Patent ID: 7843197
Filing Date: 2010-11-30
Classification: G01R,H01H,H02H

Abstract:
1. An electrical wiring device comprising: a plurality of line terminals and a plurality of load terminals; a sensor circuit coupled to the plurality of line terminals, the sensor circuit being configured to generate a sensor fault signal in response to at least one fault condition propagating on the plurality of line terminals and/or the plurality of load terminals; a fault detection circuit coupled to the sensor circuit, the fault detection circuit being configured to generate a fault detection signal when the sensor fault signal exceeds a predetermined level; a circuit interrupter assembly coupled to the fault detection circuit, the circuit interrupter assembly including a set of movable contacts configured to be driven into a tripped state in response to the fault detection signal and driven into a reset state in response to a reset actuation; and an automatic self-test assembly coupled to the plurality of line terminals or the plurality of load terminals, the sensor circuit, the fault detection circuit and the circuit interrupter assembly, the automatic self-test assembly including,