The Square D 2959-S1-W40A is a high-voltage replacement coil for Square D 2959-series industrial relays and contactors. It is rated for 550/600 V operation and supports 50/60 Hz control systems, making it suitable for standard industrial control circuits. As an OEM replacement coil for 2959-S1 devices, it provides the electromagnetic actuation needed to energize the relay or starter in automation applications. Use this coil to retrofit or repair 2959-S1 assemblies when a 600 V coil is required.
