Siemens 40NH32A Heavy Duty Contactor Coil 250-500V

Siemens 40NH32A is a Size 7 heavy‑duty contactor coil designed to energize the NH‑series 3‑pole contactors used in industrial motor‑control panels. This replacement coil is rated for 250–500 VAC, enabling operation from mid‑to‑high voltage control circuits and pairing with the Siemens NH family to reliably energize large loads. It is a standalone coil, not a complete contactor assembly, intended to restore function to the 40NH32A device when used with the appropriate NH contactor hardware. The 250–500 VAC coil range supports higher‑voltage control applications common in medium to large motor starters, making it suitable for replacing a failed coil in existing NH‑size 7 installations. When installing, verify that you are pairing this coil with a compatible NH‑series contactor and that wiring, clearance, and safety practices meet your system’s design requirements.