3512B  Diesel Generator Sets (Rear Right)
3512B  Diesel Generator Sets (Rear Left)
3512B  Diesel Generator Sets (Front Left)
3512B  Diesel Generator Sets (Front Right)
Diesel generator sets

3512B (60 Hz)

Producing reliable power from 1230 to 1500 ekW at 60 Hz, our 3512B diesel generator sets are made to meet your mission critical, continuous, standby and prime applications. We've designed each to ISO 8528-5 transient response requirements and to accept 100% rated load in one step. Generator sets offer both low fuel consumption and low emission systems.

  • Emissions/Fuel StrategyLow Fuel, Low Emissions
  • Voltage380 to 13800 Volts
  • Frequency60 Hz
  • Duty CycleStandby, Mission Critical, Prime, Continuous
  • Maximum Rating1500 ekW
  • Minimum Rating1230 ekW
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Generator Set Specifications
Standby Rating 1500/1400 ekW
Prime Power Rating 1360/1275 ekW
Emissions/Fuel Strategy Low Fuel, Low Emissions
Voltage 380 to 13800 Volts
Frequency 60 Hz
Speed 1800 rpm
Duty Cycle Standby, Mission Critical, Prime, Continuous
Maximum Rating 1500 ekW
Minimum Rating 1230 ekW
Engine Specifications
Engine Model 3512B TA, V-12, 4-Stroke Water-Cooled Diesel
Bore 6.69 in
Stroke 7.48 in
Displacement 3573.55 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 - Minimum 216 in
Length - Maximum 216 in
Width - Minimum 90 in
Width - Maximum 90 in
Height - Minimum 95.3 in
Height - Maximum 95.3 in
Dry Weight - Genset (minimum) 24906 lb
Dry Weight - Genset (maximum) 25567 lb

Air Inlet System

  • Air cleaner; single element canister type with service indicator

Exhaust System

  • Exhaust flange outlet
  • Dry exhaust manifold
  • Flanged faced outlet(s)

Generator

  • IP23 Protection
  • Matched to the performance and output characteristics of Cat engines

Power Termination

  • Busbar

Control Panel

  • Cat ECS Genset controller

Control System

  • Alarm acknowledge
  • kW-hr (total)
  • Lamp test
  • Over/under voltage (27 / 59)
  • Digital indication for:
  • DC volts
  • PLC functionality
  • Speed adjust
  • 4 Programmable relay outputs (Form A)?
  • Text alarm/event descriptions
  • Warning/shutdown with common LED indication of shutdowns for:
  • Engine cycle crank
  • Emergency stop
  • Auto/start/stop control
  • RPM
  • Reverse power (kW) (32)
  • True RMS AC metering, 3-phase, +/-2% accuracy
  • Accessory module data link
  • Low coolant level
  • kVAr-hr (total)
  • kVAr (per phase, average & percent)
  • 1 Programmable relay outputs (Form C)
  • Over/under frequency (81 o/u)
  • Low oil pressure
  • Amps (per phase & average)
  • Failure to start (overcrank)
  • Cat ECS 100
  • Controls:
  • High coolant temperature
  • Communications
  • Number of I/O varies on options selected
  • 24 Volt DC operation
  • Engine cool-down timer
  • Low coolant temperature
  • Generator phase sequence
  • Frequency (Hz)
  • Volts (L-L & L-N)
  • Reverse reactive power (kVAr) (32RV)
  • Oil pressure (psi, kPa or bar)
  • Customizable screens
  • 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
  • Load histogram feature
  • 1 Programmable digital outputs
  • Customer data link (Modbus RTU)
  • Overspeed
  • Environmental sealed front face
  • Coolant temperature
  • kW (per phase, average & percent)
  • Programmable protective relaying functions:
  • kVA (per phase, average & percent)
  • Power factor (per phase & average)
  • Emergency stop pushbutton
  • Generator mounted - rear facing
  • Cat connect
  • Overcurrent (50 / 51)

Cooling System

  • Package mounted radiator
  • Radiator fan and fan drive
  • Fan and belt guards
  • Coolant drain line with valve
  • Caterpillar extended life coolant (Not included with packages without radiator, installed SF44CTS
  • Coolant level sensors (Not included with packages without radiator)
  • SCAC

Fuel System

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

Generators and Attachments

  • Low voltage:
  • Random wound
  • 6 Leads
  • NEMA standard hole pattern
  • High voltage
  • Busbar connections, right side extension box, bottom cable entry
  • NEMA Class H insulation system, Class H temperature rise at 40C ambient (125C prime / 150C standby)
  • Permanent magnet excitation (PMG)
  • NEMA standard hole pattern
  • Medium voltage:
  • Busbar connections, top center mounted, top cable entry
  • NEMA Class H insulation system, Class H temperature rise at 40C ambient (125C prime / 150C standby)
  • Winding temperature detectors
  • Form wound
  • 3 Phase brushless, Salient pole
  • Class H insulation, Class F temperature rise at 40C ambient (105C prime / 130C standby)
  • Internal excitation (IE)

Governing System

  • ADEM III

Literature

  • Parts book

Lube System

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

Mounting System

  • Rubber anti-vibration mounts - shipped loose

Starting / Charging System

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

General

  • Paint - Caterpillar yellow with high gloss black rails & radiator
  • Flywheel and Flywheel housing-SAE No. 00
  • Right hand servicing
  • SAE standard rotation
  • Electric Power Ratings Guide
    application/pdf
    Download ↓
  • 3512B, 60 Hz, 1400 ekW Standby, 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