Siemens Argus 7SR22 - Page 343

7SR21 & 7SR22 Performance Specification
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0.1
1
10
100
1000
10000
100000
0 1 2 3 4 5 6 7 8 9 10
Current (multiple of setting)
Time
(sec)
t
= 1000 mins
t
= 100 mins
t
= 10 mins
t = 1 min
Figure 2-1 Thermal Overload Protection Curves