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Overview

Producing reliable power from 890 ekW to 1250 ekW at 60 Hz, our 3512 diesel generator sets are engineered for your mission critical, continuous, standby and prime applications. Each meet ISO 8528-5 transient response requirements and accept 100 percent rated load in one. 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. Our EMCP4 control panel provides a flexible control platform, with an easy-to-use display — it’s your single source for management and diagnostics tools. We know it’s not just quality that matters but customization. Choose from a broad range of accessories and bolt-on system expansion attachments. Find flexible packaging options to work with your spatial restrictions and environment conditions.

Generator Set Specifications

Units:
Minimum Rating 890 ekW 890 ekW Less
Maximum Rating 1250 ekW 1250 ekW Less
Voltage 220 to 13800 Volts 220 to 13800 Volts Less
Frequency 60 Hz 60 Hz Less
Speed 1800 RPM 1800 RPM Less

Generator Set Configurations

Emissions/Fuel Strategy Low Fuel Consumption Low Fuel Consumption Less

Engine Specifications

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

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
  • Generator

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

    The EMCP controller features the reliability and durability you have come to expect from your Cat equipment. EMCP4 is a scalable control platform designed to ensure reliable generator set operation, providing extensive information about power output and engine operation. EMCP4 systems can be further customized to meet your needs through programming and expansion modules.

    Design Criteria

    The generator set accepts 100% rated load in one step per NFPA 110 and meets ISO 8528-5 transient response.

    UL 2200 / CSA - Optional

  • UL 2200 listed packages
  • CSA Certified
  • Certain restrictions may apply.
  • Consult with your Cat® Dealer.
  • Single-Source Supplier

    Fully prototype tested with certified torsional vibration analysis available

    World Wide Product Support

    Cat dealers provide extensive post-sale support including maintenance and repair agreements. Cat dealers have over 1,800 dealer branch stores operating in 200 countries. The Caterpillar S•O•S℠ program cost effectively detects internal engine component condition, even the presence of unwanted fluids and combustion by-products

    3512A (60 Hz)Standard Equipment

    Air Inlet
    • 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
    • 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
    • Exciter diode monitor
    • Controls:
    • Speed adjust
    • Auto / start / stop control
    • Engine cool-down timer
    • Engine cycle crank
    • Alarm acknowledge
    • Lamp test
    • Load histogram feature
    • PLC functionality
    • Customizable screens
    • 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, number of I / O varies on options selected
    • 4 programmable relay outputs (Form A)
    • 1 programmable relay outputs (Form C)
    • 1 programmable digital outputs

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

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

    Generator and Attachments
    • 3 phase brushless, salient pole
    • 6 lead
    • LV:
    • Random wound
    • Internal Excitation
    • Winding temperature detectors
    • 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
    • 60 Hz models: NEMA standard hole pattern
    • MV:
    • Form Wound
    • Permanent Magnet
    • Winding temperature detectors
    • NEMA Class H insulation
    • Class H temperature rise at 40C ambient (125C prime/150C standby)
    • Bus bar connections, right side extension box, bottom cable entry
    • 60 Hz models: NEMA standard hole pattern
    • HV:
    • Form Wound
    • Permanent Magnet
    • Winding temperature detectors
    • Anti Condensation Space Heater
    • Class H insulation
    • Class F temperature rise at 40C ambient (105C prime/130C standby)
    • Right side extension terminal box, bus bar connections, top mounted, bottom cable entry
    • 60 Hz Models: NEMA standard hole pattern

    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
    • 45 Amp charging alternator
    • 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

    3512A (60 Hz)Optional Equipment

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

    Control Panels
    • EMCP 4.3 amd EMCP4.4 control panels
    • Remote mounted panel harness
    • Remote mounted panel harness mounting kit
    • Auxiliary Boxes
    • Cable shroud
    • Installed DIO module
    • Remote DIO module
    • RTD generator monitoring package
    • Annunciators (local and remote)
    • Modbus monitor local packages
    • Load share module
    • Vandal proof panel cover

    Cooling System
    • Optional radiator arrangements
    • Water level switch gauges
    • Coolant

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

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

    Fuel System
    • Primary fuel filter

    Generators and Attachments
    • Low Voltage:
    • 60 Hz, 380 volts, 3 phase, 1800 rpm RW, IE, No. of leads = 6, Pitch = 0.6667
    • 60 Hz, 380 volts, 3 phase, 1800 rpm RW, PM, No. of leads = 6, Pitch = 0.6667
    • 60 Hz, 440/480 volts, 3 phase, 1800 rpm RW, IE, No. of leads = 6, Pitch = 0.6667
    • 60 Hz, 440/480 volts, 3 phase, 1800 rpm RW, PM, No. of leads = 6, Pitch = 0.6667
    • 60 Hz, 480 volts, 3 phase, 1800 rpm FW, PM, No. of leads = 6, Pitch = 0.6667
    • 60 Hz, 600 volts, 3 phase, 1800 rpm RW, IE, No. of leads = 6, Pitch = 0.6667
    • 60 Hz, 600 volts, 3 phase, 1800 rpm RW, PM, No. of leads = 6, Pitch = 0.6667
    • Medium Voltage
    • 60 Hz, 4160 volts, 3 phase, 1800 rpm FW, PM, No. of leads = 6, Pitch = 0.6667
    • High Voltage
    • 60 Hz, 6300 / 6600 / 6900 volts, 3 phase, 1800 rpm FW, PM, No. of leads = 6, Pitch = 0.6667
    • 60 Hz, 12470 / 13200 / 13800 volts, 3 phase, 1800 rpm FW, PM, No. of leads = 6, Pitch = 0.6667
    • Space heater
    • Generator conversions (IE to PM)
    • Differential current transformers (DCTs) 15 kV class
    • Differential current transformers (DCTs) 8.7 kV class
    • Generator air cleaner

    General
    • US aid emblem

    Instrumentation
    • Pyrometer and thermocouples

    Lube System
    • Lube oil
    • Oil drain groups
    • Oil level regulator
    • Prelube pump groups

    Crankcase Systems
    • No crankcase explosion relief valve
    • Explosion relief valve
    • Open crankcase ventilation system

    Mounting System
    • Puck style low efficiency isolators
    • Spring type vibration isolators
    • IBC (International Building Code) vibration isolators

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

    Starting / Charging System
    • Engine barring device
    • 24 Volt dry battery set
    • 10 Amp battery charger
    • 20 Amp battery charger
    • 35 Amp battery charger
    • Electric starting motors
    • Air starting motors
    • Starter covers
    • Air pressure regulator
    • Jacket water heaters

    European Cerfications
    • European Union certification - EU Directive genset DOI
    • European Union certification - EU Declaration of Conformity
    • Eurasian conformity (EAC) mark

    Extended Service Coverage
    • Platinum, Gold and Silver extended service coverage