1SAM201904R1001

Supplied by Ahmedabad Electric Corporation, the ABB UA1-24 is a side-mounting undervoltage release mechanism designed to automatically trip ABB Manual Motor Starters (including MS116, MS132, and MS165 series) in the event of a control voltage drop or power failure. Engineered for a 24V control voltage rating, the UA1-24 undervoltage trip ensures that connected industrial motors are disconnected from the mains power supply when the voltage drops significantly below safe operational thresholds. This prevents automatic, hazardous motor restarting once main power is restored, ensuring complete protection for operators and machinery in emergency stop and low-voltage protection circuits. Designed for quick side mounting directly onto the starter body, it features high-reliability screw terminals for secure control wiring. Built with a rated insulation voltage ($U_i$) of $690text{ V}$ and an operational ambient temperature endurance from $-25^circtext{C}$ to $+60^circtext{C}$, the UA1-24 delivers precise fail-safe tripping performance across demanding industrial environments