EPOinParallelSystems
InparallelsystemseachUPSunitmusthaveitsowndrycontact(voltagefree)connectedtoJ108.The
drawingbelowshowsa“NormallyClosed”installationofthreeUPSunitsinparallel.
WARNING:ForparallelandseparatesystemswithcommonEPO,eachUPSunitmust
beconnectedtoaseparatedrycontact.
WARNING:ParallelEPOwiringbetweenmoreUPSunitscanresultincriticalUPS
malfunctioning.
990–1598E-001
Smart-UPS™VT10–30kV A208/220VSingleandParallelInstallation
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