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SPEEDBOX DUO SET Three-phase/three-phase wall inverter for the control of two electric pumps

SPEEDBOX DUO SET Three-phase/three-phase wall inverter for the control of two electric pumps

Regular price €849,00 EUR
Regular price Sale price €849,00 EUR
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Wall-mounted driver with LCD display, for the control of two three-phase 400 V pumps managed by a frequency converter (INVERTER) and a power relay. The appliance is powered three-phase at 400 V. SPEEDBOX DUO SET manages two-pump pressurization units via an electronic system and software that allow the exchange and alternation of the two electric pumps; one managed by an inverter and the other by a power relay. Therefore, the pump managed by the inverter will be changed at each operating cycle. The 0-10 BAR pressure transducer is included (on request the transducer can be 0-16 BAR). The SPEEDBOX has an air cooling system and an optional EMC filter for residential class.


  • Two frequency converters for managing the main electric pump.
  • Power relay for managing the auxiliary pump.
  • Alternating sequence of operation.
  • ART function (Automatic Reset Test): when the pump is deactivated by the dry-running protection system, ART makes, with programmed intervals, attempts to start the pump to restore the pressure in the circuit every 30 minutes for 24 hours.
  • Automatic reset system after accidental interruption of the power supply. The system starts up maintaining the configuration parameters.
  • Potential free switched contact to monitor alarms originating from system irregularities or problems with display indication. Use with single-phase input.
  • Minimum level control via external float.
  • STC (Smart Temperature Control) function: when the board temperature exceeds 85° C, the rotation frequency of the electric pump automatically decreases, decreasing the temperature but maintaining the supply of water.
  • Control panel with multifunction LCD display, LED indication and buttons
  • Current intensity sensor with digital instant readout.
  • Pressure transducer 0-10 bar (0-16 bar on request) with 4-20 mA input.
  • Operations log. Possibility of displaying: working hours, number of starts, number of connections to the electricity grid
  • Alarm log. Display of the number and type of alarm generated by the device.
  • Possibility of intervention on the PID.
  • Aluminum heat exchanger and natural or forced convection heat dissipation.


  • Control and protection system of the electric pump against overintensity
  • Protection system against dry operation of the electric pump due to lack of water
  • Abnormal supply voltage
  • Short-circuit between system output phases


Control panel includes LCD screen, warning leds, push-buttons, START-STOP, AUTOMATIC and configuration system.

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