JD250-02 product details and specifications:

General 

• Model: JD250-02 

• Power Rating: 250 kWe 

• Application: Emergency Stationary Standby 

• Fuel: Diesel 

• UL 2200 Listed; CSA Approved 

• EPA: Tier 3 

• Paint Color: White 

• Standard Colors: White / Gray 

Engine 

• Manufacturer: John Deere 

• Model: 6090HF484 

• Type: 4-Cycle 

• Aspiration: Turbo Charged, CAC (Charge Air Cooled) 

• Cylinder Arrangement: 4 Cylinder Inline 

• Displacement: 549 cu. in. (9.00 L) 

• Bore x Stroke: 4.70 in. x 5.40 in. 

• Compression Ratio: 16.0:1 

• Rated RPM: 1800 

• Max HP Standby: 422 HP (315 kW) 

• Governor: Electronic Isochronous 

• Oil Pump & Filter included 

• Oil Drain Extension with Valve 

• Blower Fan & Fan Drive 

• Starter & Alternator 

• Flexible Fuel Connector 

Alternator / Generator 

• Model: Stamford S4L1S-D4 (3 Phase) / S4L1D-G41 (1 Phase) 

• Type: Brushless, Single Bearing 

• Winding: 12 Lead 

• Voltage Regulation: ±0.50% 

• Poles: 4 Pole, Rotating Field 

• Temperature Rise: 125°C Standby over 40°C Ambient 

• Load Pickup: 100% of Rated Load in One Step 

• Harmonic Content: 5% Maximum 

• Standards: NEMA MG 1, IEEE, ANSI 

Electrical Ratings 

• Option 1 — Single Phase: 120/240V, 1 Phase, 60 Hz, PF 1.0, 1042 Amps 

• Option 2 — Three Phase: 277/480V, 3 Phase, 60 Hz, PF 0.8, 376 Amps 

Voltage Regulator 

• Model: Stamford MX321 

• Type: Automatic Voltage Regulator (AVR) with PMG Excitation 

• Voltage Regulation: ±0.5% RMS 

• Soft Start Ramp Time: 0.4–4 seconds 

• AVR Response: 10 ms 

Control Panel 

• Model: Blue Star DCP7310 Microprocessor Based Gen-Set Controller 

• Mounted: Facing Left from Generator End (unless specified otherwise) 

• Display: 4-Line Back-Lit LCD 

• Protection: Low Oil Pressure, High Coolant Temp, Overspeed, Overcrank Shutdowns 

• Emergency Stop Pushbutton with Audible Alarm Buzzer and Silencing Switch 

• NFPA 110 Level 1 Compatible 

• CAN Bus (J1939) ECU Communications 

• RS485 Communicator Interface 

• IP65 Rated (with supplied gasket) 

• cULus Listed, CE Approved 

• 8 Programmable Contact Inputs; 10 Contact Outputs 

Enclosure 

• Level: Level 2 – Weather Proof with Foam 

• Material: Powder Coated 14 Gauge Steel 

• Wind Rating: 200 MPH (IBC 2021 / ASCE/SEI 7-16) 

• Roof: Pitched for structural integrity and improved watershed 

• Openings: Punched intake with baffle and punched exhaust openings 

• Doors: Keyed alike lockable with draw-down latches and stainless steel hinges 

• Sound Foam: 1.5" Thick Polydamp Type D Acoustical Foam (PAF) 

• Base: Formed steel with mounting and lifting holes 

• Vibration Mounts: Isolates unit from base rail 

Cooling System 

• Type: Unit Mounted Radiator 

• Ambient Capacity: 50°C (122°F) 

• Water Pump Flow Rate: 74.0 GPM 

• Heat Rejection to Coolant: 5,920 BTUM (104 kW) 

• System Coolant Capacity: 13.2 gal 

• Engine Jacket Water Capacity: 4.25 gal 

Fuel System 

• Fuel Tank: 72-Hour / 1,620 Gallon, UL 142 Listed, Sub-Base 

• Tank Construction: Double Wall with Secondary Containment 

• Includes: Supply & Return Connections, Fuel Level Gauge, Fuel Leak Switch, Fill & Vent Plumbing 

• Fuel Consumption @ 100%: 17.7 gal/hr 

• Fuel Consumption @ 75%: 15.4 gal/hr 

• Fuel Consumption @ 50%: 11.1 gal/hr 

• Oil Drain Extension plumbed to bulkhead fitting in base 

Additional Equipment 

• Main Line Breaker: 400 Amp, 3 Pole, 600 Volt, NEMA 1 Enclosure 

• Battery: 12 Volt System with Rack and Cables 

• Battery Charger: 12V, 6 Amp, Mounted and Wired to Terminal 

• Block Heater: 2500W, 240VAC, rated for -20°F with Isolation Valves 

• Air Cleaner: Dry Single Stage 

• Silencer: Critical Grade Compact (CPJ Series) Mounted to Engine 

• Total Oil System Capacity: 8.20 gal 

Certifications & Standards 

• UL 2200 Listed and cUL Listed 

• CSA Certified 

• EPA Tier 3 Certified 

• Seismic Certified to IBC 2021 

• NFPA 110 Level 1 and Level 2 Compliant 

• CSA C282 Compliant 

Testing & Warranty 

• Standard Commercial Factory Testing: alarm shutdowns, voltage settings, block loading 

• Warranty: 2 Year / 2,000 Hour Standby Limited 

product specifications:

product related documents:

2026 EPA Cert 450hab-tjdxl09-0114-009 JD250-02, JD275-02, JD300-02.pdf

JD250-02 Engine Data Sheet 12-5-23.pdf

JD250-02_Drawings.pdf

JD250-02_SpecSheet.pdf

JD250-02.pdf