1Ø-1Ø 5KVA-10KVA iback UPS is a single conversion topology, Zer-transfer time, backup UPS that provides uninterupted Power to critical and common loads at the same time. DSP Controlled 5KVA/48VDC, 6KVA/72VDC, 7KVA/72VDC , 10KVA/120VDC.  Saves Electricity Bills by 35%-40%.