Patent ID: 6952150

Claim:
A protective device including a plurality of line terminals configured to be connected to an electrical distribution system and a plurality of load terminals configured to be connected to a load, comprising: a fault detection circuit coupled to the plurality of line terminals and the plurality of load terminals, the fault detection circuit being configured to detect at least one fault in the electrical distribution system; a power interruption circuit coupling the plurality of line terminals to the plurality of load terminals to thereby provide power to the load under normal operating conditions, the power interruption circuit also being coupled to the fault detection circuit and configured to decouple the plurality of line terminals from the plurality of load terminals in response to the fault detection circuit detecting the at least one fault; and a test circuit coupled to the fault detection circuit and the power interruption circuit, the test circuit being configured to provide a simulated fault signal to the fault detection circuit in response to a user stimulus, the test circuit including an end-of-life alarm indicator, the end-of-life alarm indicator being configured to provide an end-of-life alarm if the fault detection circuit and/or power interruption circuit fails to respond to the simulated fault signal within a predetermined period of time.