TeSys GV electrical trip add-on block, MN undervoltage trip, 380-400V AC 50Hz / 440V AC 60Hz, for TeSys GV2 and GV3 motor circuit breakers. It trips the circuit breaker when the control voltage drops in limits 0.7-0.35 Uc. To be installed on right-hand RH side of the circuit breaker, connection by spring terminals. Multi-standards certified (IEC, UL, CSA, CCC, EAC), Green Premium compliant (RoHs/Reach).