SPEEDBOX BIG 1325 TT Three-phase/three-phase wall inverter 25 AMP

Wall driver with LCD display, for the control of a three-phase 400 V (TT) pump managed by a frequency converter (INVERTER). The electrical power supply of the appliance is three-phase at 400 V (TT). SPEEDBOX can be mounted individually to control a single electric pump or in groups of 2 electric pumps, operating in Master-Slave mode with alternating starting order. 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.

• Frequency converter for the management of an electric pump.
• 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 forced convection heat dissipation.

• Control and protection system of the electropump 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