7SR21 & 7SR22 Performance Specification
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© 2013 Siemens Protection Devices Limited
1.2.2.1
Burden
1.2.2.2
Thermal Withstand
Overload Period
Overload Current
Phase and Earth
1 A
5 A
Continuous
3.0
xIn
10 minutes
3.5
xIn
5 minutes
4.0
xIn
3 minutes
5.0
xIn
2 minutes
6.0
xIn
3 seconds
57.7 A
202 A
2 seconds
70.7 A
247 A
1 second
100 A
350 A
1 cycle
700 A
2500 A
1.2.3 AC Voltage
Nominal
Operating Range
Vn
63.5 V, 110 V
40 V rms to 160 V rms
fn
50 Hz, 60 Hz
47 Hz to 62 Hz
1.2.3.1
Burden
Attribute
Value
AC Burden
≤
0.1 VA at 110 V
Attribute
Value - Phase and Earth
1 A
5 A
AC Burden
≤
0.1 VA
≤
0.3 VA
Summary of Contents for Argus 7SR21
Page 1: ...Energy Management 7SR21 7SR22 Argus Overcurrent Relay Reyrolle Protection Devices ...
Page 2: ......
Page 4: ...Contents 7SR11 and 7SR12 Page 2 of 2 2018 Siemens Protection Devices Limited ...
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