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

Diesel Generator Sets D250 GC

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Key Specs

Maximum Rating
250 ekW
250 ekW
Minimum Rating
250 ekW
250 ekW
Emissions/Fuel Strategy
EPA Stationary Emergency
EPA Stationary Emergency


250 ekW Diesel Generator Set

Producing reliable power of 250 ekW at 60 Hz, our D250 GC diesel generator set are designed to ISO 8528-5 transient response requirements. The D250 GC generator sets are engineered to EPA Stationary Emergency (Tier 3) emissions standards.


Saves up to 28% Installed Space

Requires less space for installation; leaves more room for your on-going operations

Weighs up to 23% Less

Easier handling; less structural reinforcement required to support genset weight

Standard 105°C Alternator Temperature Rise

Meets most all specifications; ensures long alternator life

Product Specifications for D250 GC

Maximum Rating 250 ekW 250 ekW
Minimum Rating 250 ekW 250 ekW
Emissions/Fuel Strategy EPA Stationary Emergency EPA Stationary Emergency
Voltage 208 to 600 Volts 208 to 600 Volts
Frequency 60 Hz 60 Hz
Speed 1800 rpm 1800 rpm
Duty Cycle Standby Standby
Engine Model Cat® C9 In-line 6, 4-cycle Diesel Cat® C9 In-line 6, 4-cycle Diesel
Bore 4.4 in 112 mm
Stroke 5.9 in 149 mm
Displacement 538 in³ 8.8 l
Compression Ratio 16.3:1 16.3:1
Aspiration Turbocharged Air-to-Air Aftercooled Turbocharged Air-to-Air Aftercooled
Fuel System HEUI HEUI
Governor Type Adem™A4 Adem™A4
Length - Maximum 155.5 in 3950 mm
Width - Minimum 56.3 in 1430 mm
Width - Maximum 56.7 in 1440 mm
Height - Minimum 67.2 in 1706 mm
Height - Maximum 86.7 in 2202 mm
Dry Weight - Genset (minimum) 5324.2 lb 2415 kg
Dry Weight - Genset (maximum) 6735.1 lb 3055 kg

D250 GC Standard Equipment

Air Inlet System

  • Air cleaner - Non canister, disposable
  • Aftercooler core
  • Turbocharger

Control Panel

  • GCCP 1.2

Cooling System

  • 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 System

  • Exhaust manifold - dry

Fuel System

  • 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

Generator Set

  • 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

Generators and Generator Attachments

  • 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

Governing System

  • Cat electronic governor (ADEM A4)

Lube System

  • 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

Mounting System

  • 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

Starting/Charging System

  • 24-volt electric starting motor
  • 24V, 45 Amp Charging alternator


  • Vibration damper
  • Lifting eyes
  • Parts book

D250 GC Optional Equipment

Air Inlet System

  • Air cleaner (Non canister disposable)

Bases, Mounting & Fuel Tanks

  • Integral tank base, 24 hours, UL142
  • Audio & visual fuel alarm (@90% fuel level)
  • Wide Base - Skid
  • Fuel tank pill pipe & lockable cap

Circuit breaker

  • 400A LS/I
  • 600A LS/I
  • 1200A LSI
  • 600A LSI
  • 1200A LS/I
  • Auxiliary contacts
  • 400A LSI
  • 800A LSI
  • 800A LS/I

Control System

  • 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)

Exhaust System

  • 6" Muffler - 25 dBA attenuation
  • Flexible exhaust connection
  • Manifold and turbocharger guards


  • Permanent magnet excitation (PMG) generator
  • Space heater

Starting System

  • 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

See how D250 GC compares against frequently compared products.

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