Circuit breaker with fast trip unit

Details Circuit breaker with fast trip unit Circuit breaker with fast trip unit

1986-09-30

1988-01-12

Goldberg, E. A.

Electricity: magnetically operated switches, magnets, and electr

Electromagnetically actuated switches

Automatic circuit-interrupting devices

335 42, 335236, 335162, H01H 7510, H01H 7704, H01H 8100, H01H 8300

Patent

active

047194383

ABSTRACT:
A circuit breaker structure having a faster trip unit characterized by a circuit breaker operator and a trip unit comprising a coil, a core, and an armature, a flux concentrating plate spaced from and on the side of the armature opposite the core and for concentrating the magnetic field between the core and the armature, and a hold-back bracket having extending from and retaining the armature in a spaced position from the core so as to cause the magnetic field lines to flow through the bracket and the armature.

REFERENCES:
patent: 3162739 (1962-06-01), Klein et al.
patent: 3777293 (1973-12-01), Tuzuki

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