Siemens 3VX4210 3C Undervoltage Release Relay

Siemens Furnas 3VX4210-3C Undervoltage Release Relay is a voltage‑sensitive accessory that trips a compatible molded‑case circuit breaker when the supply falls outside its preset window. Rated for 110–120 V, this UVR is designed for Siemens Furnas equipment and carries the 3VX4210-3C model designation. The unit is listed as discontinued by the manufacturer, so current availability is limited to existing stock from distributors or the secondary market. In practical use, it provides automatic tripping to protect motors and other control circuits in industrial panels when undervoltage conditions are detected, helping maintain safe, defined operating parameters in automation and protection schemes.