Siemens 75D73251A Dual Voltage Magnetic Relay Coil

Siemens 75D73251A Dual-Voltage Magnetic Relay Coil is a replacement coil kit for Siemens SZ/size 3 to 3.5 contactors, used in motor-control panels to energize the contactor’s magnetic circuit and switch heavier loads. This dual-voltage coil accepts 110–120 VAC or 220–240 VAC inputs and is associated with coil code A, making it a versatile option for installations that require either low- or high-voltage supply within a single coil assembly. The part is specified as 75D73251A and is designed for use with Siemens S3 to S3.5 contactors, typically installed in applications such as pumps, conveyors, fans, and other controlled motor loads where a compact, dual-voltage coil is advantageous.