PRODUCT FILES

PT434

THREE-PHASE VOLTAGE CONTROL RELAY

The device is used for protection of three-phase loads from electrical power supply disturbances. It monitors each of the three phases against under-voltage (adjustable, 25-5%) and over-voltage (pre-adjusted). 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 against under-voltage (adjustable, 25-5% / 170~215VAC ) and over-voltage (pre-adjusted). 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 the three phases of the power supply do not diverge from their nominal value more than the lower limit adjusted by the user or the the upper limit preset to 250V AC. 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 25 - 5% Vnom
  • enclosure
    Plastic box / 42x89x94mm / IP41