ABB EH450-550 Three-Phase AC Contactor Coil 120V 60Hz

ABB EH450-550 three-phase contactor coil, 120V AC, 60 Hz, is designed to energize ABB’s EH450 and EH550 3-pole contactors used for heavy‑duty motor control. The coil operates on standard 120 V alternating current at a 60 Hz frequency, making it compatible with North American power systems and typical industrial control circuits. This coil is intended to be paired with the EH-series contactors, which are rated to switch three-phase loads up to 600 V AC, making them suitable for starting and running medium- to high-power motors in demanding environments. Applications span industrial automation such as conveyors, pumps, fans, and other equipment that require robust, reliable motor control with a compact, 3-pole package. By matching the EH450 or EH550 devices, this coil supports the high-current, high-voltage capabilities of the EH family while delivering the straightforward control behavior expected of ABB motor starters. When selecting this coil, confirm that your specific EH450 or EH550 assembly and installation conditions align with ABB’s recommended electrical characteristics and mounting requirements for reliable operation and safe switching of three-phase motors.