REFERENCES:
patent: 4062052 (1977-12-01), Harper et al.
patent: 4220935 (1980-09-01), Wafer et al.
patent: 4503408 (1985-03-01), Mrenna et al.

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