Devices with combined unbalanced current sensor and solenoid coil

Abstract

A device with a combined unbalanced current sensor and solenoid coil is provided. The device includes a core (). The core () comprises a ferromagnetic material. The core () substantially surrounds a first conductor () and a second conductor () that conduct power to and from a load (). The device includes a coil () that is wrapped around at least a portion of the core (), such that an unbalanced current between the first and second conductors () creates a first magnetic field that induces a first voltage on the coil (). The coil () is positioned adjacent to a mechanical action part (), such that application of a second voltage to the coil () creates a second magnetic field that influences the mechanical action part () to move from a first position to a second position that electrically disconnects the load () from a power source, such that the coil () serves as both an unbalanced current sensor coil and a solenoid coil.