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Overview

The 3512 diesel generator sets have been developed to meet your mission critical, continuous, standby and prime applications. Producing reliable power from 1000 to 1400 kVA at 50 Hz, each generator set is designed to meet ISO 8528-5 transient response requirements and accept 100 percent rated load in one step. And each is designed for low fuel consumption reducing operating costs. Our integrated control system, including Cat® UPS, ATS and switchgear, secure your power supply and keep you connected to your fleet through on-site and remote monitoring options. The EMCP4 control panel provides a flexible control platform, with an easy-to-use display — it's your single source for management and diagnostics tools. The EMCP 4.4 controller provides multi-generator set paralleling capability, giving you the ability to add generator sets to match your growing power requirements. It's not just quality that matters but customization, choose from a broad range of accessories and bolt-on system expansion attachments. Discover our flexible packaging options to work with your spatial restrictions and environmental conditions. Our 3512 generator sets are developed for such prerequisites, so that you can meet your specific power needs.

Generator Set Specifications

Units:
Minimum Rating 1000 kVA 1000 kVA Less
Maximum Rating 1400 kVA 1400 kVA Less
Emissions/Fuel Strategy Low Fuel Consumption Low Fuel Consumption Less
Voltage 220 to 13800 Volts 220 to 13800 Volts Less
Frequency 50 Hz 50 Hz Less
Speed 1500 rpm 1500 rpm Less
Duty Cycle Standby, Mission Critical, Prime, Continuous Standby, Mission Critical, Prime, Continuous Less

Engine Specifications

Engine Model 3512 TA, V-12, 4-Stroke Water-Cooled Diesel 3512 TA, V-12, 4-Stroke Water-Cooled Diesel Less
Bore 6.69 in 170.0 mm Less
Stroke 7.48 in 190.0 mm Less
Displacement 3161.03 in³ 51.8 l Less
Compression Ratio 13.5:1 13.5:1 Less
Aspiration TA TA Less
Fuel System Direct Unit Injection Direct Unit Injection Less
Governor Type Woodward Woodward Less

Generator Set Dimensions

Length - Minimum 202.7 in 5149.0 mm Less
Length - Maximum 206.6 in 5249.0 mm Less
Width - Maximum 77.8 in 1975.0 mm Less
Height - Maximum 93.2 in 2367.0 mm Less
Dry Weight - Genset (minimum) 22650.0 lb 10270.0 kg Less
Dry Weight - Genset (maximum) 23170.0 lb 10510.0 kg Less

Cat Generator Set Package

  • Cat generator set packages have been fully prototype tested
  • Accepts 100% block load in one step and meets other 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
  • Alternator

  • Matched to the performance and output characteristics of Cat engines
  • Industry leading mechanical and electrical design
  • Industry leading motor starting capabilities
  • High Efficiency
  • 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
  • Certifications

  • IBC Seismic Certification
  • EU Declaration of Conformity
  • Eurasian Conformity
  • 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
  • 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
  • 3512 (50 Hz) Standard Equipment

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

    Control Panel
    • EMCP4.2 controls including: Emergency stop pushbutton
    • EMCP4.2 controller including:
    • 24-volt DC operation
    • Environmental sealed front face
    • Text alarm / event descriptions
    • Generator mounted - rear facing
    • Controls:
    • Speed adjust
    • Auto / start / stop control
    • Engine cool-down timer
    • Engine cycle crank
    • Alarm acknowledge
    • Lamp test
    • True RMS AC metering, 3-phase, +/-2% accuracy
    • Digital indication for:
    • RPM
    • DC volts
    • Operating hours
    • Oil pressure (psi, kPa or bar)
    • Coolant temperature
    • Volts (L-L & L-N)
    • Frequency (Hz)
    • Amps (per phase & average)
    • Power Factor (per phase & average)
    • kW (per phase, average & percent)
    • kVA (per phase, average & percent)
    • kVAr (per phase, average & percent)
    • kW-hr (total)
    • kVAr-hr (total)
    • Warning/shutdown with common LED indication of shutdowns for:
    • Low oil pressure
    • High coolant temperature
    • Overspeed
    • Emergency stop
    • Failure to start (overcrank)
    • Low coolant temperature
    • Low coolant level
    • Programmable protective relaying functions:
    • Generator phase sequence
    • Over / under voltage (27 / 59)
    • Over / under frequency (81 o / u)
    • Reverse Power (kW) (32)
    • Reverse Reactive Power (kVAr) (32RV)
    • Overcurrent (50 / 51)
    • Communications:
    • Customer data link (Modbus RTU)
    • Accessory module data link
    • Serial annunciator module data link
    • 6 programmable digital inputs
    • 4 programmable relay outputs (Form A)
    • 2 programmable relay outputs (Form C)
    • 2 programmable digital outputs

