2025 Generac Mobile Stationary Generators SG625
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- Model Stationary Generators
2025 Generac Mobile Stationary Generators SG625
2025 Generac Mobile Stationary Generators SG625
Keep all your business’s essentials up and running with a Generac 625kW generator. This natural gas generator is designed and optimized for high load acceptance and fast transient response, per NFPA 110 emergency requirements. Take advantage of a durable enclosure that utilizes the highest level of noise reduction and weather resistance. 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
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.
- With this nat gas generator, 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
4 cycle
Displacement
2,068 in3 (33.9 L)
Bore
5.9 in (150 mm)
Stroke
6.30 in (160 mm)
Compression Ratio
10.0:1
Intake Design
Air Method: Turbocharged/Aftercooled
Ignition
Electronic
Governor
Electronic
Cooling
Forced Circulation by Centrifugal Pump | Closed Coolant Recovery System | Factory-Installed Radiator | Radiator Drain Extension | 50/50 Ethylene Glycol Antifreeze
Engine Power
Horsepower at Rated kW: 941 hp | Three-Phase 120/208 VAC @0.8pf: 625 kW/781 kVA / 2,171 Amps | Three-Phase 120/240 VAC @0.8pf: 625 kW/781 kVA / 1,882 Amps | Three-Phase 277/480 VAC @0.8pf: 625 kW/781 kVA / 941 Amps | Three-Phase 346/600 VAC @0.8pf: 625 kW/781 kVA / 753 Amps
Rated Engine Speed
1,800 RPM
Fuel System
Fuel Type
Natural Gas
Fuel System
Carburetor: Down Draft | Primary and Secondary Fuel Shutoff
Fuel Usage, 100% Load
25%: 2,725 scfh (77.2 m3/hr) | 50%: 3,923 scfh (111.1 m3/hr) | 75%: 5,294 scfh (149.9 m3/hr) | 100%: 6,847 scfh (193.9 m3/hr)
Battery
Battery
See: Battery Index 0161970SBY | Voltage: (4) – 12 VDC
Electric
Electrical
System Voltage: 24 VDC | Ground :Polarity Negative
Alternator
Standard Model: K0732124Y22 | Poles: 4 | Field type: Rotating | Insulation class - Rotor: H | Insulation class - Stator: H | Total harmonic distortion: <5% | Telephone Interference Factor (TIF): <50 | Standard excitation: Permanent Magnet | Bearings: Single | 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 Bearings | Amortisseur Winding | Low Temperature Rise < (120 °C)
Operational
Operating Conditions
Frequency Regulation (Steady State): ±0.25%
Operating Speed
Fan: 1,080 RPM | Piston: 1,890 ft/min (576 m/min)
Operating Temperature, Maximum
Maximum Operating Ambient Temperature: 122 °F (50 °C) | Maximum Operating Ambient Temperature (Before Derate): See Bulletin No. 0199270SSD | Exhaust Temp (Rated Output - Post Silencer): 1,166 °f (630 °C)
Hydraulics
Pump Type
Oil: Gear Driven
Oil Filter
Type: Full Flow Spin-On Cartridge
Hydraulic Flow
Coolant Flow: 291 gpm (1,101 Lpm)
Airflow
Air Flow (Fan Air Flow Across Radiator) — Open Set: 34,000 cfm (962.8 m3/min) | Flow at Rated Power: 1,394 cfm (39.5 m3/min) | Exhaust Flow (Rated Output): 4067 cfm (115 m3/min)
Maximum Pressure
Operating Fuel Pressure: 14–20 in H2O (3.5–5.0 kPa) | Maximum Radiator Backpressure: 0.5 in H2O (0.12 kPa) | BMEP: 188 psi (1,301 kPa) | Maximum Allowable Back Pressure (Post Silencer): 0.75 in H2O (2.54 kPa)
Dimensions
Dimensions
Fan Diameter: 64 in (1,626 mm)
Length
Open Set: 178.3 in (4,528 mm) | Weather Protected Enclosure: 201.0 in (5,105 mm) | Level 1 Sound Attenuated Enclosure: 287.0 in (7,290 mm) | Level 2 Sound Attenuated Enclosure: 340.0 in (8,636 mm)
Width
Open Set: 82.6 in (2,098 mm) | Weather Protected Enclosure: 96.0 in (2,438 mm) | Level 1 Sound Attenuated Enclosure: 96.0 in (2,438 mm) | Level 2 Sound Attenuated Enclosure: 151.4 in (3,845 mm)
Height
Open Set: 110.3 in (2,801 mm) | Weather Protected Enclosure: 155.2 in (3,941 mm) | Level 1 Sound Attenuated Enclosure: 153.0 in (3,886 mm) | Level 2 Sound Attenuated Enclosure: 153.0 in (3,886 mm)
Capacities
Oil capacity
Engine Oil Capacity with filter: 126.8 qt (120 L)
Cooling System
Coolant System Capacity: 55 gal (208 L)
Weights
Weight
Open Set: 14,352 - 14,932 lbs (6,510 - 6,733 kg) | Weather Protected Enclosure Steel: 18,051 - 18,631 lbs (8,188 - 8,451 kg) | Weather Protected Enclosure Aluminum: 17,220 - 17,800 lbs (7,811 - 8,074 kg) | Level 1 Sound Attenuated Enclosure Steel: 21,876 - 22,456 lbs (9,923 - 10,186 kg) | Level 1 Sound Attenuated Enclosure Aluminum: 19,193 - 19,773 lbs (8,706 - 8,969 kg) | Level 2 Sound Attenuated Enclosure Steel: 22,901 - 23,481 lbs (10,388 - 10,651 kg) | Level 2 Sound Attenuated Enclosure Aluminum: 19,634 - 20,214 lbs (8,906 - 9,169 kg)
Features
Features
Number of Main Bearings: 7 | Cylinder Head: 4 Valve | Lifter Type: Solid | Fan Type: Pusher | Oil Drain Extension | Heavy Duty Air Cleaner | Level 1 Fan and Belt Guard (Open Set Only) | Radiator Duct Adapter (Open Set Only) | Critical Silencer/Catalyst | Coolant Heater Ball Valves | Factory Filled Oil and Coolant | Oil Temperature Sender with Indication Alarm | Battery Charging Alternator | Battery Cables | Battery Tray | Rubber-Booted Engine Electrical Connections | Solenoid Activated Starter Motor | Spring Isolators Under Frame | Separation of Circuits - High/Low Voltage | Separation of Circuits - Multiple Breakers | Wrapped Exhaust Piping (Enclosed Units Only) | Standard Factory Testing | Ready to Accept Full Load in <10 Seconds
Construction Material
Piston Type: Cast Aluminum Alloy | Crankshaft Type: Chromium Molybdenum Steel | Intake Valve Material: Proprietary Alloy | Exhaust Valve Material: Proprietary Alloy | Hardened Valve Seats: Proprietary Alloy | Stainless Steel Flexible Exhaust Connection
Warranty
Warranty
2 Year Limited Warranty (Standby and Demand Response Rated Units)