TeSys GV electrical trip, MN undervoltage release, 48V AC 50Hz, for motor circuit breakers GV2, GV3.It trips the circuit breaker when the control voltage drops below 0.35 Uc, possible opening between 0.35-0.7 Uc.Closing of the circuit breaker is only possible when the control voltage is applied in the range 0.85-1.1 Uc.To be mounted on right-hand side of the circuit breaker, connection by screw clamp terminals.Multi standards certified (IEC, UL, CSA, CCC, EAC), Green Premium compliant (RoHS/REACh).