Patent ID: 7630182

Claim:
An aircraft applicable current imbalance detection and circuit interruption device for monitoring current within an electrical circuit and interrupting the electrical circuit upon detection of a current imbalance, configured for replacement of an existing power controller used for controlling such circuit upon connection to a connector, wherein such connector provides an interface for both a line side and load side of said electrical circuit, and wherein said load side is connected to a load, comprising: a relay for controllably interconnecting said line side and said load side interfaces of said connector to complete said electrical circuit; a power supply; a sensor for sensing a current imbalance in the electrical circuit and for providing a sensor signal upon sensing an undesirable current within the electrical circuit; and a logic controller powered by said power supply, configured to receive said sensor signal from said sensor and to open said relay upon receipt of such signal, wherein said power supply, sensor and logic controller are positioned between said connector and said relay.