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IEC standard motors

Our IEC standard motors are energy-efficient, environmentally friendly and also suitable for operation on the frequency converter.

The motors can be supplied in the following versions in compliance with VO(EC) 640/2009.

We offer our IEC standard motors in both lightweight aluminum and robust gray cast iron designs. Cast iron motors are particularly durable, low-vibration, and ideal for harsh industrial environments. Aluminum motors impress with their low weight, good heat dissipation, and corrosion resistance—perfect for mobile applications or humid environments. While cast iron ensures maximum stability, aluminum motors score points for their ease of use and flexibility.

Technical Data

Power 0,06-132 kW
Protection class IP 55
optionally IP 56, IP 65 according to DIN EN 60034-5 (IEC 60034-5) 
Size 56-315 
Efficiency class according to IEC 60034-30 
Speeds Speeds 3,000, 1,500, 1,000, 750, 600, 500 min-¹
lower speeds available on request, pole-changing versions in many speed combinations 
Designs IM B3, IM B35, IM B5, IM B14, IM B34 and derived designs according to EN 60034-7 
Cooling types Cooling types according to DIN EN 60034-6 (IEC 60034-6)
self-ventilated, IC 411
forced-ventilated, IC 416
unventilated, IC 410 
Coolant temperature standard -20 °C to +40 °C
optional -40 °C to +60 °C 
Installation height 1000 m über NN
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Available Efficiency Categories

Standard Efficiency IE1

Frame:              63 bis 355

Power range:   0,09 kW bis 230 kW

RPM:               3000, 1500, 1000, 750 min-1

On request

High Efficiency IE2

Frame:           56 bis 71

Power range: 0.12 kW bis 0.55 kW

RPM:             3000, 1500, 1000, 750 min-1

Power range above 0.55 kW only per request.

Premium Efficiency IE3

Frame:            56 bis 400

Power range:  0.12 kW bis 1000 kW

RPM:              3000, 1500, 1000, 750 min-1

Super Premium Efficiency IE4

Frame:            56 bis 450

Power range:  0.12 kW bis 1000 kW

RPM:              3000, 1500, 1000, 750 min-1

Advantages of our IEC Norm Motors

International applicability thanks to globally approved standards
Fast availability of spare parts
Manufacturer-independent replacement thanks to uniform sizes and interfaces
Reduced downtime through fast replacement
High flexibility in use and adjustments

Ask our expert

image of Nadine Gerber

Nadine Gerber

Junior Productmanager Drives Contact