ABB UA1-230 Industrial Relay Module 230V AC Control

ABB UA1-230 undervoltage release is a 230 V AC control accessory designed to be fitted to ABB contactors, providing reliable undervoltage protection that de-energizes the coil and drops the contactor if the supply voltage falls outside the specified range. Specifically, UA1-230 is rated for 230 V AC control voltage (50/60 Hz) and is intended for left-side mounting on compatible ABB installations. Used in motor control circuits to prevent restarts after voltage dips, it helps maintain safe shutdown sequences by ensuring the contactor cannot re-energize until voltage is restored. As part of ABB's UA1 undervoltage release lineup, UA1-230 is a compact accessory designed to integrate with ABB contactors to deliver reliable control voltage protection.