3512 (60 Hz) with Upgradeable Package

3512 with Upgradeable Package

Producing reliable power from 890 to 1250 eKW 60 Hz, our 3512 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% rated load in one step. Generator sets are optimized for low fuel consumption.

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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

One Safe Source

  • Components used in the generator set are selected based on seamless design integration to provide the optimum 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

Worldwide 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

Virtual Tours

Documents & Brochures

Standard Equipment

Air Inlet System
  • Air cleaner; single element canister type with service indicator
Control Panel
  • Auto/start/stop control
  • True RMS AC metering, 3-phase, +/-2% accuracy
  • kVAr-hr (total)
  • EMCP 4.2B
  • kVAr (per phase, average & percent)
  • Customer data link (Modbus RTU)
  • KVAR/PF modes, RFI suppression, min/max exciter
  • Overcurrent (50/51)
  • IVR includes reactive droop capability, 3-phase voltage sensing
  • Generator phase sequence
  • 6 programmable digital inputs
  • Engine cool-down timer
  • Limiter and exciter diode monitor
  • Over/under voltage (27/59)
  • Low coolant temperature
  • Generator set packages include Caterpillar's voltage regulator (IVR)
  • Accessory module data link
  • Low oil pressure
  • Over/under frequency (81 o/u)
  • Generator mounted - rear facing
  • Reverse reactive power (kVAr) (32RV)
  • Emergency stop
  • Lamp test
  • Overspeed
  • kVA (per phase, average & percent)
  • Operating hours
  • DC volts
  • Low coolant level
  • Programmable protective relaying functions:
  • Frequency (Hz)
  • Amps (per phase & average)
  • Environmental sealed front face
  • Failure to start (overcrank)
  • Power factor (per phase & average)
  • Controls:
  • kW (per phase, average & percent)
  • Oil pressure (psi, kPa or bar)
  • 24 Volt DC operation
  • 4 programmable relay outputs (Form A)
  • Emergency stop pushbutton
  • 2 Programmable relay outputs (Form C)
  • RPM
  • Digital indication for:
  • Engine cycle crank
  • Speed adjust
  • Coolant temperature
  • 2 Programmable digital outputs
  • Text alarm/event descriptions
  • Serial annunciator module data link
  • Communications:
  • kW-hr (total)
  • Volts (L-L & L-N)
  • Alarm acknowledge
  • Warning/shutdown with common LED indication of shutdowns for:
  • Reverse power (kW) (32)
  • High coolant temperature
Cooling System
  • Coolant level sensors (Not included with packages without radiator)
  • Coolant drain line with valve
  • Fan and belt guards
  • JWAC
  • Caterpillar extended life coolant. (Not included with packages without radiator, installed SF44CTS, shipped loose radiators or heat exchangers)
  • Caterpillar extended life coolant. (Not included with packages without radiator, installed SF44CTS, shipped loose radiators or heat exchangers)
Exhaust
  • Dry exhaust manifold
  • Flanged faced outlet(s)
Fuel System
  • Fuel priming pump
  • Fuel cooler; not included with packages without radiator
  • Secondary fuel filters
  • Flexible fuel lines - shipped loose
Generators and Attachments
  • Internal excitation (IE) or Permanent magnet excitation (PMG)
  • Winding temperature detectors
  • 6 Lead
  • LV
  • 60 Hz models: NEMA standard hole pattern
  • Busbar connections, top center mounted, top cable entry
  • 3 Phase brushless, Salient pole
  • Random wound
  • NEMA Class H insulation
  • Class H temperature rise at 40C ambient (125C prime / 150C standby)
  • KVAR/PF modes
  • Exciter diode monitor
  • Caterpillar's digital voltage regulator (CDVR) includes:
  • RFI suppression
  • Reactive droop capability
  • Min / max exciter limiter
  • Note: 1800 Frames are form wound, permanent magnet excitation (PMG), with winding temp detectors
  • Generator set packages include: Regulator (CDVR)
  • 3 Phase voltage sensing
Governing System
  • Woodward 2301A isochronous governor
Lube System
  • Fumes disposal
  • Lubricating oil
  • Gear type lube oil pump
  • Oil filter, filler and dipstick
  • Integral lube Oil cooler
  • Oil drain lines and valve
Mounting System
  • Rails - engine/generator/radiator mounting
  • Rubber anti-vibration mounts - shipped loose
Starting / Charging System
  • 24-Volt electric starting motor
  • Battery and battery rack w/cables
  • 50 Amp Charging alternator
  • Battery disconnect switch
General
  • Flywheel and Flywheel housing-SAE No. 00
  • SAE standard rotation
  • RH service
  • Paint - Caterpillar yellow with high gloss black rails & radiator

Additional information

Offering Type

Generator Set Specifications - Standby Rating

1250/1100 ekW
Generator Set Specifications - Prime Power Rating

1135/1000 ekW
Generator Set Specifications - Emissions/Fuel Strategy

Low Fuel Consumption
Generator Set Specifications - Voltage

380 to 480 Volts
Generator Set Specifications - Frequency

60 Hz
Generator Set Specifications - Speed

1800 rpm
Generator Set Specifications - Duty Cycle

Standby, Mission Critical, Prime, Continuous
Generator Set Specifications - Maximum Rating

1250 ekW
Generator Set Specifications - Minimum Rating

890 ekW
Engine Specifications - Engine Model

3512A, V-12, 4-Stroke Water-Cooled Diesel
Engine Specifications - Bore

170 mm ( 6.69 in )
Engine Specifications - Stroke

190 mm ( 7.48 in )
Engine Specifications - Displacement

51.8 l ( 3161.03 in³ )
Engine Specifications - Compression Ratio

13.5:1
Engine Specifications - Aspiration

TA
Engine Specifications - Fuel System

MUI
Engine Specifications - Governor Type

Woodward
Generator Set Dimensions - Length - Maximum

5169 mm ( 203.5 in )
Generator Set Dimensions - Width - Maximum

2015 mm ( 79.3 in )
Generator Set Dimensions - Height - Maximum

2336 mm ( 92 in )
Generator Set Dimensions - Dry Weight - Genset (minimum)

10024 kg ( 22099 lb )
Generator Set Dimensions - Dry Weight - Genset (maximum)

10224 kg ( 22540 lb )

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  • Power Systems
  • Attachments
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