Squirrel cage & slip ring motors


Power up to

0.150 kW

Voltage up to

2.000 V

Frequency up to

50 Hz

Specified for you

Compact three-phase slip ring motors

The EMZ compact series with our AKR and ASR motors can be used as an all-rounder for almost all standard applications and is characterised by a very high degree of reliability. The selection of high-quality materials and the optimised dimensioning of the active parts and the fans reduce losses and realise high efficiencies. The compact and torsion-resistant design in combination with an efficient cooling system guarantee a long service life.

Depending on the application, the motors of the EMZ compact series with outputs of up to 2,000 kW can be used very flexibly on the frequency converter, soft starter or even directly in mains operation.

IC 411

The rib-cooled EMZ motors with cooling type IC 411 are self-cooled and dissipate the heat loss to the outside cooling air via the ribbed motor housing and the end shields. The innovative dual-circuit cooling system with an internal cooling air circuit and an internal fan that is independent of the direction of rotation achieves an even temperature distribution in the motor.

IC 416

Cooling type IC 416 is constructively based on the proven cooling type IC 411, but differs in that the forced ventilation unit is mounted on the nondriving side and blows the external air axially over the cooling ribs, independent of the motor speed. This design guarantees a constant cooling capacity independent of the motor speed and is particularly suitable for variable-speed applications in combination with a frequency converter.

IC 511

EMZ motors with cooling type IC 511 are designed with concentric tube cooling, where the cooling tubes are rolled directly into the end walls of the stator housing. The steel-welded construction guarantees a uniform heat transfer from the inner cooling air to the outer cooling air circuit. Due to the compact design, the motors are very robust and torsion-resistant despite their low overall height.


All EMZ high voltage motors can be equipped with a wide range of accessories:

  • Winding and bearing Pt100
  • SPM measuring nipple
  • Bentley Nevada Vibration Monitoring
  • Standstill heaters
  • Contact thermometer
  • Vibration monitoring
    4–20 mA
  • Star point terminal box
  • Current transformer for differential protection
  • Tacho generator
  • Leakage water monitoring
  • Slip ring chamber lighting
  • Pressure switch for filter monitoring

Contact person high voltage

Benedikt Mathiaszyk

Managing Director

Adrián Féja

Large Drives & Projects

Frank Scherlack

Large Drives & Projects
Maximilian Helm B.Sc.

Maximilian Helm

Large Drives & Projects

Jan Pötter

Large Drives & Projects
Ines Friedrich

Ines Friedrich

Large Drives & Projects

Daniela Tobler

Large Drives & Projects

Janka Féja-Jona

Large Drives & Projects
Elif Tufan

Elif Tufan

Technical Documentation