Allen-Bradley 100-C37D00 3-Pole IEC Contactor

The Allen-Bradley 100-C37D00 is a 3-pole IEC contactor designed to switch and control three‑phase motors and other high‑current loads in industrial automation systems. It supports up to 37 A (AC-3) at voltages up to 690 V AC, with a 110–120 V AC coil (50/60 Hz) and no auxiliary contacts in the base unit. It mounts on DIN rail or panel and uses screw terminals for connections, making it suitable for motor control centers, pump systems, conveyors, HVAC equipment, and production machinery where reliable motor starting and stopping is required. Common replacements for this unit include Allen-Bradley 100-C30D00, 100-C43D00, and 100-K40D00.