MD300. Industrial Diesel Generator Set. 300 kw Diesel. primary codes and standards. Standby Power Rating 375kVA 300kW 60Hz

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1 PARAEING UNIT Industrial Diesel Generator Set EPA Certified Stationary Emergency 300 k Diesel 1 of 5 Standby Power Rating 375kVA 300k 60z Prime Power Rating* 338kVA 270K 60z Generator image used for illustration purposes only *EPA Certified Prime ratings are not available in the U.S. or its Territories for engine model year 2011 and beyond features benefits Generator Set = PROTOTYPE & TORSIONAY TESTED 4 PROVIDES A PROVEN UNIT = U2200 TESTED 4 ENSURES A QUAITY PRODUCT = RINOCOAT PAINT SYSTEM 4 IMPROVES RESISTANCE TO EEMENTS = IDE RANGE OF ENCOSURES AND TANKS 4 PROVIDES A SINGE SOURCE SOUTION Engine = EPA COMPIANT 4 ENVIRONMENTAY FRIENDY = INDUSTRIA TESTED, GENERAC APPROVED 4 ENSURES INDUSTRIA STANDARDS = POER-MATCED OUTPUT 4 ENGINEERED FOR PERFORMANCE = INDUSTRIA GRADE 4 IMPROVES ONGEVITY AND REIABIITY Alternator = TO-TIRDS PITC 4 EIMINATES ARMFU 3RD ARMONIC = AYER OUND ROTOR & STATOR 4 IMPROVES COOING = CASS MATERIAS 4 EAT TOERANT DESIGN = DIGITA 3-PASE VOTAGE CONTRO 4 FAST AND ACCURATE RESPONSE Controls = ENCAPSUATED BOARD / SEAED ARNESS 4 EASY, AFFORDABE REPACEMENT = 4-20mA VOTAGE-TO-CURRENT SENSORS 4 NOISE RESISTANT 24/7 MONITORING = SURFACE-MOUNT TECNOOGY 4 PROVIDES VIBRATION RESISTANCE = ADVANCED DIAGNOSTICS & COMMUNICATIONS 4 ARDENED REIABIITY primary codes and standards

2 300 k Diesel 2 of 5 MD300 ENGINE SPECIFICATIONS application and engineering data General Cooling System Make Generac Cooling System Type Closed Recovery EPA Emissions Compliance Stationary Emergency ater Pump Flow Pre-ubed, Self Sealing EPA Emissions Reference See Emissions Data Sheet Fan Type Pusher Cylinder # 6 Fan Speed (rpm) 2250 rpm Type In-ine Fan Diameter mm (in.) 762 (30.0) Displacement Coolant eater Standard attage 2000 Bore - mm (in.) 125 (4.92) Coolant eater Standard Voltage 240VAC Stroke - mm (in.) 140 (5.51) Compression Ratio 16.5:1 Fuel System Intake Air Method Turbocharged/Aftercooled Fuel Type Ultra ow Sulfur Diesel Fuel Cylinder ead Type 4-Valve Fuel Specifications ASTM Piston Type Aluminum Fuel Filtering (microns) 5 Crankshaft Type Dropped Forged Steel Fuel Inject Pump Make Electronic Fuel Pump Type Engine Driven Gear Engine Governing Injector Type Common Rail Governor Electronic Isochronous Engine Type Direct Injection Frequency Regulation (Steady State) ± 0.25% Fuel Supply ine - mm (in.) 12.7(½") Fuel Return ine - mm (in.) 12.7(½") ubrication System Oil Pump Type Gear Engine Electrical System Oil Filter Type Full-Flow System Voltage 24VDC Crankcase Capacity - (qts) 30 (31.68) Battery Charging Alternator Std Battery Size (at 0ºC) 1155 CCA Battery Group 8D Battery Voltage (2) - 12VDC Ground Polarity Negative ATERNATOR SPECIFICATIONS Standard Model 520 mm Generac Voltage Regulator Type Digital Poles 4 Number of Sensed Phases All Field Type Revolving Regulation Accuracy (Steady State) ± 0.25% Insulation Class - Rotor Insulation Class - Stator Total armonic Distortion < 5% Telephone Interference Factor (TIF) < 50 Standard Excitation Permanent Magnent Bearings Single Sealed Cartridge Coupling Direct, Flexible Disc oad Capacity - Standby 100% Prototype Short Circuit Test Yes CODES AND STANDARDS COMPIANCE (ERE APPICABE) PARAEING CONTROS NFPA 99 BS5514 AUTO-SYNCRONIZATION PROCESS NFPA 110 SAE J1349 ISOCRONOUS OAD SARING ISO DIN6271 REVERSE POER PROTECTION ISO 1708A.5 IEEE C62.41 TESTING MAXIMUM POER PROTECTION ISO 3046 NEMA ICS 1 EECTRICAY OPERATED, MECANICAY ED PARAEING SITC U2200 SYNC CECK SYSTEM INDEPENDENT ON-BOARD PARAEING OPTIONA PROGRAMMABE OGIC FU AUTO BACK-UP CONTRO (PS) Rating Definitions: Standby Applicable for a varying emergency load for the duration of a utility power outage with no overload capability. (Max. load factor = 70%) Prime Applicable for supplying power to a varying load in lieu of utility for an unlimited amount of running time. (Max. load factor = 80%) A 10% overload capacity is available for 1 out of every 12 hours.

