Patent ID: 7619860

Claim:
A protective device for use in an AC electrical distribution system, the device comprising: a hot line terminal, a neutral line terminal, a hot load terminal, and a neutral load terminal, the hot line terminal and the neutral line terminal being configured to be coupled to the AC electrical distribution system; a low pass filter circuit having a capacitor coupled in series with a solenoid coil of the protective device, the low pass filter being coupled across the hot line terminal and the neutral line terminal and configured to filter transient over-voltage signals propagating in the AC electrical distribution system; a miswire detection circuit configured to detect a miswire fault condition when AC power is coupled to the hot load terminal and the neutral load terminal; an interrupting contact assembly including interrupting contacts that provide electrical continuity between the hot line terminal and the hot load terminal and the neutral line terminal and the neutral load terminal in a reset state, the interrupting contacts being open in a tripped state; and an indicator circuit coupled to the interrupting contact assembly and being configured to indicate the tripped state and/or the reset state.