3512 Generator Set

3512 Generator Set

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

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Generator Set Specifications

Maximum Rating
1250 ekW
Minimum Rating
890 ekW
Emissions/Fuel Strategy
Low Fuel Consumption
380 to 13800 Volts
60 Hz
1800 rpm
Duty Cycle
Standby, Mission Critical, Prime, Continuous

Engine Specifications

Engine Model
3512 TA, V-12, 4-Stroke Water-Cooled Diesel
Compression Ratio
Fuel System
Direct Unit Injection
Governor Type

Generator Set Dimensions

Length - Minimum
Length - Maximum
Width - Maximum
Height - Maximum
Dry Weight - Genset (minimum)
Dry Weight - Genset (maximum)

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

SR5 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


  • UL 2200 Listed
  • CSA
  • IBC seismic certification
  • OSHPD pre-approval

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

Standard Equipment:

Optional Equipment:

    • Exhaust mufflers
    Air Inlet System
    • Air inlet protection
    • Air cleaner - Dual element
    • Remote air inlet adapters
    • Oversize and premium generators
    • Internal excitation (IE)
    • Permanent magnet excitation (PMG)
    • Anti-condensation heater
    Circuit Breakers
    • Breaker harnesses
    • EMAX breaker connections
    • EMAX breakers
    • Enclosures - control packaging
    • Cable entry options
    • Low voltage, IEC standard hole
    • Optional busbar power connections
    • Busbar connections
    Power Termination
    • Circuit breakers, IEC compliant
    • Circuit breakers, UL listed
    Control Panels
    • Annunciator modules
    • Customer interface options
    • Auxiliary box
    • Mounting group - External box clips
    • Governors
    • Generator temperature monitoring
    Cooling System
    • Heat exchangers
    • 3512 MUI 1500 Radiators PGS
    • Water level switch gauges
    • Spring-type vibration isolator
    • IBC isolators
    • Rubber anti-vibration mounts
    • EU declaration of conformity
    • Eurasian conformity (EAC) mark
    • European union certification
    • European directive genset DOI
    • Jacket water heater
    • Battery chargers
    • Charging alternator
    • Heavy-duty starting system
    • Oversize batteries
    • Air starting motor with control and silencer
    Exhaust System
    • Flexible fittings
    • Mufflers
    • Through wall installation kit
    Fuel System
    • Primary fuel filter
    Generators And Attachments
    • Space heater kt
    • Generator conversions - IE and PM
    • Pyrometers
    Lube System
    • Oil level reg-1 shallow pan
    • Manual prelube sump pumps
    • Electric prelube pumps
    Mounting System
    • Vibration Isolator options
    Protection System
    • Explosion relief valves
    Special Tests / Reports
    • PGS test report @ 0.8 power factor
    • Neutral ground - LV
    • PGS test report @ 1.0 power factor
    • IBC seismic certification
    • Neutral grounding connection
    Starting / Charging System
    • Battery chargers (10 and 20 amp)
    • Battery sets - 24 Volt, dry
    • Electric starting motors - Duel 24 Volt
    • Charging alternators
    • Jacket water heaters
    • Starting aids
    • Integral & sub-base fuel tanks
    • Enclosures: sound attenuated, weather protective
    • Engine barring group - installed
    • Seismic Certification per applicable building codes: IBC 2000, IBC 2003, IBC 2006, IBC 2009, CBC 2007
    • CSA Certification
    • Integral & sub-base UL listed dual wall fuel tanks
    • The following options are based on regional and product configuration:
    • Automatic transfer switches (ATS)
    • UL 2200 package
    • EU Certificate of Conformance (CE)
    • EEC Declaration of Conformity