Phase monitoring relayDUW-C12

Undervoltage monitor in three-phase mains (each phase against neutral) with fixed threshold value, fixed hysteresis and integrated testing key. It has been developed especially for emergency lighting to DIN VDE 0108. The device can also be used for monitoring an individual phase. All unoccupied inputs have to be connected to the connected phase. If there is an inverse voltage due to the consumer, which exceeds the adjusted threshold value, there is not any fault message. OK message: Relay is activated (contacts 11-14 and 21-24 closed), LED is off.Fault message: Relay is deactivated (contacts 11-14 and 21-24 open), LED is on.Key pressed: Relay is being deactivated (contacts 11-14 and 21-24 open), LED lights up. Connection with screw type terminal blocks •Operating voltage 3N 400/230 V, 50 Hz •Tolerance -30 % to +10 % •Consumption 16 VA (1.7 W) •Recovery time less than 300 ms •Dropout voltage less than 85 % •Trigger delay approx. 100 ms •Threshold value 195 V AC, fixed •Hysteresis approx. 5 %, fixed •Output / Contact 2 changeover contacts (DPDT), potential-free •Output / switching voltage max. 250 V AC/DC •Mechanical endurance 3 x 10000000 switching cycles •Electrical endurance 1 x 100000 switching cycles •Display Green and red LED •Dimensions (W x H x D) 35 x 69.3 x 60 mm •Weight 110 g •Operating temperature range -5 °C to +55 °C •Storage temperature range -20 °C to +70 °C •Ingress protection for housing / terminal block IP40 / IP20