TeSys MN undervoltage – GVAU385

The Schneider Electric GVAU385 TeSys MN undervoltage release is a safety accessory designed to enhance the protection of motor circuit breakers in the GV2 and GV3 series. It ensures that the circuit breaker trips automatically when the control voltage falls below a safe threshold, preventing unsafe operation of electrical systems.

This device triggers the circuit breaker when the control voltage drops below 0.35 Uc, with possible tripping between 0.35 and 0.7 Uc. It also prevents the breaker from closing unless the voltage is restored within the safe range of 0.85 to 1.1 Uc, ensuring controlled and secure system operation.

Designed for easy integration, the GVAU385 mounts directly on the right-hand side of compatible circuit breakers and connects via screw clamp terminals for reliable wiring. Its robust construction and compliance with multiple international standards make it suitable for industrial environments.

With certifications including IEC, UL, CSA, CCC, and EAC, and compliance with Green Premium (RoHS/REACH), this undervoltage release offers dependable performance and global acceptance for motor protection systems.

Specifications