Siemens SITOP PSU100C 6EP1321-5BA00 Operating Instructions Manual page 48

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Applications
9.1 Parallel connection to increase the power rating
NOTICE
Protective circuit for the parallel connection of more than two power supplies
When connecting more than two power supplies in parallel, additional measures must be
taken to prevent high reverse currents in the event of a secondary device fault. For this
purpose, a suitable protective circuit (e.g. decoupling diode
or DC-compatible miniature circuit-breaker) must be installed between each "+" terminal of
the power supply and the common connection point.
48
Operating Instructions, 06.2013, C98130-A7599-A1-2-7629
SITOP PSU100C

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