New | 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.

Generator Set Specifications
Minimum Rating1230 eKW
Maximum Rating1500 eKW
Emissions/Fuel StrategyLow Fuel Consumption, Low Emissions
Voltage380 to 480 Volts
Frequency60 Hz
Speed1800 rpm
Duty CycleStandby, Mission Critical, Prime, Continuous
Engine Specifications
Engine Model3512B TA, V-12, 4-Stroke Water-Cooled Diesel
Bore6.69 in
Stroke7.48 in
Displacement51.8 in
Compression Ratio14.0:1 Std 15.5:1 HD
AspirationTA
Fuel SystemElectronic Unit Injection
Governor TypeADEM™A3
Generator Set Dimensions
Length - Maximum207.8 in
Width - Maximum90 in
Height - Maximum94.9 in
Dry Weight - Genset (minimum)24297 lb
Dry Weight - Genset (maximum)24959 lb

  • 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
  • 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

  • superior Motor Starting Capability Minimizes Need For Oversizing Alternator
  • designed To Match Performance And Output Characteristics Of Cat Diesel Engines
  • robust Class H Insulation
  • 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
  • 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
  • ibc Seismic Certification
  • oshpd Pre-Approval
  • eec Declaration Of Conformity
  • 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
  • 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
  • Standard Equipment

    Air Inlet System
    • Air cleaner; single element canister type with service indicator
    Control System
    • True RMS AC metering, 3-phase, +/-2% accuracy
    Control Panel
    • EMCP 4.2B
    • Emergency stop pushbutton
    • 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 and exciter diode monitor
    • 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
    • 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 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
    • LV:
    • Random wound
    • Internal excitation or permanent magnet
    • 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
    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
    • 50 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

    Optional Equipment

    Air Inlet System
    • Single stage air cleaners
    • Duel element air filters
    • Air Cleaner: Includes installed single element Cat filter and service indicator
    Control Panels
    • EMCP 4.3, EMCP 4.4
    • Locale discrete I / O package
    • Cat connect (must choose one)
    • First local annunicator
    • CAN 2 network equipment
    • RTD module - may select one
    • Remote custom annunciator
    • Vandle proof panel door
    • Modbus monitoring of packages
    Control System
    • Generator yemperature monitoring
    Cooling System
    • Optional radiator arrangements
    • Water level gauge
    • Coolant
    Exhaust System
    • Mufflers
    • Exhaust Y adapters
    • Flexible fittings
    • Exhaust Elbows
    • Exhaust flange and expanders
    Generators and Attachments
    • Generator conversion
    • Space heater
    • Space heater control
    Instrumentation
    • Pyrometer and thermocouples
    Lube System
    • Lube oil
    • Prelube manual sump pump
    • Electric prelube sump pump
    • Oil level regulator
    Special Tests / Reports
    • Generator test report
    • PGS test report @ 0.8 power factor
    • Torsional vibration analysis
    • PGS test report @ 1.0 power factor
    • Standard engine test charge
    • PGS test report @ 1.0 power factor
    • PGS test report @ 0.8 power factor
    • Generator test report
    • Standard generator TVA report
    • Custom generator TVA report
    • Generator fuel consumption test
    • Standard engine test charge
    Starting / Charging Systems
    • Starter covers
    • Jacket water heater
    • Electric starting motors
    General
    • Barring devices
    Crankcase System
    • Ventilation system
    • Protection systems
    Batteries and Battery Housing
    • 24 Volt battery set - Dry
    • Battery chargers - 10, 20 and 35 amp
    Power Connection System
    • EMCP voltage and current sensing groups
    • Breaker power connections
    • Center post busbar
    Circuit Breaker - LV Packages
    • Right hand power connections
    • Electronically operated circuit breakers
    Mounting System
    • Spring type vibration isolator
    • Low efficiency isolators puck
    • Low efficiency isolators
    • Spring type vibration isolator
    Power Connections
    • Low voltage - 1400 and 1600 Frame generators
    • Low voltage - Power connection options
    • Low voltage - Package mounted circuit breakers
    • Electrically operated circuit breakers
    Starting / Charging System
    • 10 Amp battery charger
    • 20 Amp battery charger
    • 35 Amp battery charger
    • Electric starting motors
    • Starter covers
    • Jacket water heaters
    • Jacket water heater wiring groups
    • Batteries, racks and cables
    Extended Service Coverage
    • Cat branded commercial power system
    • Platinum - 24, 36, 48, 60, 120 month coverage
    • Silver - 36 ,48, 60, 120 month coverage
    • Gold - 36,48, 60, 120 month coverage

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    "
    With only a few days notice, we were able to get the emergency system working properly. Hawthorne Cat provided great leadership and excellent field support.
    Mark Cripe
    Helix Electric
    "

    San Diego - Power
    Kyle Farmer
    Engine Business Manager
    858.376.6821 office
    760.715.9565 mobile
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    EPG Sales Engineer
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    Used Engine Sales Manager
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    Field Service Manager
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    Director of Sales & Rentals
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    Myver Hecita
    Power Systems Rental &
    Sales Representative
    671.649.4241 office
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