34007724EN/AD - Page 3510 811910 81195. Appendices5.1 Technical specificationsElectrical characteristicsI/T network and industrial operating modesSelection of protection devicesUPS unit with common Normal and Bypass AC inputsUPS unit with separate Normal and Bypass AC inputsWhen sizing the upstream circuit breakers, the parameters presented below must be taken into account:Line current valuesUPSpower ratingContinuous currentat 400/320 Voltsand nominal loadContinuous currentat 320 Volts andoverload = 110 %limited to 2 minutesInput fuse rating Output fuse rating5 kVA 9/10 A 11 A 25 A 80 A7 kVA 10/11 A 12 A 25 A 80 A11 kVA 15/19 A 21 A 30 A 100 ADiscrimination of upstream/downstream protections mentioned in paragraph 2.6 is achieved for a 30 mcable length and 10 mm2 cross section.Circuit breaker capacity must be selected according to the installation, length and cross section of cables.Mode Industrial mode I/T network modeOverload, and BypassAC source in tolerance.Same as I/T network mode, but the UPSdoes not return to normal mode if overloadreleased.Load is transfered to Bypass ACsource.UPS returns to normal mode ifoverload released.Overload, and BypassAC source not intolerance.Load is transfered to Bypass AC sourcewith 10 milliseconds output break. TheUPS does not return to normal mode ifoverload released.The UPS shuts down and load is nottransfered to Bypass AC source.Output short circuit andBypass AC source intolerance.Load is transfered to Bypass AC source,the UPS returns to normal mode if theshort circuit is released by downstreamcircuit breaker action (see section 2.6).The load remains powered by theUPS.The UPS shuts down after 3 minutesif the short circuit remains.Output short circuit andBypass AC source notin tolerance.The load is transfered to Bypass AC sourcewith 10 milliseconds output break. TheUPS does not return to normal mode if theshort circuit is released by downstreamcircuit breaker action (see section 2.6).The load remains powered by theUPS. The UPS shuts down after 3minutes if the short circuit remains.Bypass ACNormal ACBypass ACNormal ACUpstreamcircuit breaker(not supplied)Downstreamcircuit breaker(not supplied)InputfuseOutputfuseUpstreamcircuit breaker(not supplied)Downstreamcircuit breaker(not supplied)InputfuseOutputfuseUpstreamcircuit breaker(not supplied)NormalAC sourcecircuitbreakerNormalAC sourcecircuitbreaker