2025 Generac Mobile Stationary Generators SG500
- Year 2025
- Make Generac Mobile
- Model Stationary Generators
2025 Generac Mobile Stationary Generators SG500
2025 Generac Mobile Stationary Generators SG500
Keep all your business’s essentials up and running with a Generac 500kW generator. It provides longer run times so everything can continue to operate effortlessly until power is restored. All of our industrial gas generators are completely cost effective and give you the best value for the output so you can afford more of what you need for your business. Generac is one of North America’s largest suppliers of power generation equipment. For more than five decades, Generac has designed and manufactured diesel, natural gas, and bi-fuel generators that meet the demands of any application.
Features may include:
GENERATOR ENCLOSURE- Generac manufactures its own enclosures, ensuring each unit combines the highest level of durability, noise reduction, weather resistance, and streamlined design.
- Generac builds its spark-ignited engines from the block up utilizing advanced engineering expertise.
- Generac industrial alternators are machine wound, machine inserted, and machine varnished for the ultimate in consistency.
- The Generac Power Zone® Digital Control Platform is a fully integrated and multipurpose family of controllers for Generac’s single genset and Modular Power Systems (MPS) applications.
- Generac's Modular Power Systems (MPS) boast a rate of up to 99.999% reliability, and are more cost-effective and flexible than single generators with the same load capacity.
Engine
Engine Manufacturer
Generac
Cylinder Liners
12
Engine Type
V12
Displacement
1,574.4 in3 (25.8 L)
Bore
5.19 in (132 mm)
Stroke
6.30 in (160 mm)
Compression Ratio
10.0:1
Intake Design
Air Method: Turbocharged/Aftercooled
Ignition
Electronic
Governor
Electronic
Cooling
Pressurized Closed Recovery | Closed Coolant Recovery System | UV/Ozone Resistant Hoses | Factory-Installed Radiator | 50/50 Ethylene Glycol Antifreeze | Radiator Drain Extension
Engine Power
Standby-Demand Response/Prime Horsepower at Rated kW: 729 hp / 656 hp | Standby-Demand Response/Prime Three-Phase 120/208 VAC @0.8pf: 500 kW/625 kVA, 1,737 Amps / 450 kW/563 kVA, 1,563 Amps | Standby-Demand Response/Prime Three-Phase 120/240 VAC @0.8pf: 500 kW/625 kVA, 1,505 Amps / 450 kW/563 kVA, 1,355 Amps | Standby-Demand Response/Prime Three-Phase 277/480 VAC @0.8pf: 500 kW/625 kVA, 753 Amps / 450 kW/563 kVA, 677 Amps | Standby-Demand Response/Prime Three-Phase 346/600 VAC @0.8pf: 500 kW/625 kVA, 602 Amps / 450 kW/563 kVA, 542 Amps
Rated Engine Speed
Standby-Demand Response/Prime: 1,800 RPM / 1,800 RPM
Fuel System
Fuel Type
Natural Gas
Fuel System
Carburetor: Down Draft | NPT Fuel Connection on Frame | Primary and Secondary Fuel Shutoff
Fuel Usage, 100% Load
Standby-Demand Response/Prime 25%: 2,550 scfh (72 m3/hr) / 2,431 scfh (69 m3/hr) | Standby-Demand Response/Prime 50%: 3,624 scfh (103 m3/hr) / 3,409 scfh (97 m3/hr) | Standby-Demand Response/Prime 75%: 4,770 scfh (135 m3/hr) / 4,426 scfh (125 m3/hr) | Standby-Demand Response/Prime 100%: 5,862 scfh (166 m3/hr) / 5,425 scfh (154 m3/hr)
Battery
Battery
Size: See battery index 0161970SBY | Voltage: (2) – 12 VDC
Battery Charger Input
Alternator: 60 A
Electric
Electrical
System Voltage: 24 VDC | Ground Polarity: Negative
Alternator
Standard Model: K0500124Y23 | Poles: 4 | Field Type: Revolving | Insulation Class - Rotor: H | Insulation Class - Stator. H | Total Harmonic Distortion: <5% | Telephone Interference Factor (TIF): <52 | Standard Excitation: Permanent Magnet | Bearings: Sealed Ball | Coupling: Direct via Flexible Disc | Voltage Regulator Type: Full digital | Regulation Accuracy (Steady State): ±0.25% | UL2200 GENprotect™ | Class H Insulation Material | 2/3 Pitch | Skewed Stator | Permanent Magnet Excitation | Sealed Bearing | Amortisseur Winding | Full Load Capacity Alternator
Operational
Operating Conditions
Frequency Regulation (Steady State): ±0.25%
Operating Speed
Fan: 1,640 RPM | Standby-Demand Response/Prime Piston: 1,890 ft/min (576 m/min) / 1,890 ft/min (576 m/min)
Operating Temperature, Maximum
