GZ1AU is a undervoltage trip accessory with 380-450V AC 50Hz. It is compatible with Easy TeSys Power GZ1E/LE circuit-breaker. To be installed on left-hand side of the circuit breaker, connection by screw clamp terminals. It provides thermal-magnetic protection, push button control and Icu breaking capacity up to 100 kA. Multi standards certified (IEC, UL, CSA, CCC, EAC) and Environmental compliant (RoHS/REACh).