Inverter for circulating pump ITTPD4.0 W-RS For control of the differential pressure into the closed water circuits systems

The inverters specific for circulating pumps are variable speed drives (VSD) of the asynchronous motor, having an algorithm specifically studied for closed ring hydraulic systems for both cold and high temperature water, combined with special high-precision pressure transducers suitable for water temperatures up to 90°C.

They are available for installation directly onboard motor or for wall and can communicate each other through serial cable RS485,
having functions to assistance or alternation between 2 or more circulating pumps.


Code EF.0941.
Input Three phase Output Three phase
Max motor-pump power 4.00 kW
Max output current 11.00 A
Communication in group RS485
Mounting type Wall fixing
Electroil® Series I3 for circulating pump
  • Wall mounting pump-Inverter suitable for circulating pumps with maximum power up to 4 kW
  • Compacts and robust, with servo-ventilation cooling system
  • Metalic shielding case with special anticorrosive treatment and high protection grade (IP55)
  • Models equiped with an LCD display to show the parameters written in full text
  • Quick wall mounting and simple wires connection thanks to the heightened terminal board, and easy starting operation
  • Models suitable for controlling pressurization units up to 8 pumps, with transmission system via RS485 serial
  • 12Vdc signaling outputs for Motor ON and Alarm
  • Suitable to control circulating pump in group, via RS485 bus and BlueConnect system
  • On request, it can be supplied by mounting the line lightning protection at the input inside the inverter (LPT550V940J)
  • To couple, foe every inverter with n°2 pressure transducers K3T e K5T (to buy separately )
  • Inverter voltage supply three phase 3x(200-440)V
  • Inverter voltage output three phase 3x(200-440)V
  • Maximum motor-pump power 4kW
  • Maximum output current 11A
  • Pressure measure range from O to 10 bar
  • Cooling type servo-ventilation
  • Possibility of group connection with other inverters with RS485 communication
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Technical data
Technical data inverter Electroil ITTPD 4.0W-RS

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Catalogue circulating pump-inverters Series
Technical documentation
Application Guide Italian and English Electroil_Modbus_parameters_Univ_V1_06

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