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Double-pump wall-mounted driver with variable-frequency d

  • Compact wall-mounted controllers for the control of 2-pump booster sets.
  • SPEEDBOX DUO: Device for single-phase power supply. Each pump has its own variable-frequency drive, which makes the pumps work alternately and in cascade.
  • SPEEDBOX DUO SET: Device for three-phase power supply. It has a variable-frequency drive to control the main pump and a power relay to control the auxiliary pump. The operation is alternating, in each cycle of operation the first pump to start changes and it is always controlled by the drive.
  • Alternate operating sequence of the pumps.
  • Control panel with LCD screen with warning leds, START/STOP and AUTOMATIC push buttons.
  • Configuration system for easy and intuitive programming.
  • Pressure reading through external pressure transducer (included with drive).
  • Intensity current sensor with instantaneous reading.
  • Protections agains lack of water, overcurrent, abnormal supply voltage, shortcircuits and failure of transducer.
  • ART function (Automatic Reset Test), which connects the pump with a programmed periodicity until the water supply has been restored.
  • Register of alarms and operational controls (working hours, start counter, connections to the electrical network counter).
  • Automatic restore system after an interruption of power supply keeping the configuration parametres.
  • It's possible to connect a level switch as protection. This system is independent from the safety system against dryrunning operation.
  • Cooling system by forced convection (fan).

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