Molded case circuit breaker with interchangeable trip units

Details Molded case circuit breaker with interchangeable trip units Molded case circuit breaker with interchangeable trip units

1993-09-15

1995-01-03

Donovan, Lincoln

Electricity: magnetically operated switches, magnets, and electr

Electromagnetically actuated switches

Automatic circuit-interrupting devices

335202, H01H 7312

Patent

active

053790138

ABSTRACT:
A molded case circuit breaker with interchangeable trip units has on its front face a frame protruding out from the front panel of the circuit breaker, and surrounding the circuit breaker operating handle. The frame has a window in which the end of a bracket support is inserted fixedly secured to the trip unit, when the latter is in place. An inscription, notably of the rating of the trip unit, is borne by a face of the bracket support so as to be visible at all times, even when a front protection plate covers the trip unit.

REFERENCES:
patent: 3112385 (1963-11-01), Thomas
patent: 4187482 (1980-02-01), Kosup
patent: 5075659 (1991-12-01), Morgan et al.
patent: 5252937 (1993-10-01), Bernier et al.

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