Specially applicable to protect low voltage generators up to 1.000 Vac, and currents up to 2.000A or higher. Precise motor heating and cooling memory, reproduces its thermal image.

  • For generators up to 1000 Vac
  • With thermal memory
  • Visual indication of tripping cause
  • Fast tripping curves

It offers a suitable protection offering the choice between 15 trip curves thus avoiding the generator working over its damage curve.

External Display Module

By means of this plug-in optional accessory, the relay status can be seen and reset from the exterior of the electrical panel board.
Easy to install. Size of a Ø22 mm push button.

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    Protection Functions

    • Overload
    • Phase imbalance or phase loss

    Related products

    U3-S / U3-N – Three-Phase Voltage Control Relays

    • Protects three-phase installations against voltage variations between phases, incorrect sequence of phases and phase loss.
    • Self-powered by the voltage to be monitored
    • Visual indication of trip cause
    • Adjustable minimum and maximum thresholds
    • Adjustable trip time delay
    • DIN rail mounting