87
6
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
