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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
Installation altitude above
sea level [m]
NOTICE
The standard motors are not suitable for use in corrosive atmospheres, atmosphere with a
high salt content, or in outdoor applications.
Synchronous/induction motors 1PH813
Operating Instructions, 04/2009, 610.48000.22
Power derating as a function of the installation altitude and ambient temperature
< 30
1000
1.07
1500
1.04
2000
1.00
2500
0.96
3000
0.92
3500
0.88
4000
0.82
Ambient temperature in °C
30 - 40
45
1.00
0.96
0.97
0.93
0.94
0.90
0.90
0.86
0.86
0.82
0.82
0.79
0.77
0.74
Description
3.3 Design
50
55
0.92
0.87
0.89
0.84
0.86
0.82
0.83
0.78
0.79
0.75
0.75
0.71
0.71
0.67
21
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