Siemens 75D73070J Contactor Coil 24V AC 50 to 60 Hz

Siemens 75D73070J is a 24 V AC motor-control coil designed as a direct replacement for Furnas/Siemens 75D‑series contactors. This coil kit is rated for 50/60 Hz operation and energizes the main contactor to close its power contacts in industrial motor-control circuits, making it suitable for pumps, conveyors, fans, compressors, and other equipment that relies on robust 24 V control signaling. It fits NEMA size 0 through 2-1/2 (often described as 0–2.5) contactors and is specified for use with Siemens SIRIUS coil assemblies in the S002 to S1/2 range, providing a drop‑in replacement in existing installations. As a genuine replacement coil, the 75D73070J is commonly used in OEM systems and repair scenarios to maintain reliable actuation in demanding environments while staying compatible with standard control panels and motor-control centers. When selecting this coil, verify compatibility with your exact 75D size and coil code to ensure proper fit and electrical coordination, but in most Siemens Furnas installations the 24 VAC, 50/60 Hz coil delivers consistent response times and dependable operation.