Low-voltage IEC standard motors


  • Energy-efficient and non-polluting
  • these motors are designed for operation on a frequency converter
  • designed according to EN 60034 (IEC 60072)
  • mounting dimensions and allocation of output according to DIN 42673, 42677, or progressive
  • rugged low-vibration gray cast iron design
  • type of protection IP 55, higher types of protection up to and including IP 65 available upon request
  • thermal class 155 (F) including thermal reserve, 180 (H) available as an option
  • terminal box optionally arranged on top, on the right or left
  • many modifications available
  • can optionally be fitted with a transponder


Technical details

Frame sizes56 – 315
Power output range0.06 – 132 kW
Efficiency classes according to IEC 60034-30With due regard to VO(EG) 640/2009, these motors are available in the following design configurations:

  • without efficiency classification,
  • Standard Efficiency IE1,
  • High Efficiency IE2, and
  • Premium Efficiency IE3
Speeds3,000; 1,500; 1,000; 750; 600; 500 r.p.m., lower speeds are available upon request, pole-changeable designs are available for many speed combinations, such as with Dahlander winding 4-2, 8-4, 12-6-pole or 6-4, 8-2, 8-6 and 12-4-pole with two separate windings, for example, with three speeds such as 8-4-2 or 8-6-4 resp., or with four speeds 12-8-6-4-pole
Types of protectionIP 55, optionally IP 56, IP 65 according to EN 60034-5 (IEC 60034-5)
Design typeIM B3, IM B35, IM B5, IM B14, IM B34 and derived designs according to EN 60034-7
Types of coolingAccording to EN 60034-6 (IEC 60034-6)

  • self-ventilated IC, 411
  • forced ventilated, IC 416
  • unventilated, IC 410
    Coolant temperature / altitude of siteAs a standard feature, -20°C through +40 °C, optionally -40°C through +60 °C, altitude of site 1,000 m above sea level
    TransponderOptional, RFID System iID®2000 (13.56 MHz based on ISO 15693)
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