Circuit breaker with improved trip means

Details Circuit breaker with improved trip means Circuit breaker with improved trip means

1974-09-25

1976-05-25

Harris, G.

Electricity: magnetically operated switches, magnets, and electr

Electromagnetically actuated switches

Automatic circuit-interrupting devices

335 37, H01H 7512

Patent

active

039597547

ABSTRACT:
An improved circuit breaker comprises a thermal trip that comprises a current carrying bimetal, and a magnetic trip that comprises a magnetic yoke and armature supported on the bimetal with a multi-turn energizing coil supported on the yoke to enhance the magnetic tripping action.

REFERENCES:
patent: 3110786 (1963-11-01), Gelzheiser
patent: 3200217 (1965-08-01), Bullis, Jr.
patent: 3213249 (1965-10-01), Ellsworth et al.
patent: 3278707 (1966-10-01), Klein

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