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Producing reliable power from 1230 ekW to 1500 ekW at 60 Hz, 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 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)
  • Maximum Rating 1500 ekW (1875 kVA) 1500 ekW (1875 kVA)
  • Voltage 220 to 13800 Volts 220 to 13800 Volts
  • Frequency 50 or 60 Hz 50 or 60 Hz
  • Speed 1500 or 1800 RPM 1500 or 1800 RPM

Generator Set Configurations

  • Emissions/Fuel Strategy Low Fuel Consumption, Low Emissions Low Fuel Consumption, Low Emissions

Engine Specifications

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

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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