Circuit breaker solid state trip unit incorporating trip indicat

Details Circuit breaker solid state trip unit incorporating trip indicat Circuit breaker solid state trip unit incorporating trip indicat

1976-10-01

1978-01-10

Moose, Jr., Harry E.

Electricity: electrical systems and devices

Control circuits for electromagnetic devices

For relays or solenoids

361 96, 361156, 361193, H02H 700

Patent

active

040682838

ABSTRACT:
A separate electronic switch controls energization of each of a plurality of parallel connected electromagnetic targets. An additional electronic switch controls energization of a circuit breaker trip solenoid. The individual trigger circuits for each target switch are common with the trigger circuit for the trip solenoid switch, such that a trigger signal to any one of the target switches is also applied to the solenoid switch to achieve concurrent, but independent energization of the associated target and the trip solenoid.

REFERENCES:
patent: 3447041 (1969-05-01), Sandstrom
patent: 3573556 (1969-04-01), Zocholl
patent: 3599045 (1971-08-01), Farinas
patent: 3683362 (1972-08-01), Schwanenflugel
patent: 3975666 (1976-08-01), Redding
patent: 4004201 (1977-01-01), De Puy

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