1) At a rated pulse frequency of 4kHz and a speed range up to 5000r/min
2) At a rated pulse frequency of 2kHz and speed range
• Forced ventilation (IP55)
– Shaft height 180 to 5000r/min
– Shaft height 225 to 3500r/min
– Shaft height 280 to 3300r/min
• Open-circuit ventilation (IP23)
– Shaft height 180 to 3000r/min
– Shaft height 225 to 2000r/min
– Shaft height 280 to 2800r/min
Note
Ambient air
If the ambient air is polluted by particles of dust or similar substances, the preferred air ow
direction is NDE→DE.
From shaft height 132 and higher, the motors with air ow direction NDE→DE are optionally
available with an air lter (option G14).
Cleaning the cooling air ducts
On air-cooled motors, you must regularly clean the cooling air ducts through which the ambient
air ows. The degree of pollution depends on the location of use. Clean the air cooling ducts, for
example, with dry, oil-free compressed air.
Motors with pipe connection
1PH8 motors with "Forced ventilation" and shaft heights 180...280 can optionally be ordered
with "pipe connection." The external fan, which is normally mounted as standard, is omitted in
this version. A molded pipe connection replaces the external fan.
The diameter of the pipe connection is based on the standard DINEN1506 or DINEN13180.
This means that commercially available pipes and molded parts for air-conditioning systems
can be used.
Note
Minimum air ow and pressure drop
Pipes and external fans of suitable type and dimensioning must be installed and connected. The
required minimum air ow and the pressure drop at the motor must be taken into account for
the design and dimensioning.
Mechanical properties
4.1Cooling
1PH8 SIMOTICS M main motors
70 Conguration Manual, 12/2022, A5E51895839A
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