Siemens SENTRON - Page 29

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Figure 11: Type B+ frequency-dependent tripping current
Note: The lines illustrated are typical patterns. Deviations up to the limit
values of the standard are possible.
In order to fulll the tripping conditions for protection against indirect contact
(fault protection) using the SIQUENCE universal current-sensitive RCCB, its tripping
characteristics at different frequencies and the frequency spectra occurring in the
application at the fault location must be taken into account. On the assumption
of unfavorable conditions (high clock pulse rate of a frequency converter; also see
section 5.3.2), the maximum permissible grounding resistances listed below are
recommended.
Frequency response characteristics of the SIQUENCE current-sensitive Type B+ RCCB
10.000
1.000
100
10
1 10 100 1.000 10.000
Auslösestrom (mA)
Frequenz (Hz)
Frequency (Hz)
G_I201_DE_18122
Tripping current (mA)
Tripping values for rated residual current 30 mA
Tripping values for rated residual current 300 mA
Upper limit according to DIN V VDE V 0664-110 and DIN V VDE V 0664-210 for 30 mA
Upper limit according to DIN V VDE V 0664-110 and DIN V VDE V 0664-210 for 300 mA
100001000100101
10000
1000
100
10