GTA28E, 770 HP, 8.5:1, Factory Certified for Emissions Catalyst, 5" Flange, NSPS 2/4/1 Duty Rating - Standby Power Listing - UL 2200 Natural Gas Enclosure - Sound Att, LEVEL 2, Galvaneal, Base Mtd, with Exhaust System Onan Green Enclosure Color Generator - HCI504D (ADS #306), 60Hz, Winding 311 - 12 Wire, 120C, 0.8pf Voltage - 277/480, 3ph Exciter / Regulator - PMG, 3 Phase Sensor Heater - Alternator, 120VAC Set Control - Power Command 3.3 MLD Controls Facing Left Radiator Cooled Shutdown - Low Coolant Level Coolant Heater_40°F MinAmbientTemp Sightglass on Radiator Engine Governor - Electronic, Isochronous Only Engine Starter - 24 VDC Motor Battery Charging Alternator - Normal Output Engine Air Cleaner - Normal Duty Lube Oil, Engine Filled Prior to Shipment Anti-Freeze - 50/50 Mix, System Filled Prior to Shipment Critical Grade Silencer, Carbon Steel Extension - Oil Drain Extension - Engine Coolant Drain Bargraph - AC Analog Meters Alarm - Audible, Engine Shutdown Manuals in English Battery Rack Battery Charger, 120/240 VAC Input, 10A / 24V Output Fuel Strainer - Gaseous, 3in NPT Flexible Fuel Connection - Gaseous, 3in NPT Relays - Genset Status (User Configured) Circuit Breaker - LSi_800A_100%_LEFT, 600/525V Genset Warranty - Standby Power 2 year / 1000 hours Std CB Mounting Option Drip Rails