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 be optimized for performance that matters to you with either low emissions or low fuel consumption versions available. Backed by the worldwide network of Cat dealers ready to support your operation with technical support, service, parts, and warranty, Cat generator sets will provide the reliability and durability you expect.

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Duty Cycle Standby, Mission Critical, Prime, Continuous
Emissions/Fuel Strategy Low Fuel , Low Emissions
Frequency 50 Hz
Maximum Rating 1875 kVA
Minimum Rating 1600 kVA
Prime Power Rating 1700/1600 kVA
Speed 1500 rpm
Standby Rating 1875/1750 kVA
Voltage 400 to 415 Volts
Aspiration TA
Bore 6.69in
Compression Ratio 15.5:1 HD
Displacement 3161.03in³
Displacement - HD 3576in³
Engine Model 3512B TA, V-12, 4-Stroke Water-Cooled Diesel
Fuel System Electronic Unit Injection
Governor Type ADEM™ A3
Stroke 7.48in
Stroke - HD 8.46in
Dry Weight - Genset (maximum) 26530lb
Dry Weight - Genset (minimum) 25620lb
Height - Maximum 94.9in
Height - Minimum 94.9in
Length - Maximum 217.1in
Length - Minimum 212.8in
Width - Maximum 90in
Width - Minimum 90in

Standard Equipment:

  • Control System
    • EMCP 4.2B
    • Emergency stop pushbutton
    • Failure to start (overcrank)
    • High coolant temperature
    • 4 Programmable digital outputs
    • Auto/start/stop control
    • 4 Programmable digital inputs
    • DC volts
    • Engine cycle crank
    • Low coolant level
    • Speed adjust
    • Low oil pressure
    • Communications
    • Frequency (Hz)
    • Warnings/shutdown indicators
    • Engine cool-down timer
    • Operating hours
    • Emergency stop
    • Oil pressure
    • Lamp test
    • True RMS AC metering, 3-phase, +/-2% accuracy
    • Digital indication for:
    • Overspeed
    • Alarm acknowledge
    • RPM
    • 24 Volt DC operation
    • Amps (per phase & average)
    • Coolant temperature
    • Volts (L-L & L-N)
  • Governing System
    • ADEM III
  • Cooling System
    • SCAC
    • Coolant drain line with valve
    • Radiator fan and fan drive
    • Fan and belt guards
    • Coolant level sensors
    • Caterpillar extended life coolant
  • Exhaust System
    • Dry exhaust manifold
    • Flanged faced outlet(s)
  • Fuel System
    • Fuel cooler; not included with packages without radiator
    • Flexible fuel lines
    • Secondary fuel filters.
    • Fuel priming pump
  • Generator System
    • RFI suppression
    • Min / max exciter
    • 3 phase brushless, Salient pole
    • Caterpillar's digital voltage regulator (CDVR)
    • Class H temperature rise at 40C ambient
    • Random wound
    • Winding temperature detectors
    • Internal excitation (IE)
    • 3 Phase voltage sensing
    • Busbar connections
    • 6 Leads
    • NEMA Class H insulation
  • Literature
    • Parts book
    • Operation & Maintenance Manual
  • Lube System
    • Lubricating oil
    • Gear type lube oil pump
    • Fumes disposal
    • Oil drain lines and valve
    • Oil filter, filler and dipstick
    • Integral lube Oil cooler
  • Mounting System
    • Rails - Engine/generator/radiator mounting
  • General
    • Flywheel and Flywheel housing-SAE
    • Caterpillar yellow with high gloss black rails & radiator
    • RH service
    • SAE standard rotation

Optional Equipment:

  • Air Inlet System
    • Dual element air cleaner
    • Single element filter
    • Heavy duty air cleaner
  • Exhaust
    • Exhaust mufflers
  • Generator
    • Internal excitation (IE)
    • Oversize and premium generators
    • Anti-condensation heater
    • Permanent magnet excitation (PMG)
  • Control System
    • EMCP voltage and current sensing groups
    • CAN2 network equipment
    • Annunciator modules (Local and remote)
    • Customer interface options
    • Load share module options (LV)
    • EMCP 4.3, EMCP 4.4
    • Annunciator network equipment
    • Neutral to ground connection
    • Generator temperature monitoring
    • Remote annunciator module (Low voltage)
    • Local annunciator modules (Low voltage)
    • Cat connect: Ethernet telematics / Satellite telematics / Cell telematics
    • Governors (MUI-Low voltage)
  • Power Termination
    • Circuit breakers, IEC compliant
    • Circuit breakers, UL listed
  • Cooling System
    • Installed radiators
    • Coolant
    • Water level switch gauges
    • Cooling system attachments
  • Mounting
    • IBC isolators
    • Rubber anti-vibration mounts
    • Spring type vibration isolators
  • Starting/charging
    • Jacket water heater
    • Oversize batteries
    • Battery chargers
    • Charging alternator
    • Heavy duty starting system
    • Air starting motor with control and silencer
  • Exhaust System
    • Flexible fittings
    • Mufflers
    • Y Adapters
    • Elbows
    • Flange and exhaust expanders
  • Factory Support
    • Factory commissioning
  • Fuel System
    • Secondary fuel filters
    • Primary fuel filter
  • Generators And Attachments
    • Internally excitation
    • Permanent magnet excitation (PMG)
    • RW
    • 6 Leads
    • Space heater kit
    • 1400 and 1600 Frame
    • Pitch 0.6667
    • Low voltage generators 380, 400, 415 Volts 3 Phase, 1500 rpm
    • Generator conversion kits - PM to IE / IE to PM
  • General
    • EU Certificate of Conformance (CE)
    • 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
  • Instrumentation
    • Pyrometer and thermocouples
  • Lube System
    • Lube oil in standard sump
    • Standard sump oil pan
    • Lube oil filters
    • Drain GP oil pan
    • Oil level regulator
    • Prelube pump groups
  • Crankcase System
    • Crankcase protection group
    • Crankcase ventilation system
  • Mounting System
    • Low efficiency isolators
    • Low efficiency isolators puck
    • Low isolators
    • Spring type vibration isolators
  • Power Connections
    • Low voltage - Power connection options
    • Electrically operated circuit breakers
    • Low voltage - Package mounted circuit breakers
    • Low voltage - 1400 and 1600 Frame generators
  • Special Tests / Reports
    • Custom generator TVA report
    • PGS Test report @ 1.0 power factor
    • Generator fuel consumption test
    • Standard generator TVA report
    • PGS Test report @ 0.8 power factor
    • Generator test report
    • Standard engine test charge
  • Starting / Charging System
    • 20 Amp Battery charger
    • 10 Amp Battery charger
    • Electric starting motors
    • Starter cover
    • Batteries, racks and cables
    • Jacket water heater wiring groups
    • Jacket water heaters
    • 35 Amp Battery charger
  • 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
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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