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Producing reliable power from 1230 ekW to 1500 ekW at 60Hz, our 3512B diesel generator sets are made to meet your mission critical, continuous, standby and prime applications — and match your power standards. Each meet ISO 8528-5 transient response requirements and accept 100 percent rated load in one step. Our 3512B generator sets are designed for either low fuel consumption or low emissions. Our integrated control system, including Cat® UPS, ATS and switchgear keeps power supply consistent and keeps you connected to your fleet with on-site and remote monitoring options. Get management and diagnostics tools in one, with our EMCP 4 control panel options, all designed with a user-friendly interface. You have specific power needs and we have a broad range of accessories and bolt-on system expansion attachments to select from. Flexible packaging options work with your spatial restrictions and climate.

Generator Set Specifications

Minimum Rating 1230 ekW (1320kVA) 1230 ekW (1320kVA) Less
Maximum Rating 1500 ekW (1875 kVA) 1500 ekW (1875 kVA) Less
Voltage 220 to 13800 Volts 220 to 13800 Volts Less
Frequency 50 or 60 Hz 50 or 60 Hz Less
Speed 1500 or 1800 RPM 1500 or 1800 RPM Less

Generator Set Configurations

Emissions/Fuel Strategy Low Fuel Consumption, Low Emissions Low Fuel Consumption, Low Emissions Less

Engine Specifications

Engine Model 3512B TA, V-12, 4-Stroke Water-Cooled Diesel 3512B TA, V-12, 4-Stroke Water-Cooled Diesel Less
Bore 6.69 in 170.0 mm Less
Displacement (Std) 3161.03 in3 51.8 L Less
Displacement (HD) 3573.55 in3 58.56 L Less
Stroke (Std) 7.48 in 190.0 mm Less
Stroke (HD) 8.46 in 215.0 mm Less
Compression Ratio 14.0:1 Std 15.5:1 HD 14.0:1 Std 15.5:1 HD Less
Aspiration TA TA Less
Governor Type Adem™3 Adem™3 Less
Fuel System Electronic Unit Injection Electronic Unit Injection Less

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
  • Generator

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

    The EMCP controller features the reliability and durability you have come to expect from your Cat equipment. EMCP4 is a scalable control platform designed to ensure reliable generator set operation, providing extensive information about power output and engine operation. EMCP4 systems can be further customized to meet your needs through programming and expansion modules.

    Design Criteria

    The generator set accepts 100% rated load in one step per NFPA 110 and meets ISO 8528-5 transient response.

    UL 2200 / CSA - Optional

  • UL 2200 listed packages
  • CSA Certified
  • Certain restrictions may apply.
  • Consult with your Cat® Dealer.
  • Single-Source Supplier

    Fully prototype tested with certified torsional vibration analysis available

    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 Cat® S•O•SSM program cost effectively detects internal engine component condition, even the presence of unwanted fluids and combustion by-products.

    3512B Standard Equipment

    Air Inlet
    • Air Cleaner

    • Package mounted radiator (except C175)

    • Exhaust flange outlet

    • Primary fuel filter with integral water separator
    • Secondary fuel filter
    • Fuel priming pump

    • Matched to the performance and output characteristics of Cat engines
    • IP23 Protection

    Power Termination
    • Bus Bar

    Control Panel
    • EMCP 4 Genset Controller

    • Paint - Caterpillar Yellow except rails and radiators gloss black

    3512B Optional Equipment

    • Exhaust mufflers

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

    Power Termination
    • Circuit breakers, UL listed
    • Circuit breakers, IEC compliant

    Control Panels
    • EMCP 4.2
    • EMCP 4.3
    • EMCP 4.4
    • Generator temperature monitoring & protection
    • Load share module
    • Digital I/O module
    • Remote monitoring software

    • Rubber anti-vibration mounts
    • Spring-type vibration isolator
    • IBC isolators

    • Battery chargers
    • Oversize batteries
    • Jacket water heater
    • Heavy-duty starting system
    • Charging alternator
    • Air starting motor with control and silencer

    • The following options are based on regional and product configuration:
    • Seismic Certification per applicable building codes: IBC 2000, IBC 2003, IBC 2006, IBC 2009, CBC 2007
    • UL 2200 package
    • EU Certificate of Conformance (CE)
    • CSA Certification
    • EEC Declaration of Conformity
    • Enclosures: sound attenuated, weather protective
    • Automatic transfer switches (ATS)
    • Integral & sub-base fuel tanks
    • Integral & sub-base UL listed dual wall fuel tanks

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