ABB PSR - Page 47

1SFC132005C0201, rev.F | Softstarters 47
PST(B) – The advanced range
Technical data
Tripping curves for the integrated electronic overload protection
All units have an integrated electronic overload protection possible to set on four different tripping classes.
Below you find a curve for each tripping class in cold state. These tripping curves are valid for PSE, PST and PSTB
Class 30
Class 20
Class 10
Class 10
A
87
6
5
4
3
21
10 000
1000
100
10
1
0
0
Time (s)
Current (x I
e
)
1SFC132134F0201
Tripping curves for electronic overload protection (Cold) for PSE, PST and PSTB.