Change in supplier of external fans for SIMOTICS M-1PH8 main motors – shaft heights 180 and 225
The change in external fans was concluded in December 2017 and is only valid for SIMOTICS M-1PH8 main motors in shaft heights 180 and 225.
The following SIMOTICS M-1PH8 main motors are affected by this change:
SIMOTICS M-1PH8 shaft height (SH)
11th position of the article number (for 1PH8)
0, 1 or 3, 4
0, 1 or 3, 4
The new external fan has new Article No. and Siemens No. designations on the rating plate, making a targeted approach possible.
Shaft height (SH)
Article No. designation
Siemens No. designation
The SIMOTICS M-1PH8 article number is not affected by this change.
Configuring and specification
Due to mechanical compatibility and the negligible difference in current consumption (see table), the existing sales documentation and configuration manual remain valid. The operating instructions, 109738144, have been updated and are available in electronic form .
The dimensions and/or the dimensional disturbing contour of the motor are not changed by the new external fans.
The supply values for the new external fans are specified in the following table, but they can also be taken from the operating instructions:
SIMOTICS M-1PH8 article number
Current consumption (EC external fan)
Note: For EC fans, the current drawn can briefly reach four times the specified current as a result of the electronic input circuitry.