SG300 12.9L | 300 kW

1 UL2200, UL508, UL142, UL498 NFPA70, 99, 110, 37 NEC700, 701, 702, 708 ISO9001, 8528, 3046, 7637, Pluses #2b, 4 NEMA ICS10, MG1, 250, ICS6, AB1 ANSI used for illustration purposes only*EPA Certified Prime ratings are not available in the or its Territories.*Built in the USA using domestic and foreign partsSPEC SHEET1 OF 6 STANDBY POWER RATINGPRIME POWER RATING* CODES AND STANDARDSG enerac products are designed to the following standards:POWERING AHEADFor over 50 years, Gen erac h as led t h e in d u st r y w it h in n ovat ive d esig n an d su p erior m an u fact u rin erac en su res su p erior q u alit y b y d esig n in g an d m an u fact u rin g m ost of it s g en erator com p on en t s, in clud in g altern ators, en closu res an d b ase t an ks, con t rol system s an d com m u n icat ion s soft erac s g en set s u t ilize a w id e variet y of op t ion s, config u rat ion s an d arran g em en t s, allow in g u s to m eet t h e st an d b y p ower n eed s of p ract ically ever y ap p licat erac search ed g lob ally to en su re t h e m ost reliab le en g in es p ower ou r g en erators.

2 We ch oose on ly en g in es th at h ave alread y b een p roven in h eav y-d u t y in d u st rial ap p licat ion u n d er ad verse con d it ion erac is com m it ted to en su rin g ou r cu stom ers ser vice su p p ort con t in u es after t h eir g en erator p u rch | | 300 kWINDUSTRIAL SPARK-IGNITED GENERATOR SETEPA Certified Stationary Emergency300 kW, 375 kVA, 60 Hz270 kW, 338 kVA, 60 HzIBC 2009, CBC 2010, IBC 2012, ASCE 7-05, ASCE 7-10, ICC-ES AC-156 (2012)ENGINE SYSTEMG eneral Oil Drain Extension Air Cleaner Fan Guard Stainless Steel flexible exhaust connection Factory Filled Oil & Coolant Radiator Duct Adapter (open set only)Fuel System Flexible fuel lines - NPT Connection Primary and secondary fuel filtersCooling System Closed Coolant Recovery System UV/Ozone resistant hoses Factory-Installed Radiator 50/50 Ethylene glycol antifreezeEngine Electrical System Battery charging alternator Battery cables Battery tray Rubber-booted engine electrical connectionsALTERNATOR SYSTEM Class H insulation material 2/3 Pitch Skewed Stator Brushless Excitation Sealed Bearings Amortisseur winding Full load capacity alternatorGENERATOR SET ENCLOSURE (IF SELECTED) Rust-proof fasteners with nylon washers to protect finish High performance sound-absorbing material (L1 & L2)

3 Gasketed doors Stamped air-intake louvers CONTROL SYSTEMC ontrol Panel Single point ground 15 channel data logging msec high speed data logging Alarm information automatically comes up on the displayAlarms Oil Pressure (Pre-programmable Low Pressure Shutdown) Coolant Temperature (Pre-programmed High Temp Shutdown) Coolant Level (Pre-programmed Low Level Shutdown) Low Fuel Pressure Alarm Engine Speed (Pre-programmed Over speed Shutdown) Battery Voltage Warning Alarms & warnings time and date stamped Alarms & warnings for transient and steady state conditions Snap shots of key operation parameters during alarms & warnings Alarms and warnings spelled out (no alarm codes) UL2200 Genprotect TMInternal Genset Vibration IsolationSeparation of circuits - high/low voltageSeparation of circuits - multiple breakersWrapped Exhaust PipingStandard Factory Testing2 Year Limited Warranty (Standby rated Units)1 Year Warranty (Prime rated units)Silencer mounted in the discharge hood (enclosed only) Air discharge hoods for radiator-upward pointing Stainless steel lift off door hingesStainless steel lockable handlesRhino Coat - Textured polyester powder coat Digital H Control Panel - Dual 4x20 DisplayProgrammable Crank Limiter7-Day Programmable ExerciserSpecial Applications Programmable PLCRS-232/485 All-Phase Sensing DVRFull System StatusUtility MonitoringLow Fuel Pressure Indication2-Wire Start CompatiblePower Output (kW)

