7SR242 Duobias Performance Specification
©2010 Siemens Protection Devices Limited Chapter 3 - Page 22 of 45
0.1
1
10
100
1000
10000
100000
012345678910
Current (multiple of setting)
Time
(sec)
W
= 1000 mins
W
= 100 mins
W
= 10 mins
W
= 1 min
Figure 2-1 Thermal Overload Protection Curves
