Siemens Industry Online Support
Siemens AG
Entry type: Product note Entry ID: 109763835, Entry date: 02/13/2019

Change in supplier of external fan for SIMOTICS M-1PH8 main motors – shaft height 280

  • Entry
  • Associated product(s)
There has been a change in supplier of the conventional three-phase external fans for the SIMOTICS M-1PH8 main motors in shaft height 280 to ebmpapst. The new three-phase EC external fan from ebmpapst is functionally equivalent and installation-compatible with the previous external fan from Ziehl-Abegg.

The change in external fan was concluded end of January 2019 and is only valid for SIMOTICS M-1PH8 main motors in shaft height 280.

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)


1 or 4


1 or 4 with option G14 


1 in connection with option L02

280 4 in connection with option Q03

The option L02 and Q03 will be compensated with the new three-phase EC external fan. Therefore, the option L02 and Q03 will be cancelled next time. For this phase-out an seperate product information will be given.

The new external fan has new Article No. and Siemens No. designations on the rating plate, making a targeted approach possible.


External fan

Shaft height (SH)

Article number

Article No. designation

Siemens No. designation






The SIMOTICS M-1PH8 article number is not affected by this replacement. On the rating plate of the 1PH8 motor the replacement of the external fan will be marked with the revision number (RN) 001.

Security information
In order to protect technical infrastructures, systems, machines and networks against cyber threats, it is necessary to implement – and continuously maintain – a holistic, state-of-the-art IT security concept. Siemens’ products and solutions constitute one element of such a concept. For more information about cyber security, please visit