60 | System Specificationsw w w . d e l l . c o m | s u p p o r t . d e l l . c o m Environmental ParametersPower Supplies System Power RequirementsTable D-1. AC Power System SpecificationsTable D-2. DC Power System SpecificationsParameter SpecificationsOperating:Temperature 40° to 105°F (5° to 40°C)Maximum altitude No performance degradation to 10,000 feet (3,048 meters)Relative humidity 5 to 85 percent, noncondensingNon-operating:Temperature -40° to 158°F (-40° to 70°C)Maximum altitude 15,000 feet (4,572 meters)Relative humidity 5 to 95 percent, noncondensingParameter SpecificationsNominal Input Voltage 100 - 240 VAC 50/60 HzMaximum AC Power Supply Input Current (based on 800Woutput for 100/120V line and 1200W output for 200/240Vline.)7.4 A @ 100 VAC per AC Power Supply6.2 A @ 120 VAC per AC Power Supply5.2 A @ 200 VAC per AC Power Supply4.3 A @ 240 VAC per AC Power SupplyMaximum System Power Input 2.2 KVA @ 100/120 VAC2.0 KVA @ 200/240 VACMaximum System Power Consumption 2,149 W @100/120 VAC2,000 W @ 200/240 VACMaximum Thermal Output (2,049 W) for 100/120 V 6,989 BTU/hourMaximum Thermal Output (1,900 W) for 200/240 V 6,483 BTU/hourParameter SpecificationsNominal Input Voltage -44 to 60 VDCMaximum Current Draw (per DC PEM) 60 AMaximum System Power Consumption 1,740 WMaximum Thermal Output (1,640 W) 5,596 BTU/hour