    Cooling System
    • JWAC
    • Radiator fan and fan drive
    • Fan and belt guards
    • Coolant drain line with valve
    • Coolant level sensors. (Not included with packages without radiator)
    • Caterpillar extended life coolant. (Not included with packages without radiator, installed SF44CTS, shipped loose radiators or heat exchangers)

    Exhaust System
    • Dry Exhaust Manifold
    • Flanged faced outlet(s)

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

    Generators and Attachments
    • 3 Phase brushless, salient pole
    • 6 Lead
    • Generator set packages include: Regulator (CDVR)
    • Caterpillar's Digital Voltage Regulator (CDVR) includes:
    • Reactive droop capability
    • 3 Phase voltage sensing
    • KVAR/PF modes
    • RFI suppression
    • Min / max exciter limiter
    • Exciter diode monitor
    • LV:
    • Random wound
    • Internal Excitation
    • NEMA Class H insulation
    • Class H temperature rise at 40C ambient (125C prime/150C standby)
    • Winding temperature detectors
    • Busbar connections, top center mounted, top cable entry
    • 50 Hz models: IEC standard hole pattern
    • Note: 1800 frames are form wound, permanent magnet, with winding temp detectors

    Governing System
    • Woodward 2301A isochronous governor

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

    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
    • Battery disconnect switch

    General
    • Paint - Caterpillar Yellow with high gloss black rails & radiator
    • RH Service
    • Flywheel and Flywheel housing - SAE No. 00
    • SAE Standard Rotation

    3512 (50 Hz) Optional Equipment

    Air Inlet System
    • Dual Element air cleaners
    • Remote air inlet adaptors
    • Air Inlet protection

    Circuit Breakers
    • Optional busbar power connections
    • Breaker harnesses
    • Center posts busbars
    • Cable entry options
    • Controls packaging - Enclosures
    • EMAX circuit breakers
    • 2000, 2500, 3200 and 4000 Amp, 3 pole, IEC rated circuit breakers
    • 2000, 2500, 3200 and 4000 Amp, 4 pole, IEC rated circuit breakers
    • Busbar connections
    • EMAX breakers connections

    Control Panel
    • EMCP 4.3, EMCP 4.4
    • Customer connection mounting locations
    • Annunciator Modules
    • Governors
    • Mounting Group - External Box Clips
    • Auxiliary Boxes
    • Customer Interface Options
    • Generator Temperature Monitoring
    • Remote speed adjust
    • Vandle proof panel door
    • Local PC monitoring
    • Ground (Automatically selected)

    Cooling System
    • Optional radiator arrangements
    • Water level switch gauges
    • Heat exchangers

    European Certifications
    • European Union Certification
    • EU declaration of conformity
    • Eurasian conformity (EAC) mark
    • European directive genset, DoI (Declaration of Incorporation)

    Exhaust System
    • Mufflers
    • Muffler mounting kits
    • Flexible fittings
    • Through-wall installation kit

    Fuel System
    • Primary fuel filter

    Generators and Attachments
    • 380/400/415volts @ 50 Hz, 3 phase, random wound, internal excitation, No. of leads = 6, pitch= 0.6667
    • 380/400/415volts @ 50 Hz, 3 phase, random wound, permanent magnet, No. of leads = 6, pitch= 0.6667
    • 380/400/415volts @ 50 Hz, 3 phase, form wound, permanent magnet, No. of leads = 6, pitch= 0.6667
    • Generator conversion
    • Space heater

    Instrumentation
    • Pyrometer and thermocouples

    Lube System
    • Oil level Reg-1 shallow pan
    • Electric prelube pumps
    • Manual prelube sump pumps

    Mounting System
    • Spring-type vibration isolator
    • IBC vibration isolators

    Protection System
    • Explosion relief valve

    Special Tests / Reports
    • Neutral grounding connection
    • Neutral ground-LV
    • PGS test report @ 1.0 power factor
    • PGS test report @ 0.8 power factor
    • IBC seismic certifications

    Starting / Charging Systems
    • 10 Amp battery chargers
    • 20 Amp battery charger
    • Oversize battery set
    • 24 Volt dual electric starting motor
    • Ether starting aid
    • Jacket water heaters

    General
    • Engine barring group

    Why Choose Cat® Electric Power?

    Caterpillar offers a comprehensive variety of electric power systems, customised to fit your needs. Our specialised systems deliver high power and performance in industries across the globe. With Caterpillar, you get outstanding manufacturing quality, expert support, and the essential tools and applications to complete any project.

    Learn More About Electric Power

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    Application Center

    Explore valuable resources for generator sizing, specification, and training materials. SpecSizer evaluates load types, collects data, and organises it to help you select the generator set that's best for you. Find product comparisons, technical data, product sizing, and more using our technical information portal (TIP) specifically created for consultants, architects, engineers, and owners.

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