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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Duty Cycle Standby, Mission Critical, Prime, Continuous
Emissions/Fuel Strategy Low Fuel Consumption
Frequency 60 Hz
Maximum Rating 1250 ekW
Minimum Rating 890 ekW
Prime Power Rating 1135/1000 ekW
Speed 1800 rpm
Standby Rating 1250/1100 ekW
Voltage 380 to 13800 Volts
Aspiration TA
Bore 6.69in
Compression Ratio 13.5:1
Displacement 3161.03in³
Engine Model 3512 TA, V-12, 4-Stroke Water-Cooled Diesel
Fuel System Direct Unit Injection
Governor Type Woodward
Stroke 7.48in
Dry Weight - Genset (maximum) 22650lb
Dry Weight - Genset (minimum) 22210lb
Height - Maximum 93.2in
Length - Maximum 218.8in
Length - Minimum 214.8in
Width - Maximum 77.8in

Standard Equipment:

  • Air Inlet System
    • Air cleaner; single element canister type with service indicator
  • Air Inlet
    • Air cleaner
  • Cooling
    • Radiator fan and fan drive
    • JWAC.
  • Exhaust
    • Exhaust flange outlet
    • Dry exhaust manifold
  • Fuel
    • Secondary fuel filters
    • Primary fuel filter with integral water separator
    • Fuel cooler; not included with packages without radiator
    • Secondary fuel filters
    • Fuel priming pump
  • Generator
    • IP23 Protection
    • Matched to the performance and output characteristics of Cat engines
  • Power Termination
    • Busbar
  • Control Panel
    • Accessory module data link
    • Features include:
    • Over/under voltage (27 / 59)
    • Coolant temperature
    • Generator phase sequence
    • Serial annunciator module data link
    • Low coolant temperature
    • Low oil pressure
    • DC volts
    • Over/under voltage (27/59)
    • Auto/start/stop control
    • Exciter diode monitor
    • Failure to start (overcrank)
    • 6 programmable digital inputs
    • Emergency stop
    • Generator mounted - rear facing
    • Programmable protective relaying functions:
    • Power factor (per phase & average)
    • Alarm acknowledge
    • DC volts
    • kVA (per phase, average & percent)
    • Overspeed
    • IVR includes:
    • RFI suppression
    • Emergency stop pushbutton
    • Package mounted radiator (except C175)
    • Overspeed
    • Emergency stop
    • kVAr (per phase, average & percent)
    • Environmental sealed front face
    • Customer data link (Modbus RTU)
    • Min / max exciter limiter
    • Speed adjust
    • Operating hours
    • True RMS AC metering, 3-phase, +/-2% accuracy
    • Reactive droop capability
    • Customizable screens
    • Volts (L-L & L-N)
    • PLC functionality
    • Digital indication for:
    • RPM
    • High coolant temperature
    • Digital indication for:
    • kW-hr (total)
    • Over/under frequency (81 o / u)
    • Low coolant temperature
    • 24 Volt DC operation
    • kW-hr (total)
    • Oil pressure (psi, kPa or bar)
    • Warning/shutdown with common LED indication of shutdowns for:
    • kVAr-hr (total)
    • EMCP 4.2B
    • 2 Programmable relay outputs (Form C)
    • kVAr-hr (total)
    • kW (per phase, average & percent)
    • kVAr (per phase, average & percent)
    • Engine cool-down timer
    • Over/under frequency (81 o/u)
    • Engine cool-down timer
    • True RMS AC metering, 3-phase, +/-2% accuracy
    • Low coolant level
    • Frequency (Hz)
    • Controls:
    • Generator phase sequence
    • High coolant temperature
    • Communications:
    • Reverse power (kW) (32)
    • Volts (L-L & L-N), frequency (Hz)
    • Alarm acknowledge
    • Environmental sealed front face
    • Controls:
    • Operating hours
    • Generator mounted - rear facing
    • Power factor (per phase & average)
    • kW (per phase, average & percent)
    • Programmable protective relaying functions:
    • Engine cycle crank
    • Reverse power (kW) (32)
    • 24 Volt DC operation
    • Lamp test
    • Text alarm/event descriptions
    • Failure to start (overcrank)
    • Generator set packages include Caterpillar's voltage regulator (IVR)
    • Warning/shutdown with common LED indication of shutdowns for:
    • Text alarm/event descriptions
    • 4 programmable relay outputs (Form A)
    • Lamp test
    • Load histogram feature
    • Coolant temperature
    • Auto/start/stop control
    • Overcurrent (50 / 51)
    • kVA (per phase, average & percent)
    • KVAR/PF modes
    • Engine cycle crank
    • 3 Phase voltage sensing
    • 2 Programmable digital outputs
    • Low oil pressure
    • Reverse reactive power (kVAr) (32RV)
    • EMCP 4 Genset controller
    • RPM
    • Oil pressure (psi, kPa or bar)
    • Amps (per phase & average)
    • Low coolant level
    • Amps (per phase & average)
    • EMCP4.2 controller includes:
  • Cooling System
    • Radiator fan and fan drive
    • Fan and belt guards
    • JWAC
    • Caterpillar extended life coolant
    • Coolant level sensors
    • Coolant drain line with valve
  • Exhaust System
    • Dry exhaust manifold.
    • Exhaust flange outlet
  • Fuel System
    • Fuel cooler; not included with packages without radiator
    • Flexible fuel lines - shipped loose
    • Secondary fuel filters
    • Fuel priming pump
  • Generators And Attachments
    • LV
    • Winding temperature detectors
    • 3 phase brushless, Salient pole
    • 1800 Frames are Form wound, Permanent magnet excitation (PMG), with winding temperature detectors
    • NEMA Class H insulation system, Class H temperature rise at 40C ambient (125C prime/150C standby)
    • Generator set packages include Caterpillar's digital voltage regulator (CDVR)
    • CDVR includes reactive droop capability, 3-phase voltage sensing, KVAR/PF modes, RFI suppression, min/max exciter. Limiter and exciter diode monitor
    • 6 Lead
    • Internal excitation (IE)
    • Busbar connections, top center mounted, top cable entry. 50 Hz models: IEC standard hole pattern
    • Random wound
  • Governing System
    • Woodward 2301A isochronous governor
  • Lube System
    • Integral lube Oil cooler
    • Oil filter, filler and dipstick
    • Oil drain lines and valve
    • Fumes disposal
    • Gear type lube oil pump.
    • Lubricating oil
  • Mounting System
    • Rubber anti-vibration mounts - shipped loose
    • Rails - engine/generator/radiator mounting
  • Starting / Charging System
    • Battery disconnect switch
    • Battery and battery rack w/cables
    • 24 Volt electric starting motor
  • Generator And Attachments
    • Random wound
    • LV
    • 6 Lead
    • 3 phase brushless, Salient pole
  • General
    • Right hand servicing
    • Caterpillar yellow with high gloss black rails & radiator
    • Flywheel and Flywheel housing-SAE No. 00
    • SAE standard rotation
    • Paint - Caterpillar yellow except rails and radiators gloss black

