C280-12 Generator Set (Medium Speed)

C280-12 (60 HZ) 3300-4000 kW Diesel Generator models consume less fuel, translating to responsible power and operating cost savings for customers.



Producing reliable power from 3300 to 4000 ekW at 60 Hz, our C280-12 diesel generator sets are made to meet your mission critical, continuous, standby and prime applications. We've designed each to ISO 8528-5 transient response requirements and to accept 100% rated load in one step. The generator set is certified for low fuel consumption.Caterpillar is leading the power generation marketplace with Power Solutions engineered to deliver unmatched flexibility, expandability, reliability, and cost-effectiveness.Electric Power

Cat Diesel Engine

  • 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


  • Matched to the performance and output characteristics of Cat engines
  • Industry leading mechanical and electrical design
  • Industry leading motor starting capabilities
  • High Efficiency

World Wide Product Support

  • Cat dealers provide extensive post-sale support including maintenance and repair agreements.
  • Cat dealers have over 1,800 dealer branch stores operating in 200 countries. The Caterpillar S•O•S℠ program cost effectively detects internal engine component condition, even the presence of unwanted fluids and combustion by-products

Full Range of Attachments

  • Wide range of bolt-on system expansion attachments, factory designed and tested Flexible packaging options for easy and cost effective installation

  • Standard Equipment
  • Optional Equipment
  • Specs
  • Docs

Standard Equipment

  • Air Inlet System
    • Air cleaner
    • Air inlet shutoff
    • Breather, crankcase, top-mounted
    • Turbocharger, watercooled, engine oil lubricated
    • Aftercooler, fresh water, corrosion resistant coated (air side)
  • Cooling System
    • Front mounted turbos
    • Jacket water thermostats
    • Water temperature regulator
    • Engine coolant water drains
    • Three-bundle oil cooler
  • Exhaust System
    • 457 mm (18 in) Cat bolt pattern
    • Dry, gas tight, exhaust manifold
    • Includes adapter, flexible exhaust fitting
  • Fuel System
    • Simplex or duplex
  • Generator System
    • Custom generator per generator data sheet completed by Dealer
  • Governor System
    • UG Actuator
  • Lube System
    • Oil filler and dipstick
    • Centrifugal oil filters with single shutoff
    • Crankcase explosion relief valves
    • Oil pressure regulating valve
    • Wet oil sump. Includes engine-driven main lubrication and oil pumps, oil lines and oil pan
    • Service side engine mounted on cylinder block inspection covers
  • Mounting System
    • Engine and generator mounting
    • Damper, torsional vibration
  • Starting / Charging System
    • Vane type air starter
    • Two motors, engine mounted at rear, on left side
    • Line group for single point custom connection
    • Air silencer
  • General:
    • Gear driven pumps: Fuel/oil/jacket water/aftercooler/Oil cooler water
    • Paint, Caterpillar yellow

Optional Equipment

  • Air Inlet System
    • Boost control valve
    • Soot filter
    • Heavy duty air cleaner
    • Air cleaner louver assembly
    • Vertical support bracket
    • Air inlet adapter
  • Cooling System
    • Expansion tank
    • Heating aids
    • Cooling system aids
    • Heat exchanger for single circuit
    • Auxiliary water pump
  • Exhaust System
    • Weld flange and related hardware
    • Flexible exhaust fittings
  • Fuel System
    • Fuel priming pump
    • Fuel system connections
    • Duplex primary fuel strainer
  • Generator System
    • Anti-condensation space heaters
    • Winding temperature detectors
    • Busbar connections
    • Class F insulation
    • 3 Phase, six leads, WYE
  • Governor System
    • Battery backup/power supply
    • Electronic/actuators
    • 723 Plus
    • 230 UA
    • EGB actuator
    • Digital programmers
  • Lube System
    • Lube ANSI adapter (Emergency connection)
    • Oil pan drain valve
  • Mounting System
    • Spring type vibration isolators
    • Non-vertically restrained
    • Isolator
    • Vertically restrained
  • Starting / Charging System
    • Compressed air flex hose
    • Turbine type air starters
    • Redundant air starters
    • Pressure reducing valve
  • General:
    • Custom paint colors



Long Name:
C280-12 Generator Set (Medium Speed)

Generator Set Specifications

Maximum Rating
4000 ekW
Minimum Rating
3300 ekW
Emissions/Fuel Strategy
IMO - Tier 2
60 Hz
720 & 900 rpm
Duty Cycle
Prime, Continuous

Engine Specifications

Engine Model
3612 V-12,4-Stroke Water-Cooled Diesel
11 in / 280 mm
11.8 in / 300 mm
13524 in³ / 222 l
Compression Ratio
Fuel System
Direct unit injection
Governor Type
Generator Set Monitoring System (GMS)

Generator Set Dimensions

Length - Maximum
404 in / 10261.7 mm
Width - Maximum
99.62 in / 2530.3 mm
Height - Maximum
156.6 in / 3977.7 mm
Dry Weight - Genset (maximum)
112690 lb / 51230 kg