Siemens 7SR224 - Page 107

7SR224 Argus Performance Specification
©2010 Siemens Protection Devices Limited Chapter 3 Page 22 of 49
0.1
1
10
100
1000
10000
100000
0123456789
Current (multiple of setting)
Time
(sec)
10
τ
= 1000 mins
τ
= 100 mins
τ
= 10 mins
τ
= 1 min
Figure 2-1 Thermal Overload Protection Curves