3 operating data (60z) POER RATINGS (k) Three-Phase 288 k Amps: k Amps: 937 Three-Phase 300 k Amps: k Amps: 406 Three-Phase 300 k Amps: k Amps: k Diesel 3 of 5 STARTING CAPABIITIES (skva) skva vs. Voltage Dip 480VAC 208/240VAC Alternator k 10% 15% 20% 25% 30% 35% 10% 15% 20% 25% 30% 35% Standard Upsize Upsize FUE Fuel Consumption Rates* Fuel Pump ift - in (mm) Percent oad gph lph Percent oad gph lph 36 (900) 25% % % % Total Fuel Pump Flow (Combustion + Return) 75% % gph 100% % * Refer to "Emissions Data Sheet" for maximum fuel flow for EPA and SCAQMD permitting purposes. COOING Coolant Flow per Minute gpm (lpm) 95 (360) 95 (360) eat Rejection to Coolant BTU/hr 814, ,673 Inlet Air cfm (m3/min) 14,505 (411) 14,505 (411) Max. Operating Radiator Air Temp Fº (Cº) 122 (50) 122 (50) Max. Operating Ambient Temperature Fº (Cº) 104 (40) 104 (40) Coolant System Capacity gal () 16.6 (63) 16.6 (63) Maximum Radiator Backpressure in 2 O COMBUSTION AIR REQUIREMENTS Flow at Rated Power cfm (m3/min) 850 (24.07) 765 (21.67) ENGINE Rated Engine Speed rpm orsepower at Rated k** hp Piston Speed ft/min BMEP psi ** Refer to Emissions Data Sheet for maximum bp for EPA and SCAQMD permitting purposes. EXAUST Exhaust Flow (Rated Output) cfm (m 3 /min) 2240 (63.4) 2016 (57.1) Max. Backpressure (Post Silencer) ing (Kpa) 1.5 (5.1) 1.5 (5.1) Exhaust Temp (Rated Output) ºF (ºC) 1020 (549) 918 (492) Exhaust Outlet Size (Open Set) NPT (male) (4) (4) Deration Operational characteristics consider maximum ambient conditions. Derate factors may apply under atypical site conditions. Please consult a Generac Power Systems Industrial Dealer for additional details. All performance ratings in accordance with ISO3046, BS5514, ISO8528 and DIN6271 standards.

