1SAM201904R1007

ABB 1SAM201904R1007 UA1-415 is an undervoltage release accessory designed for ABB manual motor starters. It releases the manual motor starter, or prevents the starter from being switched ON, when the control voltage supply is interrupted or falls below the required operating level. This functionality is useful in emergency switching circuits and helps prevent automatic motor restart following a voltage interruption, improving operational and personnel safety. The UA1-415 is installed laterally on the left-hand side of ABB MS116, MS132 or MS165 manual motor starters and uses screw terminals for reliable electrical connection. The model is rated for 415 V at 50 Hz / 480 V at 60 Hz.