3512B Diesel Generator Set

3512B Diesel Generator Set

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The 3512B generator set has been developed for a wide range of applications, from emergency standby installations such as healthcare and datacenters to continuously powering remote installations. The packages can ...
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Generator Set Specifications

Minimum Rating
1230 eKW
Maximum Rating
1500 eKW
Emissions/Fuel Strategy
Low Fuel, Low Emissions
380 to 480 Volts
60 Hz
1800 rpm
Duty Cycle
Standby, Mission Critical, Prime, Continuous

Engine Specifications

Engine Model
3512B TA, V-12, 4-Stroke Water-Cooled Diesel
Compression Ratio
14.0:1 Std 15.5:1 HD
Fuel System
Electronic Unit Injection
Governor Type

Generator Set Dimensions

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


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:

    Air Inlet System
    • Air Cleaner: Includes installed single element Cat filter and service indicator
    • Duel element air filters
    • Single stage air cleaners
    Control Panels
    • Cat connect (must choose one)
    • RTD module - may select one
    • Modbus monitoring of packages
    • First local annunicator
    • EMCP 4.3, EMCP 4.4
    • CAN 2 network equipment
    • Remote custom annunciator
    • Locale discrete I / O package
    • Vandle proof panel door
    Cooling System
    • Optional radiator arrangements
    • Water level gauge
    • Coolant
    Control System
    • Generator yemperature monitoring
    Exhaust System
    • Exhaust Y adapters
    • Exhaust Elbows
    • Mufflers
    • Flexible fittings
    • Exhaust flange and expanders
    Generators And Attachments
    • Space heater control
    • Generator conversion
    • Space heater
    • Pyrometer and thermocouples
    Lube System
    • Oil level regulator
    • Prelube manual sump pump
    • Electric prelube sump pump
    • Lube oil
    Special Tests / Reports
    • PGS test report @ 0.8 power factor
    • Generator test report
    • Standard generator TVA report
    • PGS test report @ 0.8 power factor
    • Custom generator TVA report
    • Torsional vibration analysis
    • PGS test report @ 1.0 power factor
    • Standard engine test charge
    • Generator test report
    • Standard engine test charge
    • PGS test report @ 1.0 power factor
    • Generator fuel consumption test
    • Barring devices
    Crankcase System
    • Ventilation system
    • Protection systems
    Batteries And Battery Housing
    • 24 Volt battery set - Dry
    • Battery chargers - 10, 20 and 35 amp
    Power Connection System
    • EMCP voltage and current sensing groups
    • Breaker power connections
    • Center post busbar
    Circuit Breaker - Lv Packages
    • Right hand power connections
    • Electronically operated circuit breakers
    Mounting System
    • Low efficiency isolators
    • Spring type vibration isolator
    • Spring type vibration isolator
    • Low efficiency isolators puck
    Power Connections
    • Low voltage - Package mounted circuit breakers
    • Low voltage - 1400 and 1600 Frame generators
    • Electrically operated circuit breakers
    • Low voltage - Power connection options
    Starting / Charging System
    • Jacket water heater wiring groups
    • 35 Amp battery charger
    • 20 Amp battery charger
    • Jacket water heaters
    • 10 Amp battery charger
    • Electric starting motors
    • Starter covers
    • Batteries, racks and cables
    Starting / Charging Systems
    • Electric starting motors
    • Starter covers
    • Jacket water heater
    Extended Service Coverage
    • Gold - 36,48, 60, 120 month coverage
    • Cat branded commercial power system
    • Silver - 36 ,48, 60, 120 month coverage
    • Platinum - 24, 36, 48, 60, 120 month coverage