EM Brno s.r.o.

Jílkova 124
615 35 Brno
Czech Republic

GPS: 49°11'50.52"N, 16°38'8.74"E

AC Servomotors with PM of the series 5NK

Basic Information

Servomotors of 5NK series are designed for electric drives with speed regulation in the range at least 1:1000 and with high uniformity of running at low speed. Powering of servomotors from frequency converters, attached to single-phase or three-phase network of different voltages 115, 230,400 V etc.

Motors with rugged aluminium frame and connectors on the upper side have stator with three-phase winding and rotor with rare earths permanent magnets. They are equipped with built-in resolver of Czech production and with signal connector (12 pins). Current inlets are connected to main connector (8 pins). PTC termistors in winding.

Technical Information

Smaller sizes 5NK 037 and 5NK 050 cover the stall torques from 0,1 to 0,8 Nm. Driving mains voltage 1 x 230 V, (3 x 400 V if required).

Bigger motors 5NK 076 to 5NK 142 have stall torques from 0,65 to 22 Nm. Driving mains voltage 1 x 230 V or 3 x 400 V.

Maximum mechanical speed 9000 min-1 at smaller sizes and 6000 min-1 at bigger sizes (on demand up to 9000 min-1).


Flange mounting IM 3001 (IM B5), on demand IM 3601 (IM B14).


Protection IP 54 – sealed against dust penetration, self-cooling IC 410.


Ambient temperature range 0 to 40 °C.


Continuous load S1 or with changed parameters S2 to S8.


Moisture level of environment 20 to 80 % non-condensing.


Accuracy of flange and shaft acc. to DIN 42955 standard. Magnitude of vibration acc. to category A, ČSN EN 60034-14 standard.


Class of insulation F.

Painting – mat blue. 


Detailed information can be found under the tab Documents for download.

Look at other motors from our production program.

20.11.2017  SPS/IPC/DRIVES 2017
 Dear customer, we invite you to visit us on  Electric Automation - Systems and Components Trade Fair   SPS/IPC/DRIVES 2017 from 28. to 30. November 2017 in Nuremberg.   You will be welcome in our exposition, hall 3, stand 660.  
04.09.2017  IEF Brno 2017
  International Engineering Fair in Brno 9. - 13.10. 2017   We invite you to visit our exhibition at the International Engineering Fair in Brno in the hall Z, stand 131.        We are looking forward to meet you.   I-catalogue of exhibitors and products Map of Exhibition Centre