Standby-Demand Response/Prime Maximum Operating Ambient Temperature: 122 °F (50 °C) / 122 °F (50 °C) | Standby-Demand Response/Prime Maximum Operating Ambient Temperature (Before Derate): See Bulletin No. 0199270SSD / See Bulletin No. 0199270SSD | Standby-Demand Response/Prime Exhaust Temp (Rated Output - Post Silencer): 1,380 °f (749 °C) / 1,355 °F (735 °C)
Hydraulics
Pump Type
Oil: Gear
Oil Filter
Type: Full-Flow Cartridge
Hydraulic Flow
Standby-Demand Response/Prime Coolant Flow: 225 gpm (852 Lpm) / 225 gpm (852 Lpm)
Airflow
Standby-Demand Response/Prime Air Flow (Fan Air Flow Across Radiator): 31,400 cfm (889 m3/min) / 31,400 cfm (889 m3/min) | Standby-Demand Response/Prime Flow at rated power: 935 cfm (26.5 m3/min) / 865 (cfm 24.5 m3/min) | Standby-Demand Response/Prime Exhaust Flow (Rated Output): 3,186 cfm (90.2 m3/min) / 2,907 cfm (82.3 m3/min)
Maximum Pressure
Operating Fuel Pressure: 11 - 14 in H2O (2.7 - 3.5 kPa) | Standby-Demand Response/Prime Maximum Additional Radiator Backpressure: 0.5 in H2O (0.12 kPa) / 0.5 in H2O (0.12 Kpa) | Standby-Demand Response/Prime BMEP: 204 psi (1,404 kPa) / 183 psi (1,263 kPa) | Standby-Demand Response/Prime Maximum Allowable Backpressure (Post Silencer): 0.75 inHg (2.54 kPa) / 0.75 inHg (2.54 kPa)
Dimensions
Dimensions
Fan Diameter: 44 in (1,118 mm)
Length
Open Set (Includes Exhaust Flex): 154.4 in (3,922 mm) | Weather Protected Enclosure: 207.4 in (5,268 mm) | Level 1 Sound Attenuated Enclosure: 247.5 in (6,287 mm) | Level 2 Sound Attenuated Enclosure: 207.4 in (5,268 mm) | Level 3 Sound Attenuated Enclosure: 232.0 in (5,893 mm)
Width
Open Set (Includes Exhaust Flex): 70.5 in (1,791 mm) | Weather Protected Enclosure: 70.9 in (1,801 mm) | Level 1 Sound Attenuated Enclosure: 71.0 in (1,803 mm) | Level 2 Sound Attenuated Enclosure: 70.9 in (1,801 mm) | Level 3 Sound Attenuated Enclosure: 76.9 in (1,953 mm)
Height
Open Set (Includes Exhaust Flex): 74.9 in (1,902 mm) | Weather Protected Enclosure: 80.0 in (2,032 mm) | Level 1 Sound Attenuated Enclosure: 80.0 in (2,032 mm) | Level 2 Sound Attenuated Enclosure: 114.1 in (2,898 mm) | Level 3 Sound Attenuated Enclosure: 129.2 in (3,282 mm)
Capacities
Oil capacity
Engine with Filter: 95 qt (90 L)
Cooling System
Standby-Demand Response/Prime Coolant System Capacity: 25 gal (93 L) / 25 gal (93 L)
Weights
Weight
Open Set (Includes Exhaust Flex): 9,386 - 9,739 lbs (4,257 - 4,417 kg) | Weather Protected Enclosure Steel: 11,576 - 11,929 lbs (5,250 - 5,410 kg) | Weather Protected Enclosure Aluminum: 10,489 - 10,841 lbs (4,757 - 4,917 kg) | Level 1 Sound Attenuated Enclosure Steel: 12,583 - 12,936 lbs (5,707 - 5,867 kg) | Level 1 Sound Attenuated Enclosure Aluminum: 10,921 - 11,274 lbs (4,953 - 5,113 kg) | Level 2 Sound Attenuated Enclosure Steel: 12,921 - 13,658 lbs (5,860 - 6,194 kg) | Level 2 Sound Attenuated Enclosure Aluminum: 11,066 - 11,565 lbs (5,019 - 5,245 kg) | Level 3 Sound Attenuated Enclosure: 15,950 - 16,303 lbs (7,234 - 7,394 kg)
Features
Features
Number of Main Bearings: 7 | Lifter Type: Solid | Fan Type: Pusher | Oil Drain Extension | Heavy Duty Air Cleaner | Factory Filled Oil and Coolant | Radiator Duct Adapter (Open Set Only) | Shipped Loose Catalyst Silencer (Open Set Only) | Oil Temperature Indication and Alarm | Battery Charging Alternator | Battery Cables | Battery Tray | Solenoid Activated Starter Motor | Internal Genset Vibration Isolation | Separation of Circuits - High/Low Voltage | Separation of Circuits - Multiple Breakers | Wrapped Exhaust Piping | Standard Factory Testing | Silencer Mounted in the Discharge Hood (Enclosed Units Only)
Construction Material
Connecting Rods: Steel Alloy | Cylinder Head: Cast Iron | Cylinder Liners: Cast Steel Alloy | Piston Type: Cast Aluminum Alloy | Crankshaft Type. Forged Steel Alloy | Intake Valve Material: High Temp Steel Alloy | Exhaust Valve Material: High Temp Steel Alloy | Hardened Valve Seats: High Temp Steel Alloy | Stainless Steel Flexible Exhaust Connection | Rubber-Booted Engine Electrical Connections
Warranty
Warranty
2 Year Limited Warranty (Standby and Demand Response Rated Units) | 1 Year Limited Warranty (Prime Rated Units)