Portable ground fault circuit interrupter

摘要

A ground fault circuit interrupter which utilizes one trip coil to perform the combined functions of interrupting a circuit on occurrence of a ground fault as well as an under voltage condition. An electronic module supplies continuous current to the trip coil until a ground fault or under voltage condition occurs. The armature is spring biased in a direction away from the trip coil, with tension of the spring adjusted to pull the armature away from the trip coil when voltage in the coil decreases below a selected amplitude.