Allen-Bradley 104-C37D22 AC Reversing Contactor

The Allen-Bradley (Rockwell Automation) 104-C37D22 AC Reversing Contactor is a 3-pole IEC-rated device that provides forward and reverse control for three-phase motors in industrial automation systems. It is rated for 37 A with coil voltages of 110 V AC (50 Hz) or 120 V AC (60 Hz) and a maximum rated voltage of up to 690 V AC, with screw terminals and panel- or DIN-rail-mount capability as part of Bulletin 104-C. The base configuration includes 1 normally open and 1 normally closed auxiliary contact to support basic interlocking and feedback for motor reversing tasks. Commonly used in conveyors, pumps, hoists, and machine tools for reliable reversing and industrial load control, the 104-C37D22 has common replacements such as 104-C30D22, 104-C60D22, and 100-C37D10.