Molded case electronic circuit interrupter

Electricity: electrical systems and devices – Safety and protection of systems and devices – With specific current responsive fault sensor

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H02M 3053

Patent

active

048841641

ABSTRACT:
An electronic trip unit within a self-contained circuit interrupter utilizes dual electromagnetic trip actuators. One such actuator responds to overcurrent conditions to interrupt the protected circuit up to a predetermined value. The other such actuator interrupts the protected circuit at all overcurrent conditions in excess of the predetermined value.

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patent: 4757294 (1988-07-01), Todaro et al.
patent: 4788621 (1988-11-01), Russell et al.

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