3512C (1750 ekW, 60 Hz)

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Producing reliable power of 1750 ekW at 60 Hz, our 3512C diesel generator sets are made to meet your mission critical, continuous, standby and prime applications. We've designed each to ISO 8528-5 transient response requirements and to accept 100 per cent rated load in one step. Generator sets are U.S. EPA Certified for Stationary Emergency Use Only (Tier 2 Nonroad Equivalent Emission Standards)

Generator Set Specifications

Minimum Rating 1750 ekW 1750 ekW Less
Maximum Rating 1750 ekW 1750 ekW Less
Emissions/Fuel Strategy U.S. EPA Cert., Tier 2 U.S. EPA Cert., Tier 2 Less
Voltage 380 to 13800 Volts 380 to 13800 Volts Less
Frequency 60 Hz 60 Hz Less
Speed 1800 rpm 1800 rpm Less
Duty Cycle Standby, Mission Critical Standby, Mission Critical Less

Engine Specifications

Engine Model 3512C ATAAC, V-12, 4-Stroke Water-Cooled Diesel 3512C ATAAC, V-12, 4-Stroke Water-Cooled Diesel Less
Bore 6.69 in 170.0 mm Less
Stroke 8.46 in 215.0 mm Less
Displacement 3574.0 in³ 58.6 l Less
Compression Ratio 14.7:1 14.7:1 Less
Aspiration TA TA Less
Fuel System Electronic unit injection Electronic unit injection Less
Governor Type Adem™3 Adem™3 Less

Generator Set Dimensions

Length - Maximum 262.9 in 6676.8 mm Less
Width - Maximum 89.8 in 2281.2 mm Less
Height - Maximum 110.0 in 2794.0 mm Less
Dry Weight - Genset (maximum) 32660.0 lb 14820.0 kg Less

Cat Generator Set Package

  • Cat generator set packages have been fully prototype tested
  • Accepts 100% block load in one step and meets NFPA 110 loading requirements
  • Conform to ISO 8528-5 steady state and transient response requirements

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

SR5 Alternator

  • Superior motor starting capability minimizes need for oversizing alternator
  • Designed to match performance and output characteristics of Cat diesel engines
  • Robust Class H insulation

EMCP 4 Control Panel

  • User-friendly interface and navigation
  • Scalable system to meet a wide range of installation requirement
  • Expansion modules and site-specific programming for specific customer requirements

Cooling System

  • Designed to operate in standard ambient temperatures up to 50°C (122°F)
  • Contact your Cat Dealer for specific ambient and altitude capabilities


  • UL2200
  • CSA Certified
  • IBC seismic certification
  • OSHPD pre-approval

One Safe Source

  • Components used in the generator set are selected at the design stage to provide optimum package performance
  • The generator set is fully assembled at a Caterpillar facility following our quality guidelines
  • Each generator set package is tested before leaving the Caterpillar facility
  • Cat product support, including dealer service, parts and warranty covers the entire Cat power system

World Wide Product Support

  • Cat dealers have over 1,800 dealer branch stores operating in 200 countries
  • Your local Cat dealer provides extensive post-sale support, including maintenance and repair agreements

3512C (1750 ekW, 60 Hz) Standard Equipment

Air Inlet System
  • Air cleaner; single element canister type with service indicator

Air Inlet
  • Air Cleaner

  • Package mounted radiator

  • Exhaust flange outlet

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

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

Power Termination
  • Bus Bar

Control Panel
  • EMCP 4 Genset Controller

Control System
  • Cat Connect
  • Failure to start (overcrank)
  • kVAr (per phase, average & percent)
  • Over / under voltage (27/59)
  • Emergency stop
  • Environmental sealed front face
  • Load histogram feature
  • Low coolant temperature
  • Speed adjust
  • Digital indication for:
  • Warning/shutdown with common LED indication of shutdowns for:
  • Reverse power (kW) (32)
  • Generator mounted - rear facing
  • Overspeed
  • Controls:
  • Coolant temperature
  • Amps (per phase & average)
  • Engine cycle crank
  • Generator set packages include Caterpillar' s Voltage Regulator (IVR). IVR includes reactive droop capability, 3-phase voltage sensing, KVAR / PF modes, RFI suppression, min/max exciter. Limiter and exciter diode monitor
  • Communications
  • Over / under frequency (81 o/u)
  • kW-hr (total)
  • Overcurrent (50/51)
  • Text alarm / event descriptions
  • 1 programmable digital outputs
  • Lamp test
  • Emergency stop pushbutton
  • Frequency (Hz)
  • Number of I/O varies on options selected
  • 4 programmable relay outputs (Form A)
  • Accessory module data link
  • Oil pressure (psi, kPa or bar)
  • kVA (per phase, average & percent)
  • Generator phase sequence
  • Volts (L-L & L-N)
  • kVAr-hr (total)
  • High coolant temperature
  • 1 programmable relay outputs (Form C)
  • Reverse reactive power (kVAr) (32RV)
  • kW (per phase, average & percent)
  • Engine cool-down timer
  • RPM
  • EMCP4.2B
  • 24-volt DC operation
  • Power Factor (per phase & average)
  • Alarm acknowledge
  • DC volts
  • Customizable screens
  • Programmable protective relaying functions:
  • Low oil pressure
  • True RMS AC metering, 3-phase, +/-2% accuracy
  • Customer data link (Modbus RTU)
  • Auto / start / stop control
  • Low coolant level
  • PLC functionality

