Electric Power

  • Specs Summary
  • Minimum Rating
    230 kVA
  • Maximum Rating
    330 kVA
  • Prime
  • Standby

C9 Generator Set

Producing reliable power from 230 kVA to 330 kVA at 50 Hz, our C9 diesel generator sets are made to meet your standby and prime applications. Each is designed to meet ISO 8528-5 transient response requirements and accept 100 percent rated load in one step. All C9 generator sets are engineered to EPA Stationary Emergency (Tier 3) emissions standards — it's how we're helping protect and power the world you live in. Seismic certification is also available to maintain power during unexpected disturbances. Our integrated control system, including ATS and switchgear, ensures a consistent power supply and connection to your fleet through on-site and remote monitoring options. The EMCP 4 control panel, with a user-friendly interface, puts our management and diagnostic tools in one. We offer a wide range of accessories and bolt-on system expansion attachments so you can adapt your generator sets to your needs. Find flexible packaging options to work with your spatial requirements and environmental conditions. Even select from UL 2200 and CSA certified package options for added safety. Tailor your C9 generator sets to take on today's power needs — and tomorrow's.

Generator Set Specifications

  • Minimum Rating 230 kVA
  • Maximum Rating 330 kVA
  • Voltage 220-480 Volts
  • Frequency 50 Hz
  • Speed 1500 RPM

Generator Set Configurations

  • Emissions/Fuel Strategy EU Stage IIIA, Low Fuel Consumption, U.S. EPA Certified for Stationary Emergency Use only ( Tier 3 Nonroad Equivalent Emission Standards)

Engine Specifications

  • Engine Model C9 ATAAC, I-6, 4-Stroke Water-Cooled Diesel
  • Bore 4.41 (112 )
  • Displacement 537.01 (8.8 )
  • Stroke 5.87 (149 )
  • Compression Ratio 16.1:1
  • Aspiration Air to Air Aftercooled
  • Governor Type Adem™A4
  • Fuel System Hydraulic electronic unit injection

Generator Set Dimensions

Standard Equipment

Air Inlet System

  • Air cleaner, light duty with disposable paper filter

Control Panels

  • EMCP4.4 control panel

Cooling System

  • Radiator and cooling fan with guard
  • Coolant drain line with valve
  • Fan drive, battery charging alternator drive
  • Caterpillar extended life coolant

Exhaust System

  • Stainless steel exhaust flex, gaskets, rain cap and SAE exhaust
  • Flange for customer; shipped loose

Fuel System

  • Standard open set fuel tank / base supplied
  • Base, formed steel with single wall integral 8-hour fuel tank

Generators and Generator Attachments

  • 12 leads
  • IP23 protection
  • Voltage regulator (single phase sensing)
  • Power centre, IP22
  • Segregated low voltage (AC/DC) wiring panel
  • Mandatory option circuit breaker, IEC, 3 pole

Governing System

  • Cat electronic governor (ADEM A4)

Lube System

  • Oil cooler
  • Lubricating oil
  • Oil drain valves

Mounting System

  • Captive linear vibration isolators between base and engine-generator
  • Includes lifting provisions and termination points for coolant and lube oil drain lines

Starting / Charging System

  • 24V battery with rack and cables


  • Engine and alternator re-paint, Caterpillar Yellow

Optional Equipment


  • European Certifications
  • Global Certifications

Air inlet system

  • Single element air cleaner

Control Panels

  • Volt free contact
  • Local alarm horn
  • Oil temperature displays
  • Earth fault relay
  • Earth leakage ground fault relay
  • Overload alarm switch
  • Low fuel level alarm
  • Low fuel level shutdown
  • High fuel level alarm
  • Fuel level sensor

Control System

  • Stone guard / radiator trans flance
  • Low coolant temperature alarm


  • High ambient sound attenuated enclosure
  • Sound attenuated enclosure

Exhaust System

  • Muffler - 10 dBA attenuation
  • Muffler - 25 dBA attenuation


  • Integral duel wall fuel tank base


  • Permanent magnet generator
  • LC frame generator

Mounting System

  • Narrow skid base

Special Packing / Inspectons for Shipment

  • Special tests / reports
  • Special packing for shipping
  • Special inspections

Starting / Charging

  • Battery charger 5 amp single
  • Battery removal
  • Battery disconnet switch
  • Jacket water heater