• Over 25,000 products in stock
  • clock Stock items ordered before 15:00, will be dispatched on the same day
  • Read more about us


3 phase, phase control MWU

  • Triggers alarm upon incorrect phase sequence, phase interruption and under-voltage
  • Adjustable line voltage
  • Measures returned voltage to 98 %
  • 17.5 mm cabinet with DIN rail

Product description

Control relay for phase monitoring with voltage regeneration (returned voltage) up to about 98% of the measurement voltage. Adjustable switch at the front for adjustment of correct voltage in 3-phase networks. The switch's position is not registered until the operating voltage is switched on. If the switch position is changed during operation, all LEDs (LED indication) begin to flash but the unit will continue to function normally with the voltage that was set at the most recent power connection. The relay monitors the correct phase sequence between the three phases or whether any phase is lacking.The under-voltage function, which is adjustable between -2 % and -20 %, enables the returned voltage to be measured up to about 98%.This means that if there is a line voltage of 400 V and the relay is set to -2 % under-voltage, the relay will trigger an alarm (the relay output drops out) if the voltage drops below 392 V. Green LED (Un) indicates supply voltage OK. Yellow LED (R) indicates active relay output.


Control relay




Approvals CSA, GL, RoHS, UL
Breaking capacity 5A, 250V AC/DC
IP Class Connection IP20
IP Class Housing IP30
Output Relay
Selection of rated voltage 208, 220, 380, 400, 415, 440, 480 V
Supply voltage 3 x 208-480V AC
Temperature range bearing, from -40 °C
Temperature range bearing, to 70 °C
Temperature range from -20 °C
Temperature range to 50 °C
Time Delay Alarm 0,2 s
Time Delay On Crossing The Threshold 0,1-10s
Time Delay Start 0,6 s
Weight 80 g

Measurements and connections

Technical illustrations

Contact us

Please contact us for more information.

Send e-mail