Current Generac Mobile Stationary Generators

2025 Generac Mobile Stationary Generators MD1500

2025 Generac Mobile Stationary Generators MD1500

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  • Model Stationary Generators
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2025 Generac Mobile Stationary Generators MD1500

2025 Generac Mobile Stationary Generators MD1500

  • Year 2025
  • Manufacturer Generac Mobile
  • Model Name Stationary Generators
  • Trim Name MD1500
  • Generic Type (Primary) General
  • Engine Manufacturer Perkins
  • Emissions EPA Emissions Compliance: Tier 2 | EPA Emissions Reference: Contact Factory
  • Cylinder Liners 12
  • Engine Type V Arrangement
  • Displacement 2,797 in3 (45.84 L)
  • Bore 6.3 in (160 mm)
  • Stroke 7.48 in (190 mm)
  • Compression Ratio 13.8:1
  • Intake Design Air Method: Turbocharged/Intercooled
  • Governor Electronic
  • Cooling Type: Pressurized Closed | Closed Coolant Recovery System | UV/Ozone Resistant Hoses | Factory-Installed Radiator | 50/50 Ethylene Glycol Antifreeze | Radiator Drain Extension | Coolant Catch Can | Finger Guard
  • Engine Power Horsepower at Rated kW: 2,205.8 hp | Three-Phase 277/480 VAC @0.8pf: 1500 kW/1,875 kVA / 2,255.3 Amps | Three-Phase 346/600 VAC @0.8pf: 1500 kW/1,875 kVA / 1,804.2 Amps
  • Rated Engine Speed 1,800 RPM

2025 Generac Mobile Stationary Generators MD1500

Built to Withstand. Designed to Simplify.

The Generac D46L diesel generator delivers dependable backup power for facilities that can’t compromise on uptime. Engineered around the modern Perkins D46L EPEAK 12-cylinder engine and paired with the Deep Sea G8601 controller, this platform simplifies installation, reduces complexity, and meets the newest UL2200 3rd Edition safety standards. With shared enclosure components, complete exhaust system, and flexible runtime options, the D46L is the smarter, streamlined solution for 1250–1500 kW applications.

Features may include:

Modern Engine Platform
  • Perkins D46L EPEAK 12-cylinder diesel engine provides strong transient response, improved serviceability, and global parts availability. Turbocharged / aftercooled design ensures stable power output under heavy loads.
Deep Sea G8601 Controller
  • Advanced control platform with PLC functionality, Modbus® RTU/TCP, SNMP, integrated data logging, and on-screen system mimic (SLDs).
Exhaust System
  • Configurable exhaust collector with Hospital and Critical Grade options, providing flexibility on installtions and soundwhile creating a cleaner, more compact installation footprint.
Modular Power System (MPS) Paralleling
  • Generac’s MPS architecture allows multiple units to operate in parallel for up to 99.999 % reliability, easy scalability, and simplified serviceability.
Breaker Configuration
  • Flexible breaker configurations (left/right positioning, full-rated amperage) support a wide range of site conditions.
Performance & Product Snapshot:
  • Cooling System: Pressurized closed-loop with 50/50 ethylene glycol; high-ambient engineered
  • Alternator System: Robust built utilizing permanent magnet excitation, low reactance, and both dedicated and re-strapable applications support a versitile offering
  • Power Nodes: 1250 kW & 1500 kW
  • Ideal For: Data centers, industrial campuses, large commercial buildings, healthcare, utilities, and infrastructure operations.
  • Applications: Standby and mission-critical backup power where simplified installation, platform standardization, and long-term reliability matter.
  • Footprint: Approx. 219 in L × 95 in W × 99 in H (open set, tank optional)
  • Operating Temperature: Designed for high ambient conditions to operate in the most extreme enviornments
  • Certifications: UL2200 (3rd Edition), EPA Certified Stationary Emergency, NFPA 110

Engine

Engine Manufacturer Perkins
Emissions EPA Emissions Compliance: Tier 2 | EPA Emissions Reference: Contact Factory
Cylinder Liners 12
Engine Type V Arrangement
Displacement 2,797 in3 (45.84 L)
Bore 6.3 in (160 mm)
Stroke 7.48 in (190 mm)
Compression Ratio 13.8:1
Intake Design Air Method: Turbocharged/Intercooled
Governor Electronic
Cooling Type: Pressurized Closed | Closed Coolant Recovery System | UV/Ozone Resistant Hoses | Factory-Installed Radiator | 50/50 Ethylene Glycol Antifreeze | Radiator Drain Extension | Coolant Catch Can | Finger Guard
Engine Power Horsepower at Rated kW: 2,205.8 hp | Three-Phase 277/480 VAC @0.8pf: 1500 kW/1,875 kVA / 2,255.3 Amps | Three-Phase 346/600 VAC @0.8pf: 1500 kW/1,875 kVA / 1,804.2 Amps
Rated Engine Speed 1,800 RPM

