Protection device with lockout test

Details Protection device with lockout test Protection device with lockout test

2008-09-22

2010-12-14

Jackson, Stephen W (Department: 2836)

Electricity: electrical systems and devices

Safety and protection of systems and devices

Ground fault protection

C361S045000, C361S049000

Reexamination Certificate

active

07852607

ABSTRACT:
The present invention is directed to a protective device that includes a detection circuit, a fault detection circuit, and a circuit interrupter assembly contacts configured to be driven into a tripped state in response to the trip actuation and driven into a reset state in response to a reset actuation. A reset mechanism is configured to provide the reset actuation in response to a user reset input. A test assembly includes a test circuit configured to generate a simulated electrical perturbation exceeding the predetermined level in response to a user test input and a test timing mechanism configured to drive the circuit interrupter into the tripped state and disable the reset mechanism if any one of the detection circuit, fault detection circuit, actuation assembly, or circuit interrupter assembly fail before a predetermined time elapses such that the device is permanently inoperable.

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