PRODUCT FILES

PT439

THREE-PHASE VOLTAGE LEVEL CONTROL RELAY WITH ADJUSTABLE UPPER AND LOWER LIMITS

The device is used for protection of three-phase loads from electrical power supply disturbances.

It monitors each of the three phases regarding voltage level, under-voltage (adjustable, 170-215VAC) and over-voltage (adjustable, 240-260 VAC). It also monitors against complete loss of a phase or the neutral.

The device is used for protection of three-phase loads from electrical power supply disturbances.

It monitors each of the three phases regarding voltage level, under-voltage (adjustable, 170-215VAC) and over-voltage (adjustable, 240-260 VAC). It also monitors against complete loss of a phase or the neutral.

Neutral connection is required.

It is installed in an electrical panel on a standard relay socket.

The output relay is activated when all three phases of the power supply do not diverge from the adjustable upper and lower limits. In any other case, the relay is deactivated.

It is a digital device using a microcontroller.

  • power supply
    3 x 230V AC / 50Hz
  • relay outputs
    One changeover contact relay 10Α / 250V AC cat. AC1 
  • indications
    POWER ON and RELAY ON
  • connection socket
    Bulb type, 8p or 11p
  • protection
    Varistor (against overvoltage and lightning)
  • operation temperature
    -20 to +50 C
  • adjustments
    Υπόταση 170 - 215VAC / Υπέρταση 240 - 260VAC
    
  • enclosure
    Plastic box / 42x89x94mm / IP41