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DUW-C12, 3x 230 V AC

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.

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 2 changeover contacts (DPDT), potential-free
Output / switching voltage max. 250 V AC/DC
Mechanical endurance 2 x 107 switching cycles
Electrical endurance 2 x 105 switching cycles
Display Green and red LED
Dimensions (W x H x D) 35 x 70 x 65 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

Technical Data 

  • P/N110271
    Feature 1
    Feature 2


pdf Instruction 110271 892.29 KB
pdf Produktuebersicht C|Logline 899905-05 EN 3.55 MB
last update on Tuesday, 6. September 2016 - 4:30