Governing System

Cooling System
  • Caterpillar extended life coolant (Not included with packages without radiator, installed SF44CTS
  • Fan and belt guards
  • Radiator fan and fan drive
  • Coolant drain line with valve
  • Coolant level sensors (Not included with packages without radiator)
  • SCAC

Exhaust System
  • Flanged faced outlet(s)
  • Dry exhaust manifold

Fuel System
  • Secondary fuel filters
  • Fuel priming pump
  • Flexible fuel lines - shipped loose
  • Fuel cooler; not included with packages without radiator

Generators and Attachments
  • High voltage
  • 3 phase brushless, salient pole
  • Internal excitation
  • Class H insulation, Class F temperature rise at 40C ambient (105C prime/130C standby)
  • NEMA Class H insulation, Class H temperature rise at 40C ambient (125C prime/150C standby)
  • Bus bar connections, top center mounted, top cable entry
  • NEMA standard hole pattern
  • Winding temperature detectors
  • NEMA standard hole pattern
  • Random wound
  • Low voltage:
  • Medium voltage:
  • Six lead
  • Form wound
  • NEMA standard hole pattern
  • Bus bar connections, right side extension box, bottom cable entry
  • NEMA Class H insulation, Class H temperature rise at 40C ambient (125C prime / 150C standby)
  • Permanent magnet

  • English

Lube System
  • Fumes disposal
  • Gear type lube oil pump
  • Oil drain lines and valve
  • Oil filter, filler and dipstick
  • Lubricating oil
  • Integral lube oil cooler

Mounting System
  • Rubber anti-vibration mounts (shipped loose)

Starting / Charging System
  • 45 Amp charging alternator
  • 24 Volt electric starting motor
  • Battery disconnect switch
  • Battery and battery rack w/cables

  • Paint - Caterpillar Yellow except rails and radiators gloss black
  • Flywheel and Flywheel housing-SAE No. 00
  • Paint: Caterpillar yellow with high gloss black rails & radiator
  • Right hand servicing
  • SAE Standard Rotation

3512C (1750 ekW, 60 Hz) Optional Equipment

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

  • Exhaust mufflers

Air Inlet System
  • Heavy duty air cleaner
  • Single element filter

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

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

Cooling System
  • Standard installed radiators
  • Optional installed ATAAC radiators
  • Coolant
  • Standard installed ATAAC radiators
  • Water level switch gauges
  • Optional installed radiators

Exhaust System
  • Mufflers
  • Flanges
  • Flange and exhaust expanders
  • Flexible fittings
  • Y Adapters
  • Elbows

Fuel System
  • Primary fuel filter

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

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

Generators and Attachments
  • Differential current transformers (DCT) 8.7 kV class
  • Generator air cleaner
  • Low Voltage: 380,440 / 480 Volts, 3 Phase, 1800 rpm
  • 1400, 1600, 2700 Frames
  • Differential current transformers (DCT) 15 kV class
  • RW, IE, 6 leads, Pitch 0.6667
  • Space heater
  • Generator conversion from IE to PM

  • Pyrometer and thermocouples
  • Wiring GP W/O cyl sensors

Lube System
  • Lubrication oil in standard sump
  • Prelube pumps
  • Oil level regulator
  • Oil drains

Crankcase Protection
  • Crankcase ventilation system
  • No explosion relief valves
  • Explosion relief valve
  • No crankcase explosion relief valve

Mounting System
  • IBC vibration isolators
  • Spring type vibration isolators
  • Puck style low efficiency isolators

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

Power Connections
  • Rear power connections
  • Center post busbar
  • Left side power connections
  • 2000, 2500,3200 Amp, 3 Pole, IEC Rated Circuit Breakers
  • Six lead, six terminal option
  • Right side power connections
  • 2000, 2500 Amp, 4 Pole, IEC Rated Circuit Breakers
  • 1600 ,2000, 2500, 3000, 4000 Amp, 3 Pole, UL-100% rated circuit breakers
  • Neutral ground connections
  • Grounding groups
  • Cable entry - Right side

Special Tests / Reports
  • PGS test report @ 1.0 power factor
  • Generator fuel consumption test
  • Torsional vibration analysis
  • Generator test report
  • CSA certification
  • Standard engine test charge
  • IBC seismic certification
  • PGS test report @ 0.8 power factor
  • Fuel consumption test

Starting / Charging System
  • Starter covers
  • Air starting motor
  • 35 Amp battery charger
  • Air pressure regulator
  • 10 Amp battery charger
  • 24 Volt battery set - Dry
  • Engine barring device
  • Electric starting motors
  • Batteries, racks and cables:
  • Jacket water heaters

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