External power supply requiredNo
Max. permitted off-delay time0.1s
Voltage type (operating voltage)AC
Operating voltage at AC 50 Hz230 - 230V
Min. adjustable off-delay time0.1s
Type of electric connectionScrew connection
Operating voltage at AC 60 Hz230 - 230V
Voltage measuring range161 - 520V
Voltage type of supply voltageAC
Phase sequence monitoringYes
Phase failure detectionYes
Function under voltage detectionNo
Function over voltage detectionNo
Phase imbalance monitoringYes
Number of contacts as change-over contact1