Optional Equipment:

  • Exhaust
    • Exhaust mufflers
  • Air Inlet System
    • Air inlet protection
    • Air cleaner - Dual element
    • Remote air inlet adapters
  • Generator
    • 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
  • Mounting
    • Spring type vibration isolators
    • IBC isolators
    • Rubber anti-vibration mounts
  • Certificates
    • EU Declaration of Conformity
    • Eurasian Conformity (EAC) mark
    • European union certification
    • European Directive genset, DoI (Declaration of Incorporation)
  • Starting/charging
    • 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
  • Instrumentation
    • 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
  • General
    • 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
Renee HerndonRenee Herndon
21:55 29 Feb 24
Dalton was very helpful, The road construction, however, was not! 😂I would rather have to sand paper an alligators @$$ in a phone booth that to get in that mess again.
Michael BirrenMichael Birren
14:58 24 Feb 24
I purchased a used C-15 from a customer of Greg Pool was a running take out. I picked up the engine from the Greg Pool Cat near Nags Head NC. They started they had done all service on this engine stated the hours and all items replaced during the life of engine under their care. I just recently put the engine in my boat after 2 years of building the vessel I find that everything they said about the engine was a LIE!!! Turbo was Bad, After cooler was not updated to the newer version for the C-15 it was missing a terminal Resistor that was clearly stolen off the engine which created a major issue with start up upon installation. Greg Pool Caterpillar stated the hours at 3300 we find out there were 5700 hours. I didn’t do a start up or test run which I regret because i was dealing with a Caterpillar dealer i thought i could trust them. Clearly not Buyers Be Ware if your dealing with Greg Pool Caterpillar in NC. I have 3 of the C-15 engines in my Work boats here in Tampa Fl and my Cat dealership here is Ring power who have done an amazing job to get me going with this Engine. I am very Disappointed in The Caterpillar company for allowing such A dealership to exist.
David LawrenceDavid Lawrence
13:04 22 Feb 24
Brandon PierceBrandon Pierce
22:00 18 Feb 24
Darin NoeDarin Noe
01:17 16 Feb 24
Jose SotoJose Soto
15:26 23 Sep 23
Hunter ElliottHunter Elliott
16:17 07 Sep 23
Rick Kelly-CrapseRick Kelly-Crapse
21:06 25 Aug 23
They had all my parts for my 3208 Cat.Friendly folks at parts counter.
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