3512B  Diesel Generator Sets
3512B Diesel Generator Sets
3512B Diesel Generator Sets
3512B Diesel Generator Sets
Diesel generator sets

3512B (60 Hz) 1500 kW with Upgradeable Package

Our industrial diesel generators produce reliable power from 1230 to 1500 kW at 60 Hz. The 3512B diesel gensets are made to provide continuous power solutions for your business operation as well as supply standby and emergency power. Diesel engines are parallelable and meet prime applications. We've designed each to ISO 8528-5 transient response requirements and to accept 100% rated load in one step. Cat® generators are available in low fuel consumption and low emissions configurations.
FAQS
Q. Can we burn HVO (hydrotreated vegetable oil) in this generator to help achieve our Sustainability goals?
A. Yes, the 3512B can burn HVO to help reduce emissions.
Q. Does the Cat generator meet 10 second starting requirements?
A. Yes, with the appropriate configuration our generators are capable of 10 second starting to meet emergency needs or customer requirements.
Q. Does this generator comply with ISO 8528 guidelines?
A. Yes, the 3512B, like all of our generators, is tested in accordance with the load steps outlined in with ISO 8528, Part 5.
Q. Is this generator noisy?
A. We offer a number of options for sound attenuation including silencers and sound attenuated enclosures for many of our generators to reduce the dB(A) levels.
Q. Where can I obtain replacement parts for a Cat generator?
A. Replacement spares are available from Cat dealers in over 200 countries worldwide.

  • Emissions/Fuel StrategyLow Fuel, Low Emissions
  • Voltage380 to 480 Volts
  • Frequency60 Hz
  • Duty CycleStandby, Mission Critical, Prime, Continuous
  • Maximum Rating1500 kW
  • Minimum Rating1230 kW
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Generator Set Specifications
Standby Rating 1500/1400 kW
Prime Power Rating 1360/1275 kW
Emissions/Fuel Strategy Low Fuel, Low Emissions
Voltage 380 to 480 Volts
Frequency 60 Hz
Speed 1800 rpm
Duty Cycle Standby, Mission Critical, Prime, Continuous
Maximum Rating 1500 kW
Minimum Rating 1230 kW
Engine Specifications
Engine Model 3512B TA, V-12, 4-Stroke Water-Cooled Diesel
Bore 6.69 in
Stroke 7.48 in
Displacement 51.8 in³
Compression Ratio 14.0:1 Std 15.5:1 HD
Aspiration TA
Fuel System Electronic Unit Injection
Governor Type ADEM™ A3
Generator Set Dimensions
Length - Maximum 207.8 in
Width - Maximum 90 in
Height - Maximum 94.9 in
Dry Weight - Genset (minimum) 24297 lb
Dry Weight - Genset (maximum) 24959 lb

Air Inlet System

  • Air cleaner; single element canister type with service indicator

Control System

  • True RMS AC metering, 3-phase, +/-2% accuracy

Control Panel

  • DC volts
  • 24 Volt DC operation
  • kVA (per phase, average & percent)
  • Engine cool-down timer
  • Coolant temperature
  • kW-hr (total)
  • Amps (per phase & average)
  • Over/under frequency (81 o/u)
  • Text alarm/event descriptions
  • Accessory module data link
  • Alarm acknowledge
  • Warning/shutdown with common LED indication of shutdowns for:
  • Auto/start/stop control
  • Controls:
  • Failure to start (overcrank)
  • Generator mounted - rear facing
  • kVAr (per phase, average & percent)
  • kVAr-hr (total)
  • Reverse reactive power (kVAr) (32RV)
  • Volts (L-L & L-N)
  • Serial annunciator module data link
  • 4 programmable relay outputs (Form A)
  • Lamp test
  • Operating hours
  • Overcurrent (50/51)
  • kW (per phase, average & percent)
  • Communications:
  • 6 programmable digital inputs
  • RPM
  • Engine cycle crank
  • 2 Programmable relay outputs (Form C)
  • IVR includes reactive droop capability, 3-phase voltage sensing
  • High coolant temperature
  • Digital indication for:
  • Environmental sealed front face
  • Power factor (per phase & average)
  • Speed adjust
  • Emergency stop pushbutton
  • Limiter and exciter diode monitor
  • Low oil pressure
  • EMCP 4.2B
  • Low coolant level
  • 2 Programmable digital outputs
  • KVAR/PF modes, RFI suppression, min/max exciter
  • Oil pressure (psi, kPa or bar)
  • Customer data link (Modbus RTU)
  • True RMS AC metering, 3-phase, +/-2% accuracy
  • Overspeed
  • Frequency (Hz)
  • Emergency stop
  • Generator set packages include Caterpillar's voltage regulator (IVR)
  • Reverse power (kW) (32)
  • Low coolant temperature
  • Generator phase sequence
  • Programmable protective relaying functions:
  • Over/under voltage (27/59)

Cooling System

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

Exhaust

  • Dry exhaust manifold
  • Flanged faced outlet(s)

Fuel System

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

Generators and Attachments

  • NEMA Class H insulation
  • Winding temperature detectors
  • Internal excitation (IE) or Permanent magnet excitation (PMG)
  • LV
  • 6 Lead
  • 60 Hz models: NEMA standard hole pattern
  • Class H temperature rise at 40C ambient (125C prime / 150C standby)
  • 3 Phase brushless, Salient pole
  • Busbar connections, top center mounted, top cable entry
  • Random wound

Governing System

  • Woodward 2301A isochronous governor

Lube System

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

Mounting System

  • Rails - engine/generator/radiator mounting
  • Rubber anti-vibration mounts - shipped loose

Starting / Charging System

  • Battery disconnect switch
  • Battery and battery rack w/cables
  • 24-Volt electric starting motor
  • 50 Amp Charging alternator

General

  • SAE standard rotation
  • Paint - Caterpillar yellow with high gloss black rails & radiator
  • Flywheel and Flywheel housing-SAE No. 00
  • RH service
  • Electric Power Ratings Guide
    application/pdf
    Download ↓
  • 3512B, 60 Hz, 1400 ekW Standby/MC, 1275 ekW Prime, Low Fuel Consumption or Low Emissions Spec Sheet
    application/pdf
    Download ↓
  • 3512B, 60 Hz, 1500 ekW Standby/MC, 1360 ekW Prime, 1230 ekW Cont., Low Fuel Consumption or Low Emissions Spec Sheet
    application/pdf
    Download ↓
  • 3512B, 60 Hz, 1275 ekW, Prime-DCP, Low Fuel Consumption or Low Emissions Spec Sheet
    application/pdf
    Download ↓
  • 3512B, 60 Hz, 1360 ekW, Prime-DCP, Low Fuel Consumption or Low Emissions Spec Sheet
    application/pdf
    Download ↓
Need installed dimensions with enclosure and tank? See Model Configurations