89 – Pvd3665_Gb_Ex_August 2022
3.6. Cooling
In compliance with the IEC 60034-1 standards:
The ambient air temperature shall not be less than -20°C and more than 40°C.
It is possible to use the motors in an higher ambient temperature between
40°C to 60°C but with an associated derating to the motor performances.
Warning: To reach the motor performances calculated, the motor must be
thermally well connected to a aluminium flange with a dimension of 400
mm x 400 mm and with a thickness of 12 mm.
Caution: the ambient air temperature shall not exceed 40°C (respectively
60°C with associated derating) in the vicinity of the motor flange
Warning: A significant part of the heat produced by the motor is evacuated
through the flange.
• if the air is not able to circulate freely around the motor,
• if the motor is mounted on a surface that dissipates not well the heating
(surface with little dimensions for instance),
• if the motor is thermally isolated,
• if the motor is mounted on a warm surface (mounted on a gearbox for
instance),
then the motor has to be used at a torque less than the rated torque.
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