Modular multipole circuit breaker with external trip control

Details Modular multipole circuit breaker with external trip control Modular multipole circuit breaker with external trip control

1974-12-16

1976-10-12

Harris, George

Electricity: magnetically operated switches, magnets, and electr

Electromagnetically actuated switches

Automatic circuit-interrupting devices

335176, 200 50A, H01H 7502

Patent

active

039861554

ABSTRACT:
A plurality of single pole breakers, each having a nonconductive housing with parallel sidewalls and mechanically operated release means for actuating the trip mechanism are mounted with the sidewalls of adjacent units in direct contact. A rotatable trip bar extends through the sidewalls and links the release means in each of the units. The outer surface of the sidewalls is recessed around the trip bar opening to form a cavity between adjacent units. A trip lever is positioned in the cavity and attached to the trip bar. A solenoid unit has a mounting flange clamped between the sidewalls with the solenoid plunger engaging the lever to actuate the trip bar and trip the breakers when the solenoid is energized.

REFERENCES:
patent: 2875294 (1959-02-01), Schleicher
patent: 3110778 (1963-11-01), Edmunds
patent: 3197582 (1965-07-01), Norden
patent: 3864649 (1975-02-01), Doyle

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