1 of 23POWER WIRING INSTALLATION NOTES071608D164201603-5DESCRIPTION:DATE:DRAWING NO: SHEET:REVISION:INSTALLATION INFORMATIONEATON Powerware® 9390 UPS (20–80 kVA) Installation and Operation Manual 164201603 Rev 2 www.powerware.com A-11Table E. INPUT/OUTPUT Ratings & External Wiring Requirements for the Powerware 9390-40/20Units Rating 50/60 HzBasic Unit Rating at 0.9 laggingpF loadkVAkW20182018201820182018Input and Bypass InputOutputVOLTSVOLTS208/220208/220380380400400415415480480AC Input to UPS Rectifier(0.98 min. pF)Full Load Current plus BatteryRecharge Current(3) Phases, (1) Ground A Amps 60 34 33 32 30Minimum Conductor SizeNumber per PhaseAWG or kcmil(each)2(1)6(1)6(1)6(1)6(1)AC Input to UPS BypassFull Load Current(3) Phases, (1) Neutral-if required,(1) Ground B Amps 56/53 31 29 28 24Minimum Conductor SizeNumber per PhaseAWG or kcmil(each)2(1)6(1)6(1)6(1)6(1)DC Input from Battery to UPS(1) Positive, (1) NegativeCVdcAmps@(2.0V/cell)384-48051432-48051432-48051432-48051432-48051Minimum Conductor SizeNumber per PoleAWG or kcmil(each)2(1)2(1)2(1)2(1)2(1)AC Output to Critical LoadFull Load Current(3) Phases, (1) Neutral-if required,(1) Ground DAmps 56/53 31 29 28 24Minimum Conductor SizeNumber per PhaseAWG or kcmil(each)2(1)6(1)6(1)6(1)6(1)Neutral Bonding JumperMinimum Conductor SizeNumber (See Note 7) - AWG or kcmil(each)4(1)6(1)6(1)6(1)6(1)NOTE Callout letters A, B, C, and D map to Drawing 164201603-4, sheets 1 of 5,3 of 5, 4 of 5, and 5 of 5.Read and understand the following notes while planning and performing the installation:1. Refer to national and local electrical codes for acceptable external wiring practices.2. Material and labor for external wiring requirements are to be provided by designatedpersonnel.3. For external wiring, use 90C copper wire. See the appropriate information in Table Ethrough Table J. Wire sizes are based on using the specified breakers.4. Wire ampacities are chosen from Table 310-16 of the NEC. Wire is 90C specification.5. If installing, as part of the UPS system, a maintenance bypass without a rectifier inputbreaker, a minimum of two separate feeds with upstream feeder breakers, or one feed withtwo upstream feeder breakers, must be provided: one for the UPS and one for themaintenance bypass input. DO NOT use one feed or a single‐feeder breaker to supplyboth the UPS and the maintenance bypass.
