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Siemens 7SR51 - 81 HB2 Inrush Current Detection

Siemens 7SR51
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81HB2 Inrush Current Detection
Reference
Parameter Value
Bias Cross, Phase, Sum
I
set
2
nd
harmonic current content setting
0.1 to 0.5 ⋅ I, Δ 0.01
I Applied current (for operate time) 0 to 2 ⋅ I
set
(switched)
Operate and Reset Level
Attribute Value
I
op
Operate level I
set
± 5 %
Reset level < 95 % I
op
Repeatability ± 1 %
Variation IEC
60255-1
-10 °C to +55 °C ≤ 5 %
f
rated
± 5 % ≤ 5 %
10.35
Technical Data
10.35 81HB2 Inrush Current Detection
550 Reyrolle 7SR5, Overcurrent Protection Device, Device Manual
C53000-G7040-C014-1, Edition 11.2019

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