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3512 MUI Modular Rear Overhang Generator Set (Rear Right)
3512 MUI Modular Rear Overhang Generator Set (Rear Left)
3512 MUI Modular Rear Overhang Generator Set (Front Left)
3512 MUI Modular Rear Overhang Generator Set (Front Right)
Diesel generator sets

3512 (50 Hz)

Producing reliable power from 1150 to 1400 kVA at 50 Hz, our 3512 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 a low fuel consumption system.

  • Emissions/Fuel StrategyLow Fuel Consumption
  • Voltage380 to 415 Volts
  • Frequency50 Hz
  • Duty CycleStandby, Mission Critical, Prime, Continuous
  • Maximum Rating1400 kVA
  • Minimum Rating1000 kVA
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Generator Set Specifications
Standby Rating 1400/1250 kVA
Prime Power Rating 1275/1150 kVA
Emissions/Fuel Strategy Low Fuel Consumption
Voltage 380 to 415 Volts
Frequency 50 Hz
Speed 1500 rpm
Duty Cycle Standby, Mission Critical, Prime, Continuous
Maximum Rating 1400 kVA
Minimum Rating 1000 kVA
Engine Specifications
Engine Model 3512 TA, V-12, 4-Stroke Water-Cooled Diesel
Bore 6.69 in
Stroke 7.48 in
Displacement 3161.03 in³
Compression Ratio 13.5:1
Aspiration TA
Fuel System Direct Unit Injection
Governor Type Woodward
Generator Set Dimensions
Length - Minimum 218.8 in
Length - Maximum 222.9 in
Width - Minimum 77.8 in
Width - Maximum 78.1 in
Height - Minimum 90.7 in
Height - Maximum 93.2 in
Dry Weight - Genset (minimum) 22650 lb
Dry Weight - Genset (maximum) 23678 lb

Air Inlet System

  • Air cleaner; single element canister type with service indicator

Control Panel

  • EMCP4.2B controls includes: Emergency stop pushbutton
  • RPM
  • Engine cool-down timer
  • EMCP4.2B controller includes:
  • Accessory module data link
  • 4 programmable relay outputs (Form A)
  • Communications:
  • Volts (L-L & L-N)
  • Over/under frequency (81 o / u)
  • Text alarm/event descriptions
  • Auto/start/stop control
  • Speed adjust
  • kVA (per phase, average & percent)
  • Overcurrent (50 / 51)
  • Alarm acknowledge
  • Environmental sealed front face
  • 6 programmable digital inputs
  • Oil pressure (psi, kPa or bar)
  • Amps (per phase & average)
  • Generator phase sequence
  • 2 Programmable digital outputs
  • Low coolant temperature
  • Controls:
  • Serial annunciator module data link
  • Reverse power (kW) (32)
  • Lamp test
  • Coolant temperature
  • Engine cycle crank
  • kVAr-hr (total)
  • 2 Programmable relay outputs (Form C)
  • Generator mounted - rear facing
  • 24 Volt DC operation
  • kVAr (per phase, average & percent)
  • Warning/shutdown with common LED indication of shutdowns for:
  • kW (per phase, average & percent)
  • Reverse reactive power (kVAr) (32RV)
  • Programmable protective relaying functions:
  • Digital indication for:
  • High coolant temperature
  • Low oil pressure
  • Overspeed
  • Over/under voltage (27 / 59)
  • Customer data link (Modbus RTU)
  • DC volts
  • Operating hours
  • Low coolant level
  • kW-hr (total)
  • Frequency (Hz)
  • Emergency stop
  • Power factor (per phase & average)
  • Failure to start (overcrank)
  • True RMS AC metering, 3-phase, +/-2% accuracy

Cooling System

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

Exhaust System

  • Dry exhaust manifold
  • Flanged faced outlet(s)

Fuel System

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

Generators and Attachments

  • Generator set packages include: Regulator (CDVR)
  • 6 Lead
  • Min / max exciter limiter
  • LV
  • Reactive droop capability
  • Random wound
  • Exciter diode monitor
  • KVAR/PF modes
  • NEMA Class H insulation
  • 50 Hz models: IEC standard hole pattern
  • Caterpillar's digital voltage regulator (CDVR) includes:
  • Note: 1800 Frames are form wound, permanent magnet excitation (PMG), with winding temp detectors
  • Busbar connections, top center mounted, top cable entry
  • Internal excitation (IE)
  • Winding temperature detectors
  • Class H temperature rise at 40C ambient (125C prime/150C standby)
  • 3 Phase brushless, Salient pole
  • 3 Phase voltage sensing
  • RFI suppression

Governing System

  • Woodward 2301A isochronous governor

Lube System

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

Mounting System

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

Starting / