2025 Generac Mobile Stationary Generators MG625

Information

2025 Generac Mobile Stationary Generators MG625

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.
GENERAC SPARK-IGNITED ENGINE
  • With this nat gas generator, Generac builds its spark-ignited engines from the block up, utilizing advanced engineering expertise.
INDUSTRIAL ALTERNATOR
  • Generac industrial alternators are machine wound, machine inserted, and machine varnished for the ultimate in consistency.
POWER ZONE® PRO SYNC CONTROLLER
  • 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.
GENERATOR PARALLELING
  • 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.

Photos

Highlights

  • Muncy, Pennsylvania
  • 2025
  • Generac Mobile
  • Stationary Generators MG625
  • Natural Gas
  • Available
  • 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)
  • 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)

Specifications

  • 2025
  • Generac Mobile
  • Stationary Generators
  • MG625
  • General
  • Generac
  • 12
  • 4 cycle
  • 2,068 in3 (33.9 L)
  • 5.91 in (150 mm)
  • 6.30 in (160 mm)
  • 10.0:1
  • Air method: Turbocharged/Aftercooled
  • Electronic
  • Electronic
  • Type: Forced Circulation by Centrifugal Pump | Closed Coolant Recovery System | Factory-Installed Radiator | 50/50 Ethylene Glycol Antifreeze | Radiator Drain Extension
  • 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/781kVA / 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
  • 1,800 RPM
  • Carburetor: Down Draft | NPT Fuel Connection on Frame | Primary and Secondary Fuel Shutoff
  • Natural Gas
  • Natural Gas – scfh (m³/hr) at Standard Conditions 68 °F (20 °C), 14.7 psi (101 kPa) 25%: 2,725 (77.2) | Natural Gas – scfh (m³/hr) at Standard Conditions 68 °F (20 °C), 14.7 psi (101 kPa) 50%: 3,923 (111.1) | Natural Gas – scfh (m³/hr) at Standard Conditions 68 °F (20 °C), 14.7 psi (101 kPa) 75%: 5,94 (149.9) | Natural Gas – scfh (m³/hr) at Standard Conditions 68 °F (20 °C), 14.7 psi (101 kPa) 100%: 6,847 (193.9)
  • Size: See battery index 0161970SBY | Voltage: (4) – 12 VDC
  • Alternator: Standard
  • System Voltage: 24 VDC | Ground Polarity: Negative
  • Standard Model: K0732124Y22 | Poles: 4 | Field type: Revolving | 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) | Motorized Main Line Circuit Breaker
  • Frequency Regulation (Steady State): ±0.25%
  • Fan: 1,080 RPM | Piston: 1,890 ft/min (576 m/min)
  • Maximum Operating Ambient Temperature: 122 °F (50 °C) | Maximum Operating Ambient Temperature (Before Derate): See Bulletin No. 0199270SSD | Exhaust Temp (Rated Output - Post Catalyst): 1,166 °f (630 °C)
  • Oil: Gear Driven
  • Type: Full Flow Spin-On Cartridge
  • Coolant Flow: 291 gpm (1,101 Lpm)
  • Air flow (Fan Air Flow Across Radiator) — Open Set: 34,000 cfm (962.8 m3/min) | Flow at Rated Power 1,394 m3/min (39.5 cfm) | Exhaust Flow (Rated output): 4,067 cfm (115 m3/min)
  • Operating Fuel Pressure: 114–20 in H2O (3.5–5.0 kPa) | Maximum Radiator Backpressure: 0.5 in H2O (0.12 kPa) | BMEP: 226 psi (1,561 kPa) | Maximum Allowable back pressure (Post Silencer): 0.75 in H2O (2.54 kPa)
  • Fan Diameter: 64 in (1,626 mm)
  • 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)
  • 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)
  • 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)
  • Engine with Filter: 126.8 qt (120 L)
  • Coolant Capacity: 55 gal (208 L)
  • 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)
  • 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) | Factory Filled Oil and Coolant | Radiator Duct Adapter (Open Set Only) | Critical Silencer/Catalyst | Coolant Heater Ball Valves | 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 | Standard Factory Testing | Ready to Accept Full Load in <10 Seconds
  • 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
  • 2 Year Limited Warranty (Standby and Demand Response Rated Units)