1SAM201904R1004

ABB 1SAM201904R1004 UA1-110 is a left-mounted undervoltage release designed for ABB manual motor starters and motor protection circuit breakers. It uses a 110 V AC / 120 V AC control supply, depending on frequency, and automatically trips the connected motor starter if the control voltage is lost or drops sufficiently. This provides useful no-voltage protection and helps prevent automatic motor restart after a power interruption. The accessory is suitable for ABB MS116, MS132, MS165, MO132, MO165 and MS132-T ranges and is widely used in industrial MCCs, machinery panels, process-control systems and safety interlocking applications.