... .With external battery bank, 5.EPO and Bypass. Online three phase uninterruptible power systemsKEY FEATURES:Online double conversion VFI provide pure ... and reliability for kinds of load: transformer, emergency light, electric facility, industry processes, etc.Parallel redundant, parallel up to ... capacity10'/1'/18"(150/175/200% nominal current) Online three phase uninterruptible power systems (120KVA)