APR-4VT Motor Protection Relay

APR-4VT motor protection relay is the relay to prevent the reverse run of a three-phase induction motor. In addition, the power surge absorber to prevent high voltage, which can effectively protect the load with phase sequence, phase lack protection function, and time delay function.

  • Available 3 wire
  • Adjustable over & under voltage control
  • Power Supply:
    3 x 110V AC, 3 x 220V AC, 3 x 380V AC, 3 x 400V AC , 3 x 415V AC, 3 x 440V AC.
  • Universal wide operating voltage range: Rated voltage adjustable ±30%
  • Delay Time: max 5s
  • With four LED action shows that the status of its action (normal, phase sequence, phase loss, Under / overvoltage).

Product Selection

Voltage 220Vac or 380Vac
Frequency 50/60 Hz

Technical Data

Indicator operating Normal, phase sequence, phase loss, Under/over voltage indicator
Contact rating 5A 250VAC(Resistive load)
Life Electrical 1×100000 times; Mechanical 5×1000000 times
Insulation resistance 100MΩ(DC 500V)min
Dielectric strength 1500VAC
Consumed power 2VA
Ambient temperature -10℃~+55℃
Ambient humidity 48~85%RH
Weight 110g





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