Allen-Bradley Replacement 100-C37D10 Contactor

Allen-Bradley 100-C37D10 is a 3-pole IEC contactor rated for 37 A, designed to switch three‑phase loads in motor-control circuits. It uses line-side screw terminals and a coil rated for 110 V AC at 50 Hz or 120 V AC at 60 Hz, providing compatibility with both 50/60 Hz power systems. The device includes a single normally open auxiliary contact (1 NO) for status feedback or interlocking. As part of the 100-C family, the 100-C37D10 is a compact IEC-style contractor intended for panel mounting in industrial automation. It is typically used to energize and de-energize motors, compressors, fans, and other three‑phase loads, with straightforward wiring through standard screw terminals. The 37 A main contact rating supports moderate motor startups and loads, while the coil voltage range ensures reliable operation from common control circuits. This model features line-side coil termination and screw terminals to simplify field wiring and integration into existing control panels that use 110/120 V coil control circuits. When selecting a 100-C37D10, ensure your system’s supply voltage and intended motor current align with the 37 A rating, and confirm that a single NO auxiliary contact meets your interlocking or signaling needs.