Schneider Electric 1861-S1-R36A Time Delay Relay

Schneider Electric 1861-S1-R36A Magnetic Coil is a high-voltage AC coil designed to energize Square D motor-control contactors in 440/480 VAC systems at 50/60 Hz, delivering reliable actuation for industrial equipment in manufacturing, processing, and facility operations. As part of the 1861 family, this coil provides the magnetizing current that pulls in the contactor armature, enabling precise, repeatable switching of large electrical loads such as motors, pumps, conveyors, fans, and compressors. The 1861-S1-R36A is intended for use with compatible 1861-series assemblies and Schneider Electric's Square D line, offering a straightforward replacement path for worn coils in existing control panels and switchgear. Electrical specifications commonly associated with this model include a nominal 440/480 V AC coil rating and 50/60 Hz operation, ensuring compatibility with either 50 Hz or 60 Hz electrical mains. When selecting this coil, confirm that the service voltage and frequency match the control circuit's requirements to ensure reliable energization of the associated motor-contactors.