Rotation definitions

Defining the direction of motor rotation

In accordance with DIN EN 60034-8, the direction of rotation of a motor is defined as follows:

• The direction of rotation is the direction viewed from the drive end.
• The drive end is the side with the shaft extension.
• For machines with two shaft extensions, the drive end is:
  • the end with the bigger shaft diameter
  • the end on the opposite side to the fan, if both shaft extensions have the same diameter.

• Motors with clockwise rotation turn the shaft clockwise when viewed from the drive end (viewing direction from drive end to non-drive end).

• Motors with counter-clockwise rotation turn the shaft in a counter-clockwise direction when viewed from the drive end (viewing direction from drive end to non-drive end).

Reference