ABB ZA40-84N Industrial Relay 120V Coil Assembly Module

ABB ZA40-84N Industrial Relay 120V Coil Assembly Module is a genuine replacement coil for ABB ZA40-series contactors, delivering 110–120 VAC coil power to energize the unit. Designed for direct replacement on ZA40 devices, it covers 3‑pole ZA40 configurations in the A26–A40 range and 4‑pole ZA40 variants, and it is compatible with UA-series contactors such as UA26 through UA30. By providing the control voltage required to pull in the contactor, this coil enables reliable switching of connected loads without rewiring, making it suitable for maintenance or retrofit in industrial controls. Typical applications include motor control, conveyors, pumps, and HVAC systems where ABB ZA40 family contactors are used to control high‑current circuits. The ZA40-84N coil assembly is specified for 110–120 VAC operation, aligning with standard mains voltages found in many industrial environments, and supports plug‑in replacement to minimize downtime during maintenance. Use of this coil module restores the ability of the ZA40 contactor to safely connect and disconnect powered loads, contributing to dependable control in industrial automation and power distribution setups.