Frequency inverter for speed adjustment of DS asynchronous motors,
0.18 to 15.0 kW, 200 to 240 V, 1~, 3~, 380 to 500 V, 3~, 525 to 600 V, 3~.


The universal frequency inverter from BLEMO® – a vector-controlled series of devices from 0.18 to 15.0 kW.


The ER23K is the successor of the proven ER22K. Based on the quality of the ER22K, it has been further developed and improved. Equipped with the latest electronic components, it is adapted to the current market requirements. With the pre-programmed factory software, the devices can be put into operation immediately in 95% of all applications.

Functional enhancements

In order to optimise operation, numerous functions have been extended or completely newly created in the ER23K. A navigation wheel has been newly installed, which can also be used as a setpoint potentiometer. Local control is possible with the built-in start/stop buttons. Protective lacquered boards and ambient temperature up to 50°C without declassification are standard. The CANopen and Modbus fieldbuses are already integrated.

Device versions

The ER23K is available in protection class IP21. As connection possibilities to the most different mains voltages all over the world are available: 1~ and 3~200-240 V, 3~ 380-500 V as well as 3~ 525-600 V.

Compliance with EMC requirements

The ER23K series frequency inverters have a mains filter integrated in the device, are CE marked in accordance with the EU Low Voltage and EMC Directives and comply with the applicable product standards for frequency inverters EN 61800-3 and EN 61800-5-1.

Standard features

  • 4-digit 7-segment display
  • Optional multilingual plain text display
  • Lacquered boards
  • Output frequency 0…500 Hz
  • Navigation wheel for programming and as setpoint potentiometer
  • Local control with buttons
  • Analog output
  • Built-in PI controller
  • Integrated Modbus, CANopen via RJ 45, RS 485
  • Optional fieldbus cards Profibus DP, DeviceNet, CANopen Daisy chain
  • Integrated EMC filter
  • RoHs, WEEE compliant
  • CE, UL, CSA, NOM, C-Tick, GOST