Description
3.3 Design
Synchronous/induction motors 1PH813
Operating Instructions, 04/2009, 610.48000.22
21
3.3.3 Degree of protection
1PH813□ motors (self-cooled) are available with degree of protection IP65.
1PH813□ motors (forced ventilation) are available with degree of protection IP55.
1PH813□ motors (water-cooled) are available with degree of protection IP65.
3.3.4 Ambient conditions
The following temperature ranges apply for self-cooled and forced-ventilation motors.
Permissible temperature range during operation: T = -15 °C to +40 °C
Permissible temperature range during storage: T = -20 °C to +70 °C
Under conditions other than those specified above (ambient temperature > 40°C or
installation altitude > 1000 m above sea level), the permissible torque/power must be
determined from the following table. Ambient temperatures and installation altitudes are
rounded off to 5°C and 500 m respectively.
Table 3- 4 Power derating as a function of the installation altitude and ambient temperature
Ambient temperature in °C
Installation altitude above
sea level [m]
< 30 30 - 40 45 50 55
1000 1.07 1.00 0.96 0.92 0.87
1500 1.04 0.97 0.93 0.89 0.84
2000 1.00 0.94 0.90 0.86 0.82
2500 0.96 0.90 0.86 0.83 0.78
3000 0.92 0.86 0.82 0.79 0.75
3500 0.88 0.82 0.79 0.75 0.71
4000 0.82 0.77 0.74 0.71 0.67
NOTICE
The standard motors are not suitable for use in corrosive atmospheres, atmosphere with a
high salt content, or in outdoor applications.
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