4 Power FactorkW Hours, Total & Last Run Real/Reactive/Apparent PowerAll Phase AC VoltageAll Phase CurrentsOil PressureCoolant TemperatureCoolant LevelEngine SpeedBattery VoltageFrequencyDate/Time Fault History (Event Log)Isochronous Governor ControlWaterproof/sealed ConnectorsAudible Alarms and ShutdownsNot in Auto (Flashing Light)Auto/Off/Manual SwitchE-Stop (Red Mushroom-Type)NFPA110 Level I and II (Programmable)Customizable Alarms, Warnings, and EventsModbus protocolPredictive Maintenance algorithmSealed BoardsPassword parameter adjustment protection Radiator drain extension Solenoid activated starter motor Critical Exhaust Silencer (enclosed only)SPEC SHEET2 OF 6SG300 | | 300 kWINDUSTRIAL SPARK-IGNITED GENERATOR SETEPA Certified Stationary EmergencySTANDARD FEATURESО Gen-Link Communications Software(English Only)О AC/DC Enclosure lighting KitО 5 Year WarrantyО 5 Year Extended WarrantyRATING DEFINITIONSENGINE SYSTEMG eneralО Engine Block HeaterО Oil HeaterО Air Filter Restriction indicatorО Stone Guad (Open Set Only)Engine Electrical SystemО 10A UL battery chargerО Battery WarmerENCLOSUREО Standard EnclosureО Level 1 Sound AttenuationО Level 2 Sound AttenuationО Steel EnclosureО Aluminum EnclosureО 120 VAC Enclosure lighting KitО 12 VDC Enclosure lighting KitО 150 MPH Wind KitCONTROL SYSTEMALTERNATOR SYSTEMО Alternator UpsizingО Tropical coatingО Anti-Condensation HeaterCIRCUIT BREAKER OPTIONSО Main Line Circuit BreakerО 2nd Main Line Circuit BreakerО Shunt Trip and Auxiliary ContactО Electronic Trip BreakerGENERATOR SETО Extended Factory Testing (3 Phase Only)

5 О 8 Position Load CenterО 10 Year Extended WarrantyО 7 Year Extended WarrantyО 2 Year Extended Warranty О NFPA 110 CompliantО Remote Relay Board (8 or 16)О Oil Temperature Sender with IndicationAlarmО Remote E-Stop (Break Glass-Type,Surface Mount)О Remote E-Stop (Red Mushroom-Type,Surface Mount)О Remote E-Stop (Red Mushroom-Type,Flush Mount)О Remote Communication - BridgeО Remote Communication - EthernetО 10A Run Relay, 12 outputsО Ground Fault Indication and ProtectionFunctionsENGINEERED OPTIONSENGINE SYSTEMО Coolant heater ball valvesО Fluid containment pansALTERNATOR SYSTEMО 3rd Breaker SystemsCONTROL SYSTEMО Spare inputs (x4) / outputs (x4) - H Panel OnlyО Battery Disconnect SwitchGENERATOR SETО Special TestingENCLOSUREО Motorized DampersО Door Alarm Switch О Intrusion Ambient Heaters Standby - Applicable for a varying emergency load for the duration of a utility power outage with no overload - Applicable for supplying power to a varying load in lieu of utility for an unlimited amount of running time.

6 A 10% overload capacity is available for 1 out of every 12 hours. The Prime Power option is only available on International applications. Power ratings in accordance with ISO 8528-1, Second Edition 3 OF 6 CONFIGURABLE OPTIONSSPEC SHEETSG300 | | 300 kWINDUSTRIAL SPARK-IGNITED GENERATOR SETEPA Certified Stationary EmergencyConnecting RodsCarbon SteelCylinder HeadDuctile IronCylinder LinersAltronic CD1 Electronic+/- SPECIFICATIONSG eneralNumber of Main Bearings7 MakeGeneracCylinder #6 TypeIn-lineDisplacement - L (cu In) ( )Bore - mm (in)135 ( )Stroke - mm (in)150 ( )Compression :1 Intake Air MethodTurbocharged/AftercooledCylinder Head TypeCast Iron GT250, OHVP iston TypeAluminumCrankshaft TypeDuctile IronEngine GoverningGovernorFrequency Regulation (Steady State)Lubrication SystemOil Pump TypeGearOil Filter TypeFull-Flow CartridgeCrankcase Capacity - L (qts) ( )Cooling SystemCooling System TypePressurized Closed RecoveryWater Pump Flow -gal/min (l/min)94 (356)Fan TypePusherFan Speed (rpm)2250 Fan Diameter mm (in)863 (34)Coolant Heater Wattage2000 Coolant Heater Standard Voltage240 VFuel SystemOperating Fuel Pressure (Optional)7 - 15 H2 OFuel TypeNatural GasCarburetorDown DraftSecondary Fuel RegulatorStandardFuel Shut Off RegulatorStandardOperating Fuel Pressure (Standard)11 - 15 H2 OEngine Electrical SystemSystem Voltage24 VDCB attery Charging AlternatorStandardBattery SizeSee Battery Index 0161970 SBYB attery Voltage(2)

