It is a 3-pole (3 NO main poles) device rated for AC-3 duty at 12 A up to 440 V, with a 100 V DC coil and one normally-closed (NC) auxiliary contact built in. The utilisation categories cover AC-1 (resistive), AC-3 (squirrel-cage motor starting/running), and AC-4 (plugging/inching), so it handles both standard motor starts and more demanding reversing or jogging applications.
This class of reversing contactor is used in motor control panels for applications that require direction reversal: conveyors, hoists, winches, door operators, pumps, and small machine tools. The preassembled reversing busbar simplifies wiring and reduces panel space compared to wiring two separate contactors with an interlock. The 1 NC auxiliary can be wired as an electrical interlock to prevent both contactors from closing simultaneously.