4 300 k Diesel 4 of 5 MD300 GENERATOR SET Genset Vibration Isolation Std IBC Seismic Certified/Seismic Rated Vibration Isolators Opt Extended warranty Opt Gen-ink Communications Software Opt Steel Enclosure Opt Aluminum Enclosure Opt Enclosure ighting Kits Opt ENGINE SYSTEM General Oil Drain Extension Std Oil Make-Up System Opt Oil eater Opt Air cleaner Std Fan guard Std Radiator duct adapter Std Industrial Exhaust Silencer Std Critical Exhaust Silencer Opt Fuel System Fuel lockoff solenoid Std Secondary fuel filter Std Stainless steel flexible exhaust connection Std Flexible fuel lines Opt Primary fuel filter Opt Single all Tank (Export Only) - U 142 Fuel Tank Opt Cooling System 120VAC Coolant eater Opt 208VAC Coolant eater Opt 240VAC Coolant eater Std Other Coolant eater - Closed Coolant Recovery System Std UV/Ozone resistant hoses Std Factory-Installed Radiator Std Radiator Drain Extension Std Engine Electrical System Battery charging alternator Std Battery cables Std Battery tray Std Battery box Opt Battery heater Opt Solenoid activated starter motor Std 10A U float/equalize battery charger Opt Rubber-booted engine electrical connections Std ATERNATOR SYSTEM U2200 GENprotect Std Main ine Circuit Breaker (Output connections on paralleling switch) Std Alternator Upsizing Opt Anti-Condensation eater Opt Tropical coating Opt Permanent Magnet Generator Std CONTRO SYSTEM standard features and options Control Panel Digital Control Panel - Dual 4x20 Display na Digital G-100 Control Panel - Touchscreen na Digital G-200 Paralleling Control Panel - Touchscreen Std Programmable Crank imiter Std 21-ight Remote Annunciator Opt Remote Relay Panel (8 or 16) Opt 7-Day Programmable Exerciser Std Special Applications Programmable PC Std RS-232 Std RS-485 Std All-Phase Sensing DVR Std Full System Status Std Utility Monitoring (Req. -Transfer Switch) Std 2-ire Start Compatible Std Power Output (k) Std Power Factor Std Reactive Power Std All phase AC Voltage Std All phase Currents Std Oil Pressure Std Coolant Temperature Std Coolant evel Std Oil Temperature Opt Fuel Pressure Std Engine Speed Std Battery Voltage Std Frequency Std Date/Time Fault istory (Event og) Std ow-speed Exercise - Isochronous Governor Control Std -40deg C - 70deg C Operation Std aterproof Plug-In Connectors Std Audible Alarms and Shutdowns Std Not in Auto (Flashing ight) Std Auto/Off/Manual Switch Std E-Stop (Red Mushroom-Type) Std Remote E-Stop (Break Glass-Type, Surface Mount) Opt Remote E-Stop (Red Mushroom-Type, Surface Mount) Opt Remote E-Stop (Red Mushroom-Type, Flush Mount) Opt NFPA 110 evel I and II (Programmable) Std Remote Communication - RS232 Std Remote Communication - Modem Opt Remote Communication - Ethernet Opt PS Full Auto Back-Up for PM-SC Opt Alarms (Programmable Tolerances, Pre-Alarms and Shutdowns) ow Fuel Opt Oil Pressure (Pre-programmed ow Pressure Shutdown) Std Coolant Temperature (Pre-programmed igh Temp Shutdown) Std Coolant evel (Pre-programmed ow evel Shutdown) Std Oil Temperature Std Engine Speed (Pre-programmed Overspeed Shutdown) Std Voltage (Pre-programmed Overvoltage Shutdown) Std Battery Voltage Std

5 dimensions, weights and sound levels OPEN SET RUN TIME OURS USABE CAPACITY (GA) T dba* NO TANK k Diesel 5 of 5 STANDARD ENCOSURE RUN TIME OURS USABE CAPACITY (GA) T dba* NO TANK EVE 1 ACOUSTIC ENCOSURE RUN TIME OURS USABE CAPACITY (GA) T dba* NO TANK EVE 2 ACOUSTIC ENCOSURE 78 RUN TIME OURS USABE CAPACITY (GA) T dba* NO TANK * All measurements are approximate and for estimation purposes only. eights are without fuel in tank. Sound levels measured at 23ft (7m) and does not account for ambient site conditions. Tank Options MDEQ OPT Florida DERM/DEP OPT Chicago Fire Code OPT IFC Certification CA UC CA Other Custom Options Available from your Generac Industrial Power Dealer YOUR FACTORY RECOGNIZED GENERAC INDUSTRIA DEAER Specification characteristics may change without notice. Dimensions and weights are for preliminary purposes only. Please consult a Generac Power Systems Industrial Dealer for detailed installation drawings. Generac Power Systems, Inc. S Y. 59, aukesha, I generac.com 2012 Generac Power Systems, Inc. All rights reserved. All specifications are subject to change without notice. Bulletin SBY-C / Printed in U.S.A. 02/28/12