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Siemens Simantic ET200SP - Page 291

Siemens Simantic ET200SP
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Calculating the leakage resistance
Distributed I/O system
System Manual, 12/2016, A5E03576849-AG
291
Example
The structure of an ET 200SP system consists of an IM 155-6 PN ST, two BaseUnits
BU15...D and various input and output modules. The entire ET 200SP is protected with
one
ground-fault detector:
Figure C-1 Calculation example for leakage resistance

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