Control panel LED status display with load and battery bar-graphs and On Line : On Battery : Replace Battery : Overload and Bypass Indicators Audible Alarm Alarm when on battery : distinctive low battery alarm : overload continuous tone alarm Emergency Power Off (EPO) Yes Surge Protection and FilteringFiltering Full time multi-pole noise filtering : 0.3% IEEE surge let-through : zero clamping response time : meets UL 1449 PhysicalMaximum Height 432.00 mm Maximum Width 263.00 mm Maximum depth 663.00 mm Rack Height 6U Net Weight 110.91 KG Shipping Weight 129.09 KG Shipping Height 552.00 mm Shipping Width 597.00 mm Shipping Depth 991.00 mm Color Black Units per Pallet 1.00 EnvironmentalOperating Environment 0 - 40 °C Operating Relative Humidity 0 - 95% Operating Elevation 0-3000 meters Storage Temperature -15 - 45 °C Storage Relative Humidity 0 - 95% Storage Elevation 0-15000 meters