VFD&Controllers Booster Controller 747D Controller

Motor Power 0.75kW ~ 75kW
Input Power 3 x 220V/380V/440V
Main Frequency 50/60Hz
External Comm. RS485, Internet



The 747D-Controller is a multi-pump controller designed to control and monitor up to six identical pumps connected in parallel for pressure boosting systems.

The 747D-Controller consists of a frequency inverter, a PID-controller and all necessary components such as main switch, contactors in one compact cabinet.

The primary role of the 747D-Controller is to control the number of pumps in operation, as well as the speed of the individual pumps, in order to adjust the performance of the system to variations in demand.

Various features of 747D-Controller such as automatic cascade control, forced pump changeover and dry-running protection help to increase the system reliability, energy efficiency and decrease downtime and cost-consuming maintenance.


Pressure boosting systems, Water supply systems, Irrigation systems, Water treatment systems, Fire fighting systems, Industrial plants


  • Automatic adjustment of the pump performance to varying demands
  • Constant discharge pressure
  • Multi-pump capability up to 6 pumps
  • Single frequency inverter available
  • Electrical and hydraulic pump protections
  • LCD display for system information
  • Small compact design