Mitsubishi UVTSA250-4SWS Undervoltage Trip

The Mitsubishi UVTSA250-4SWS is an undervoltage trip device designed for compatible Mitsubishi circuit breaker assemblies and industrial power distribution systems. Operating as a safety tripping accessory, this unit continuously monitors supply voltage conditions and automatically opens the host circuit breaker whenever line voltage drops below a predetermined operating threshold. This critical functionality prevents machinery from running under potentially hazardous low-voltage conditions, protects electrical equipment against brownouts, and eliminates unintentional restarts upon sudden power restoration. Constructed for robust performance within low-voltage switchboards, motor control centers, and industrial control cabinets, the Mitsubishi UVTSA250-4SWS provides dependable tripping actuation during sustained undervoltage events. With a net weight of 10 kg, it offers rugged construction and straightforward integration with matching Mitsubishi electrical protection hardware. Typical applications include manufacturing plants, industrial power distribution networks, automated machinery lines, and commercial building electrical systems where reliable circuit protection and uninterrupted equipment safety are paramount.