Patent ID: 8174804
Filing Date: 2012-05-08
Classification: H01H

Abstract:
1. A circuit breaker apparatus for interrupting overcurrent and ground fault in a circuit, the circuit breaker apparatus comprising: an overcurrent coil for tripping the circuit breaker apparatus; a voltage coil also for tripping the circuit breaker apparatus located proximate to the overcurrent coil; ground fault electronics connected to the voltage coil and structured to detect a ground fault in the circuit when the ground fault exceeds a threshold level; and a solid state switch; wherein a first terminal of the voltage coil is connected to the ground fault electronics and a second terminal of the voltage coil is connected to a main output power terminal of the circuit breaker; the ground fault electronics are structured to send a trip signal to close the solid state switch when a ground fault is detected; and the solid state switch is configured to force a current through the voltage coil when the solid state switch is closed, the current being of sufficient magnitude to trip the circuit breaker apparatus.