3-phase Monitoring DUW-32

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€77.44
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The three-phase monitoring relay DUW-32 monitors the

three-phase mains for the correct phase sequence as

well as for failure of a phase.

The device is supplied by the measuring circuit L1 – L2

– L3 – (N). The output relay is pulled up in normal

operation. The output relay drops out if the phase

sequence is violated, a phase fails or the voltage drops

below 75% of the rated voltage. The error is displayed

by the red LED. In order to bypass brief mains faults,

the off time t2 can be delayed by 0.1 to 10 seconds with

the potentiometer

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Input side

Supply and measuring terminals L1 - L2 - L3 L1 - L2 - L3 - N

Supply and measuring voltage 3 x 400 V AC / 50 Hz 3 x 400 / 230 V AC / 50 Hz

max. continuous voltage 3 x 460 V AC 3 x 265 V AC

Maximum overvoltage < 1 ms 3 x 500 V AC 3 x 288 V AC

Power consumption max. 2 VA

Setting and accuracy

Low range (Umin.) 75 % Un

Hysteresis 5 %

Time delay t1 max. 500 ms

Time delay t2 adjustable 0.1 - 10 s

Output side

Number of contacts 1 changeover contact

Switching voltage 250 V AC1 / 24 V DC

Switching current / contact material 8 A / AC1 / AgNi

max. peak current 10 A

Switching capacity 2000 VA / AC1, 240 W / DC

min. DC switching capacity 500 mW

Output display red / green LED

General data

Mechanical life 1 x 107

Electric life at 12 A 1 x 105

Ambient temperature -20°C … +55°C

Storage temperature -30°C … +70°C

Test voltage coil / contact 4 kV

Mounting position Any

Fixing DIN rail EN 50022-35

Protection class of front IP 40

Voltage limitation class III

Degree of contamination 2

Connection cross-section Wire max 2x2.5 mm2 or 1x4 mm2

with sleeve max. 1x2.5 mm2 or 2x1.5 mm2

Weight 67 g 66g

Standards EN 60255-6, EN 61010-1 

DUW-32

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