Patent ID: 7835120

Claim:
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, wherein a first terminal of the voltage coil is connected to a ground fault signal input terminal and a second terminal of the voltage coil is connected to a main output power terminal of the circuit breaker; and 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; wherein the ground fault electronics are structured to send a trip signal to the ground fault signal input terminal when a ground fault is detected; and the voltage coil is structured to trip the circuit breaker apparatus when the ground fault signal input terminal receives the trip signal from the ground fault electronics.