WEG SSW-03 Plus Series - Page 88

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DETAILED PARAMETER DESCRIPTION
Figure 6.11 - Thermal Classes for Hot Motor Protection
To determine the actuation times for applications
inbetween no load and full load condition a
multiplication factor dependent on the percentage of
the motor current has to be applied.
Class 30
Class 25
Class 20
Class 15
Class 10
Class 5
0 1 2 3 4 5 6 7 8
1000
100
10
1
0.1
t (s)
x In
Current %In Factor
0% 1
20% 0.84
40% 0.68
60% 0.51
80% 0.35
100% 0.19
Table 6.4 - Multiplication factor for the corrected
Thermal Class times