The Hobart 00-087713-085-1 2-pole Contactor 30 AMP 110/120V is an electromechanical switching system used to switch the flow of electrical power to heavy load components by opening and closing its contacts when the coil is activated. The internal contacts are pulled in to complete the circuit to allow a maximum current to be conducted to motors, heaters, or other demand loads. It is mounted in the electrical control panel or power distribution area of the equipment, and has terminals connected to control circuits and load lines. It is connected to control relays.