System components

  • Selection amplifier
  • Potentiometer
  • Add-on module
  • Gateway
  • Display and operating terminal
  • Main switch
  • Empty housings
  • Power supply units

For detailed information click on "Further information"

Further Information Further Information

Selection amplifier

To select the strongest sensor signal present (e.g. multi-circuit systems in refrigeration).


ZIEHL-ABEGG frequency inverters and ECblue EC fans have an on-board 10 Vdc power supply. It is easy to connect a potentiometer to allow the required speed or control to be specified.


For connecting a MODBUS system to a PROFIBUS system.

Display and operating terminal

For the control and configuration of basic frequency inverters and ECblue fans. Versions for mobile use and permanent installation are available.

Main switch

External main switch with bypass function. In an emergency, the frequency inverter can be bypassed using the main switch, enabling 100% speed operation of connected fans.

Empty housings

Housings for the installation of ancillary equipment.

Power supply units

To supply low voltage power. For ancillary equipment or sensors.


  • Catalogue-Control-Technology-Main-Catalogue-2017.pdf
    Control Technology (19 MB)
    Main Catalogue 08/2017 edition