7SR21 & 7SR22 Performance Specification
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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