D250 GC C9 (60 Hz) | 250 kW Diesel Generator

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Maximum Rating250 ekW
Minimum Rating250 ekW
Emissions/Fuel StrategyEPA Stationary Emergency
Voltage208 to 600 Volts
Caterpillar is leading the power generation marketplace with Power Solutions engineered to deliver unmatched flexibility, expandability, reliability, and cost-effectiveness.


Maximum Rating250 ekW
Minimum Rating250 ekW
Emissions/Fuel StrategyEPA Stationary Emergency
Voltage208 to 600 Volts
Frequency60 Hz
Speed1800 rpm
Duty CycleStandby
Engine ModelCat® C9 In-line 6, 4-cycle Diesel
Bore4.4 in (112 mm)
Stroke5.9 in (149 mm)
Displacement538 in³ (8.8 l)
Compression Ratio16.3:1
AspirationTurbocharged Air-to-Air Aftercooled
Fuel SystemHEUI
Governor TypeAdem™A4
Length - Maximum155.5 in (3950 mm)
Width - Minimum56.3 in (1430 mm)
Width - Maximum56.7 in (1440 mm)
Height - Minimum67.2 in (1706 mm)
Height - Maximum86.7 in (2202 mm)
Dry Weight - Genset (minimum)5324.2 lb (2415 kg)
Dry Weight - Genset (maximum)6735.1 lb (3055 kg)

Benefits and Features

  • Cat generator set packages have been fully prototype tested
  • Accepts 100% block load in one step and meets NFPA 110 loading requirements
  • Conform to ISO 8528-5 steady state and transient response requirements

  • Reliable, rugged, durable design
  • Field-proven in thousands of applications worldwide
  • Four-stroke-cycle diesel engine combines consistent performance and excellent fuel economy with minimum weight

  • Superior motor starting capability minimizes need for oversizing alternator
  • Designed to match performance and output characteristics of Cat diesel engines
  • Robust Class H insulation

  • User-friendly interface and navigation
  • Expansion modules and site-specific programming for specific customer requirements

  • Designed to operate in standard ambient temperatures up to104°F (40°C)
  • Contact your Cat Dealer for specific ambient and altitude capabilities

  • UL 2200 Listed
  • ULC Certification Available

  • Components used in the generator set are selected based on seamless design integration to provide the optimum performance
  • The generator set is fully assembled at a Caterpillar facility following our quality guidelines
  • Each generator set package is tested before leaving the Caterpillar facility
  • Cat product support, including dealer service, parts and warranty covers the entire Cat power system

  • Cat dealers have over 1,800 dealer branch stores operating in 200 countries
  • Your local Cat dealer provides extensive post-sale support, including maintenance and repair agreements

Standard Equipment

  • Air cleaner - Non canister, disposable
  • Aftercooler core
  • Turbocharger
  • Jacket water pump, gear driven, centrifugal
  • Radiator sight gauge
  • Blower fan and fan drive with guards
  • Thermostats and housing
  • Coolant drain valve
  • Radiator, package mounted
  • Exhaust manifold - dry
  • Fuel priming pump
  • Engine fuel transfer pump
  • Primary fuel filter w/integral water separator and secondary filter, spin on
  • Integral tank base, 24 hours, UL142
  • Factory tested to design specifications at full load conditions
  • Complete system designed & built at ISO 9001:2000 certified facilities
  • All protective devices and control functions simulated and checked
  • Easy access to AVR and terminals
  • Insulation system, Class H
  • Brushless, self-excited 2/3 pitch (600V uses Internal excitation (IE))
  • Voltage regulator (single phase sensing)
  • Terminal box, IP22 RHS facing, bottom cable entry
  • 12 Leads
  • Standard winding protection for non-harsh environments with relative humidity ? 95%
  • IP23 Protection
  • Cat electronic governor (ADEM A4)
  • Oil filler and dipstick
  • Lubricating oil, CK-4 (10W-30)
  • Shallow oil pan
  • Oil filter, spin on
  • Fumes disposal to front of radiator
  • Oil cooler
  • Oil drain with valve
  • Includes lifting provisions and termination points for coolant and lube oil drain lines
  • Captive linear vibration isolators between base and engine-generator
  • Safety shutoff - Overspeed
  • Safety shutoff - High water temperature
  • Safety shutoff - Low oil pressure
  • 24-volt electric starting motor
  • 24V, 45 Amp Charging alternator
  • Vibration damper
  • Lifting eyes
  • Parts book

Optional Equipment

  • Air cleaner (Non canister disposable)
  • Integral tank base, 24 hours, UL142
  • Audio & visual fuel alarm (@90% fuel level)
  • Wide Base - Skid
  • Fuel tank pill pipe & lockable cap
  • 400A LS/I
  • 600A LS/I
  • 1200A LSI
  • 600A LSI
  • 1200A LS/I
  • Auxiliary contacts
  • 400A LSI
  • 800A LSI
  • 800A LS/I
  • Twist release, Red button emergency stop
  • Product link remote monitoring hardware
  • 16 -light NFPA 99/110 Annunciator
  • Volt free contacts
  • Ground fault relay
  • 20A GFCI (Ground Fault Circuit Interrupter)
  • Audible alarm Gp
  • 100A Load center
  • E-Stop
  • AC & DC Source lights
  • Sound attenuated Level 2 enclosure (White)
  • 6" Muffler - 25 dBA attenuation
  • Flexible exhaust connection
  • Manifold and turbocharger guards
  • Permanent magnet excitation (PMG) generator
  • Space heater
  • Standard battery set: 1000 CCA, 90 amp/hr.
  • Battery charger (UL Certified)
  • Jacket water heater
  • CSA Certification
  • Extended Service Coverage
  • Generator test report
  • UL2200 Certification