Patent ID: 8716905

Claim:
A three wire device for connecting and breaking DC power comprising: an input DC power (DC-In) arranged to be connected to a circuit board and to a collector port (C) of an insulated gate bipolar transistor (IGBT); wherein the insulated gate bipolar transistor (IGBT) is arranged to be connected to the circuit board; an output DC power (DC-Out) is arranged to be connected to an emitter port (E) of the insulated gate bipolar transistor (IGBT) and the circuit board; wherein the circuit board is arranged to be connected to a gate port (G) of the insulated gate bipolar transistor (IGBT); wherein the circuit board is designed to monitor predetermined conditions of the input and output DC power (DC-In, DC-Out); an internal DC-DC converter provided by the circuit board, wherein the internal DC-DC converter coverts high DC voltage to internal voltages; wherein the three wire device reconnects a load in accordance with an on signal received by the circuit board; and a DC minus line coupled to the circuit board.