3512B Diesel Generator Set

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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Minimum Rating 1320 kVA
Maximum Rating 1875 kVA
Emissions/Fuel Strategy Low Fuel , Low Emissions
Voltage 400 to 415 Volts
Frequency 50 Hz
Speed 1500 rpm
Duty Cycle Standby, Mission Critical, Prime, Continuous
Engine Model 3512B TA, V-12, 4-Stroke Water-Cooled Diesel
Bore 6.69 in
Stroke 7.48 in
Stroke - HD 8.46 in
Displacement 3161.03 in
Displacement - HD 3573.55 in³
Compression Ratio 14.0:1 Std 15.5:1 HD
Aspiration TA
Fuel System Electronic Unit Injection
Governor Type ADEM™A3
Length - Minimum 212.8 in
Length - Maximum 217.1 in
Width - Minimum 90 in
Width - Maximum 90 in
Height - Minimum 94.9 in
Height - Maximum 94.9 in
Dry Weight - Genset (minimum) 25620 lb
Dry Weight - Genset (maximum) 26530 lb
Control System
  • Warnings / Shutdown indicators
  • Emergency stop pushbutton
  • 24 Volt DC operation
  • Digital indication for:
  • Lamp test
  • Emergency stop
  • Auto / start / stop control
  • Overspeed
  • Low oil pressure
  • Engine cycle crank
  • Low coolant level
  • Frequency (Hz)
  • 4 Programmable digital inputs
  • Operating hours
  • True RMS AC metering, 3-phase, +/-2% accuracy
  • Communications
  • Oil pressure
  • Speed adjust
  • DC volts
  • High coolant temperature
  • Coolant temperature
  • Amps (per phase & average)
  • Engine cool-down timer.
  • RPM
  • EMCP 4.2B
  • Failure to start (overcrank)
  • Volts (L-L & L-N)
  • 4 Programmable digital outputs
  • Alarm acknowledge
Governing System
  • ADEM III
Cooling System
  • Coolant level sensors
  • SCAC
  • Radiator fan and fan drive
  • Caterpillar extended life coolant
  • Coolant drain line with valve
  • Fan and belt guards
Exhaust System
  • Flanged faced outlet(s)
  • Dry Exhaust Manifold
Fuel System
  • Flexible fuel lines
  • Fuel priming pump
  • Secondary fuel filters.
  • Fuel cooler; not included with packages without radiator
Generator System
  • Min / max exciter
  • Caterpillar's Digital Voltage Regulator (CDVR)
  • Class H temperature rise at 40C ambient
  • Bus bar connections
  • Winding temperature detectors
  • RFI suppression
  • 3 Phase voltage sensing
  • Internal Excitation
  • Random wound
  • 3 phase brushless, salient pole
  • 6 Leads
  • NEMA Class H insulation
Literature
  • English
Lube System
  • Gear type lube oil pump
  • Oil filter, filler and dipstick
  • Fumes disposal
  • Oil drain lines and valve
  • Lubricating oil
  • Integral lube oil cooler
Mounting System
  • Rails - engine / generator / radiator mounting
General
  • RH Service
  • Flywheel and Flywheel housing-SAE
  • Caterpillar yellow with high gloss black rails & radiator
  • SAE standard rotation
Air Inlet System
  • Heavy duty air cleaner
  • Dual element air cleaner
  • Single element filter
Exhaust
  • Exhaust mufflers
Generator
  • Internal excitation (IE)
  • Oversize and premium generators
  • Permanent magnet excitation (PMG)
  • Anti-condensation heater
Control System
  • Generator yemperature monitoring
  • Neutral to ground connection
  • Local annunciator modules (Low voltage)
  • EMCP 4.3, EMCP 4.4
  • Cat Connect: Ethernet telematics / Satellite telematics / Cell telematics
  • Annunciator modules (Local and remote)
  • Load share module options (LV)
  • CAN2 network equipment
  • Governors (MUI-low voltage)
  • Customer interface options
  • Annunciator network equipment
  • Remote annunciator modules (Low voltage)
  • EMCP voltage and current sensing groups
Power Termination
  • Circuit breakers, UL listed
  • Circuit breakers, IEC compliant
Cooling System
  • Installed radiators
  • Cooling system attachments
  • Water level switch gauges
  • Coolant
Mounting
  • Rubber anti-vibration mounts
  • IBC isolators
  • Spring-type vibration isolator
Starting/Charging
  • Charging alternator
  • Heavy-duty starting system
  • Oversize batteries
  • Air starting motor with control and silencer
  • Jacket water heater
  • Battery chargers
Exhaust System
  • Y Adapters
  • Mufflers
  • Flexible fittings
  • Flange and exhaust expanders
  • Elbows
Factory Support
  • Factory commissioning
Fuel System
  • Primary fuel filter
  • Secondary fuel filters
Generators and Attachments
  • Low voltage generators 380, 400, 415 Volts 3 Phase, 1500 rpm
  • Space heater kit
  • 1400 and 1600 Frame
  • Pitch 0.6667
  • 6 Leads
  • Internally excitation
  • Generator conversion kits - PM to IE / IE to PM
  • Permanent magnet
  • RW
General
  • UL 2200 package
  • 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
  • EU Certificate of Conformance (CE)
Instrumentation
  • Pyrometer and thermocouples
Lube System
  • Drain GP oil pan
  • Lube oil filters
  • Oil level regulator
  • Standard sump oil pan
  • Lube oil in standard sump
  • Prelube pump groups
Crankcase System
  • Crankcase protection group
  • Crankcase ventilation system
Mounting System
  • Low efficiency isolators
  • Spring type vibration isolator
  • Low efficiency isolators puck
  • Low isolators
Power Connections
  • Low voltage - Package mounted circuit breakers
  • Electrically operated circuit breakers
  • Low voltage - 1400 and 1600 Frame generators
  • Low voltage - Power connection options
Special Tests / Reports
  • Standard generator TVA report
  • Standard engine test charge
  • Generator test report
  • PGS test report @ 1.0 power factor
  • Custom generator TVA report
  • Generator fuel consumption test
  • PGS test report @ 0.8 power factor
Starting / Charging System
  • Batteries, racks and cables
  • 10 Amp battery charger
  • Starter covers
  • Electric starting motors
  • Jacket water heaters
  • 20 Amp battery charger
  • Jacket water heater wiring groups
  • 35 Amp battery charger
Extended Service Coverage
  • Silver - 36 ,48, 60, 120 month coverage
  • Gold - 36,48, 60, 120 month coverage
  • Cat branded commercial power system
  • Platinum - 24, 36, 48, 60, 120 month coverage