Siemens Sinamics S120 Manual page 56

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Line connection and line-side power components
3.4 Line supply connection via residual-current devices
Figure 3-4
Recommendation
● AC/DC-sensitive differential current monitoring device RCMA423-D-2, Bender company,
the 230 V supply voltage is tapped using an upstream isolating transformer
● Measuring current transformer W120AB (120 mm) or W210AB (210 mm), Bender
company
● Circuit breaker with thermal overload release, short-circuit release, and undervoltage
release
56
Connecting a differential current monitoring device
Booksize Power Units
Manual, (GH2), 04/2014, 6SL3097-4AC00-0BP6

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