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

Standby Rating
1250/1100 ekW
Prime Power Rating
1135/1000 ekW
Emissions/Fuel Strategy
Low Fuel Consumption
380 to 13800 Volts
60 Hz
1800 rpm
Duty Cycle
Standby, Mission Critical, Prime, Continuous
Maximum Rating
1250 ekW
Minimum Rating
890 ekW

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

Worldwide 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 isolators
    • IBC isolators
    • Rubber anti-vibration mounts
    • EU Declaration of Conformity
    • Eurasian Conformity (EAC) mark
    • European union certification
    • European Directive genset, DoI (Declaration of Incorporation)
    • 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 kit
    • 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 - Dual 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