Siemens 3TD 10 17-0C 3-Phase Reversing Contactor

Siemens 3TD 10-17-0C is a three‑pole reversing contactor designed for forward/reverse control of three‑phase motors in industrial control panels. It supports AC operation up to 600 V and is rated for motor loads up to 7.5 HP, making it suitable for mid‑range conveyors, pumps, fans, and machine tools. The coil is 110 VAC, with an energized current typically in the range of 0.63–1 A. This model includes two normally open and two normally closed auxiliary contacts (2NO/2NC) to provide essential interlock and signaling functions in control logic. Specifically engineered for reversing duty, the 3TD 10‑17‑0C enables motor direction changes by correctly wiring the contactor’s main and auxiliary contacts, helping streamline panel layouts where compact reverse capability is required. Use cases include equipment where periodic reversal is needed to reverse conveyors, rotation direction in drives, or reversing flows in pump and fan systems, all within the device’s 600 V AC rating and 7.5 HP capability. Ensure proper wiring per electrical standards and verify compatibility with your system’s voltage, current, and control circuitry to achieve reliable, maintainable reverse‑drive control.