7 12 VDCG round PolarityNegativeALTERNATOR SPECIFICATIONSS tandard Model520mmPoles4 Field TypeRevolvingInsulation Class - RotorHInsulation Class - StatorHTotal Harmonic Distortion<5% Telephone Interference Factor (TIF)<50 Standard ExcitationPermanent MagnetBearingsSealed BallCouplingDirect, Flexible DiscPrototype Short Circuit TestYesVoltage Regulator TypeFull DigitalNumber of Sensed Phases3 Regulation Accuracy (Steady State) TypeSolidIntake Valve MaterialSpecial Heat-Resistant SteelExhaust Valve MaterialAlloy Steel, High TempHardened Valve SeatsAlloy Steel, High Temp4 OF 6 APPLICATION AND ENGINEERING DATASPEC SHEETSG300 | | 300 kWINDUSTRIAL SPARK-IGNITED GENERATOR SETEPA Certified Stationary EmergencyStandbyAir Flow (inlet air combustion and radiator)ft /min (m3/in)3 Coolant Flow per Minute gal/min (l/min)Coolant System Capacitygal (l)Heat Rejection to CoolantBTU/hrMax. Operating Ambient Temperature (before derate) F ( C)Maximum Radiator Backpressurein H2O16,712 (4732)94 (356)19 ( )945,659122 ( ) Gas - ft3/hr (m3/hr)Percent LoadStandby25%50%75%100%* Fuel supply installation must accommodate fuel consumption rates at 100% (35)2134 (60)3040 (86)3937 (112)POWER RATINGSN atural Gas300 kWAmps: 1041300 kWAmps: 902300 kWAmps: 451300 kWAmps:Three-Phase 120/208 VAC 120/240 VAC 277/480 VAC 347/600 VAC CONSUMPTION RATES*COOLING361sKVA vs.

8 Voltage Dip480 VAC208/240 VACA lternatorkW10%15%20%25%30%35%10%15%20%25 %30%35%Standard3003034546057579081059227 341454568681784 STARTING CAPABILITIES (sKVA)5 OF ( )StandbyRated Engine Speedrpm2150 Horsepower at Rated kW**hp477 Piston Speed ft/minBMEPpsi** Refer to Emissions Data Sheet for maximum bHP for EPA and SCAQMD permitting Flow (Rated Output)cfm (m3/min)2076 (59)inHg (Kpa) ( )Exhaust Temp (Rated Output - post silencer) F ( C)1350 (732)Exhaust Outlet Size (Open Set)mm (in)2116269 Max. Backpressure (Post Turbo)COMBUSTION AIR REQUIREMENTENGINEEXHAUSTOPERATING DATASPEC SHEETSG300 | | 300 kWINDUSTRIAL SPARK-IGNITED GENERATOR SETEPA Certified Stationary EmergencyFlow at Rated Power cfm (m3/min) Flex (No Silencer)Deration Operational characteristics consider maximum ambient conditions. Derate factors may apply under atypical site consult a Generac Power Systems Industrial Dealer for additional details.

9 All performance ratings in accordance with ISO3046, BS5514, DIN6271 No 0K4299 Rev. G 08/19/15 Generac Power Systems, Inc. | Box 8 | Waukesha, WI 53187P: (262) 544-4811 2015 Generac Power Systems, Inc. All rights reserved. All specifications are subject to change without OF 6 DIMENSIONS AND WEIGHTS*OPEN SET (Includes Exhaust Flex)L x W x H in (mm) ( ) x ( ) x ( )Weight lbs (kg)6711 (3044)STANDARD ENCLOSUREL x W x H in (mm) ( ) x ( ) x ( )Weight lbs (kg)Steel: 8276 (3754)Aluminum: 7485 (3394)LEVEL 1 ACOUSTIC ENCLOSUREL x W x H in (mm) ( ) x ( ) x ( )Weight lbs (kg)Steel: 8739 (3964)Aluminum: 7681 (3484)LEVEL 2 ACOUSTIC ENCLOSUREL x W x H in (mm) ( ) x ( ) x ( )Weight lbs (kg)Steel: 9312 (4224)Aluminum: 7928 (3596)Specification characteristics may change without notice. Please consult a Generac Power Systems Industrial Dealer for detailed installation FACTORY RECOGNIZED GENERAC INDUSTRIAL DEALERSPEC SHEETSG300 | | 300 kWINDUSTRIAL SPARK-IGNITED GENERATOR SETEPA Certified Stationary Emergency*All measurements are approximate and for estimation purposes only.

10 Sound levels measured at 23 ft (7M) and does not account for ambient site conditions.