Cooling type

Designation in accordance with DIN EN 60034-6

With duct connection

Degree of protection

Designation in acc. with DIN EN 60034-5

Adaption to
basic motor module

Motor type

Open ventilated motors

Suitable for use in dry indoor environments with low dust hazards

Open-circuit ventilation through separate ventilation using axially-mounted fan unit

IC 05

–

IP23

Separate fan unit

1GF

Open-circuit ventilation through separate ventilation using radially-mounted fan unit

IC 06

–

IP23

Separate fan unit

1GG

Open-circuit ventilation through separate ventilation using separately-mounted fan unit via duct connection

IC 17

IC 37

on one side (cooling air inlet)

on both sides (cooling air inlet and outlet)

IP23

IP54

none

1GH

T.e.f.c. motors

Suitable for outdoor use or in very dusty and/or humid environments

Closed-circuit ventilation through self-ventilation using air-to-air cooler

IC A01 A61

–

IP54

Air-to-air cooler

1HA

Surface cooling (totally enclosed through natural ventilation)

IC 0041

–

IP54

none

1HC

Closed-circuit ventilation through separate ventilation using air-to-air cooler

IC A06 A66

–

IP54

Air-to-air cooler, separate fan unit

1HQ

Closed-circuit ventilation through separate ventilation using air-to-water cooler

IC W37 A86

–

IP54

Air-to-water cooler, separate fan unit

1HS