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
Height - Maximum94.9 in
Length - Maximum217.1 in
Width - Maximum90 in
Minimum Rating1230 eKW
Maximum Rating1500 eKW
Voltage380 to 480 Volts
Frequency60 Hz
Speed1800 rpm
Duty CycleContinuous, Prime, Standby, Mission Critical
Generator Set Configurations
Emissions/Fuel StrategyLow Fuel Consumption, Low Emissions
Engine Specifications
Engine Model3512B TA, V-12, 4-Stroke Water-Cooled Diesel
Compression Ratio14.0:1 Std 15.5:1 HD
AspirationTA
Governor TypeADEM™A3
Fuel SystemElectronic Unit Injection
Bore6.69 in
Displacement - HD3573.55 in³
Displacement - Std3161.03 in³
Stroke - HD8.46 in
Stroke - Standard7.48 in
Air InletSingle element canister style with service indicator
Exhaust Flange Size203.2 mm (8.0 in)

Cat Generator Set Packages Have Been Fully Prototype Tested, And Certified Torsional Vibration Analysis Reports Are Available. The Packages Are Designed To Accept 100% Load In One Step, Meet The Nfpa 110 Requirement For Loading, And Conform To The Iso 8528-5 Steady State And Transient Response Requirements

The Four Cycle Cat Diesel Engine Combines Consistent Performance With Excellent Fuel Economy And Transient Response That Meets Or Exceeds Iso 8528-5. The Engines Have Been Designed And Built For A Wide Range Of Applications And Can Be Optimized For Low Fuel Consumption Or Low Emissions. The Engines Feature A Reliable, Rugged, And Durable Design That Has Been Field Proven In Thousands Of Applications Worldwide From Emergency Standby Installations To Continuously Operating Power Plants.

The Generators Used On Cat Packages Have Been Designed And Tested To Work With The Cat Engine. The Generators Are Built With Robust Class H Insulation And Provide Industry Leading Motor Starting Capability. Random Wound Generators Provide Good Generator Performance In A Majority Of Applications And Form Wound Is Available For Harsh Mechanical And Electrical Environments.

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.

The Cooling System Has Been Designed To Operate In Standard Ambient Temperatures Up To 50°c (122°f), With Optional High Ambient Radiators Available. The Factory Installed Cooling System Has Been Designed And Tested To Ensure Proper Generator Set Cooling, And Includes The Radiator, Fan, Belts, And All Guarding Installed As Standard. Contact Your Cat Dealer For Specific Ambient And Altitude Capabilities.

Fully Prototype Tested With Certified Torsional Vibration Analysis Available

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.

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
Cooling System
  • Optional radiator arrangements
  • Water level gauge
  • Coolant
Control System
  • Generator yemperature monitoring
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
Mounting System
  • Spring type vibration isolator
  • Low efficiency isolators puck
  • Low efficiency isolators
  • Spring type vibration isolator
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
Power Connections
  • Low voltage - 1400 and 1600 Frame generators
  • Low voltage - Power connection options
  • Low voltage - Package mounted circuit breakers
  • Electrically operated circuit breakers
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 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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Why Cat is Better. Machine Comparison

"
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
Ed Dawe
EPG Sales Engineer
858.376.6824 office
808.342.1300 mobile
edawe@hawthornecat.com

Phillip J. Smith (PJ)
Field Service Manager
858.376.6874 office
858.688.0134 mobile
psmith@hawthornecat.com

Paul Karpf
Rental Power Manager
858.376.6888 office
858.688.0039 mobile
pkarpf@hawthornecat.com

Tom Bonham
Product Support Sales Manager
858.376.6898 office
442.248.2108 mobile
tbonham@hawthornecat.com

Hawaii – Power
Cliff Yuen
Engine Business Manager
808.676.0322 office
808.349.7767 mobile
cyuen@hawthornecat.com

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Myver Hecita
Power Systems Rental &
Sales Representative
671.649.4241 office
671.898.2740 mobile
mhecita@hawthornecat.com