DFEK Commercial Diesel Generator Set, 500kW Standby 60Hz , U.S. EPA, Stationary Emergency Application, 500DFEK, Diesel Genset, 60Hz, 500kW-Standby Rating, Duty Rating - Standby Power (ESP), Emission Certification, EPA, Tier 2, NSPS CI Stationary Emergency, Voltage - 277/480, 3 Phase, Wye, 4 Wire, Alternator-60Hz, 12 Lead, Broad Range, 125/105C, Alternator Heater, 120 Volt AC, Steel Sound Attenuated Level 2 Enclosure, with Exhaust System, Enclosure Color-Green, Steel, Louvers-Air Inlet, 24 Volts DC Spring Closed, Motor Opened, Louvers-Air Outlet, 24 Volts DC Spring Closed, Motor Opened, Distribution Panel-Prewired AC Features, Fuel Tank - Sub Base, 2525 Gallon, UL142 Compliant, Listing, ULC-S601-07, Alarm-High Fuel Fill, Fuel Water Separator, Control Mounting - Left Facing, Power Command 3.3 Controller, Paralleling Capable, LCD Control Display, Stop Switch - Emergency, Externally Mounted, Signals - Auxiliary, 8 Inputs/8 Outputs, Control Display Language ? English, Circuit Breaker or Entrance Box or Terminal Box - Right Only, Circuit Breaker or Entrance Box or Terminal Box, Left ? None, Circuit Breaker - 800A, Right Circuit Breaker on Right side, 3 - Pole, UL 600, IEC 690 100%, Circuit Breaker or Entrance Box or Terminal Box, Left ? None, Circuit Breaker or Entrance Box - Bottom Entry, Right Side, Engine Exhaust Connection ? None, Engine Air Cleaner - Normal Duty, External Battery Charger - 12 Amp, Regulated, Engine Cooling - Radiator, 40C Ambient, Shutdown - Low Coolant Level, Coolant Heater - 208/240/480 Volts AC, Below 40F Ambient Temperature, Engine Oil Heater - 120 Volts AC, Single Phase, Genset Warranty - 2 Years Base, Literature ? English, Packing - None, Base Mounted Housing, Annunciator-Panel Mounted With Enclosure (RS485), Service - start up and testing: includes load bank testing and led acid batteries