Fuel System

Fuel Type Ultra Low Sulfur Diesel #2 | Specifications: ASTM
Fuel System Filtering (Microns): 4
Fuel Injection Type: Electronic | Flexible Fuel Lines | Primary and Secondary Fuel Filter
Fuel Usage, 100% Load 25%: 31.3 gph (118.5 Lph) | 50%: 57.2 gph (216.6 Lph) | 75% 83.6 gph (316.4 Lph) | 100%: 107.3 gph (406.4 Lph)

Battery

Battery Size: See Battery Index 0161970SBY | Voltage: 12 VDC
Battery Charger Input Alternator: Standard

Electric

Electrical System Voltage: 24 VDC | Ground Polarity: Negative
Alternator Standard Model: K1500064N2M4 | 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: Sealed Ball | Coupling. Direct Drive | Voltage Regulator Type: Digital | Regulation Accuracy (Steady State): ±0.25% | Main Line Circuit Breaker | Class H Insulation Materia | 2/3 Pitch | Skewed Stator | Permanent Magnet Excitation | Sealed Bearing | Full Load Capacity Alternator | Drip Cover

Operational

Operating Conditions Frequency Regulation (Steady State): ±0.25%
Operating Speed Piston: 2,244 ft/min (683.9 m/min)
Operating Temperature, Maximum Maximum Operating Ambient Temperature: 113 °f (45 °C) | Maximum Operating Ambient Temperature (Before Derate): Contact Factory | Exhaust Temperature (Rated Output - Post Turbo): 899.6 °f (482 °C)
Run Time Per Tankful No Tank

Hydraulics

Pump Type Oil: Gear Driven
Oil Filter Type: Full Flow Spin-On Cartridge
Injection Pump Type Fuel: MEUI
Hydraulic Flow Total Fuel Pump Flow (Combustion + Return): 675.6 gph (2,557.6 Lph) | Coolant Flow: 317 gpm (1200 Lpm) | Exhaust Flow (Rated Output): 11,095.8 cfm (314.2 m3/min)
Airflow Air Flow (Fan Air Flow Across Radiator): 64000 cfm (1812.3 m3/min) | Flow at Rated Power: 4,584 cdfm (129.8 m3/min)
Maximum Pressure Maximum Additional Radiator Backpressure: 0.5 in H2O (0.124 kPa) | BMEP: 347 psi (2,392 kPa) | Maximum Allowable Back Pressure (Post Turbo): 2.9 inHg (10 kPa)

Dimensions

Dimensions Fan Diameter: 65 in (1651 mm) | Fuel Supply Line ID Minimum: 0.75 in (19 mm) | Fuel Return Line ID Minimum: 0.75 in (19 mm) | Fuel Pump Lift: 8.2 ft/ 2.5 m)
Length Open Set: 218.9 in (5560 mm)
Width Open Set: 94.4 in (2398 mm)
Height Open Set: 98.6 in (2506 mm)

Capacities

Oil capacity Crankcase: 166.4 qt (157.5 L)
Cooling System Coolant Capacity: 59 gal (223 L)

Weights

Weight Open Set: 24,416.1 - 25,787.5 lbs (11,075- 11,697 kg)

Features

Features Cylinder Head: 4–Valve | Fan Type: Pusher | Oil Drain Extension | Air Filter Restriction Indicator | Air Cleaner | Level 1 Fan and Belt Guards | Factory Filled Oil and Coolant | Engine Coolant Heater | Radiator Stone Guard | Oil Cooler | Battery Charging Alternator | Battery Cables | Battery Tray | Solenoid Activated Starter Motor | 20A UL Listed Battery Charger | Separation of Circuits - High/Low Voltage | Separation of Circuits - Multiple Breakers | Standard Factory Testing
Construction Material Stainless Steel Flexible Exhaust Connection | Rubber-Booted Engine Electrical Connections | Rubber Encapsulated Isolator

Warranty

Warranty 2 Year Limited Warranty (Standby Rated Units)

Product Photography