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Caterpillar is leading the power generation marketplace with Power Solutions engineered to deliver unmatched flexibility, expandability, reliability, and cost-effectiveness.

Generator Set Specifications

Minimum Rating 591 ekW 591 ekW Less
Maximum Rating 800 ekW 800 ekW Less
Emissions/Fuel Strategy Low Fuel Consumption Low Fuel Consumption Less
Voltage 220 to 480 Volts 220 to 480 Volts Less
Frequency 60 Hz 60 Hz Less
Speed 1800 rpm 1800 rpm Less
Duty Cycle Standby, Prime Standby, Prime Less

Engine Specifications

Engine Model 3412C TA, V-12, 4-Stroke Water-Cooled Diesel 3412C TA, V-12, 4-Stroke Water-Cooled Diesel Less
Bore 5.4 in 137.2 mm Less
Stroke 6.0 in 152.4 mm Less
Displacement 1648.86 in³ 27.02 l Less
Compression Ratio 13:00:01 13:00:01 Less
Aspiration TA TA Less
Fuel System Pump and Lines Pump and Lines Less
Governor Type ADEM™ A5 ADEM™ A5 Less

Generator Set Dimensions

Length - Maximum 162.4 in 4125.0 mm Less
Width - Maximum 78.3 in 1989.0 mm Less
Height - Maximum 75.0 in 1906.0 mm Less
Dry Weight - Genset (minimum) 5761.0 lb 12700.0 kg Less
Dry Weight - Genset (maximum) 13275.0 lb 6021.0 kg Less

Cat Generator Set Package

  • 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

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

SR500 Alternator

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

EMCP 4 Control Panel

  • User-friendly interface and navigation
  • Scalable system to meet a wide range of installation requirement
  • Expansion modules and site-specific programming for specific customer requirements

Cooling System

  • Designed to operate in standard ambient temperatures up to 50°C (122°F)
  • Contact your Cat Dealer for specific ambient and altitude capabilities


  • EU Declaration of Conformity
  • EU Declaration of Incorporation
  • Eurasian Conformity (EAC)

One Safe Source

  • Components used in the generator set are selected at the design stage to provide optimum package 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

World Wide Product Support

  • 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

3412C (60 Hz) Standard Equipment

Air Inlet System
  • Air cleaner, single element canister type
  • Single element canister type

Control Panel
  • High coolant temperature
  • Customer data link (Modbus RTU)
  • Low coolant temperature
  • Low coolant level
  • Communications:
  • Run / Auto / stop Control
  • Engine Cycle Crank
  • Generator temperature monitoring module
  • Power Factor (per phase & average)
  • Remote CAN annunciator
  • Serial annunciator module data link
  • DC volts
  • Frequency (Hz)
  • Operating hours.
  • Emergency stop pushbutton
  • Digital I/O module
  • Local annunciator
  • Low Oil pressure
  • Oil pressure (psi, kPa or bar).
  • Emergency stop
  • Warning shutdowns:
  • Volts (L-L & L-N)
  • Remote Serial annunciator
  • Speed Adjust
  • Amps (per phase & average)
  • Voltage Adjust
  • EMCP 4.2B
  • Overspeed
  • coolant temperature
  • Digital Indicator for:
  • RPM
  • Accessory module data link
  • Failure to start (overcrank)
  • Controls:
  • Compatible with the following optional modules:

Cooling System
  • Caterpillar extended life coolant
  • Radiator with guard (sized for 50 degrees C)
  • Fan and belt guards
  • Coolant drain line with valve

Exhaust System
  • Stainless steel exhaust flex with ANSI style outlet flange

Fuel System
  • Primary and secondary fuel filters
  • Fuel priming pump
  • Water separator

Generator and Attachments
  • 3 Phase sensing
  • SR4B self excited
  • Class F temperature rise
  • VR6B Voltage Regulator
  • Busbar termination
  • 12 Lead
  • Class H insulation
  • 2:1 Volts / Hz
  • Reactive droop

Governing System
  • Cat electronic governor

Lube System
  • Oil drain line with valve
  • Lubricating oil
  • Oil filter

Mounting System
  • Base, formed steel with linear vibration isolators between base and engine-generator

Starting / Charging System
  • Battery with rack, cables
  • 45 Amp charging alternator
  • Fuel shutoff solenoid
  • 24 Volt starting motor

  • Paint - Caterpillar Yellow except rails and radiators gloss black

3412C (60 Hz) Optional Equipment

Air Inlet System
  • Air cleaner - dual element
  • Air cleaner - heavy element
  • Air cleaner - open element

  • EU Certification

Circuit Breakers
  • 4 Pole circuit breakerswith shunt trip
  • 3 Pole Circuit Breakers with shunt trip
  • Power terminal strips

Control Panel
  • EMCP 4.3, EMCP 4.4
  • Temperature monitoring package
  • Vandal proof panel door
  • Generator running VFC
  • Earth leakage ground fault relay
  • Common alarm / shutdown relay

Cooling System
  • Jacket water heater
  • Radiator duct flange
  • Radiator removal

Exhaust System
  • Muffler 10 dBA attenuation
  • Manifold and turbocharger guard
  • Muffler 35 dBA attenuation
  • Elbow mounting kit
  • Through wall installation kit

Fuel System
  • Manual Fuel transfer pump
  • Automatic fuel transfer system

Generator and Attachments
  • Internal excitation (IE)
  • Anti-condensation heater
  • Permanent magnet excitation (PMG)
  • Oversize and premium generators

Governing System
  • Electronic load share

Lube System
  • Manual sump pump

Mounting System
  • Fuel tank base (1200 Ltr)

Special Tests / Reports
  • PGS test report @ 1.0 power factor
  • PGS test report @ 0.8 power factor
  • Factory witness test

Starting / Charging system
  • Oversize battery
  • Battery chargers
  • Heavy duty starting system
  • Battery disconnect switch
  • Battery removal

  • DC Lighting package
  • Weather protective enclosure (WP)
  • Sound attenuated enclosure (SA)

Application Center

Explore valuable resources for generator sizing, specification, and training materials. SpecSizer evaluates load types, collects data, and organizes it to help you select the generator set that's best for you. Find product comparisons, technical data, product sizing, and more using our technical information portal (TIP) specifically created for consultants, architects, engineers, and owners.

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Caterpillar offers a comprehensive variety of electric power systems, customized to fit your needs. Our specialized systems deliver high power and performance in industries across the globe. With Caterpillar, you get outstanding manufacturing quality, expert support, and the essential tools and applications to complete any project.

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EMCP 4 Generator Set Controls

Cat generator sets provide a complete factory-built solution with fully featured standard and advanced controls. Optional accessories enhance the capabilities of the genset package-mounted control system.

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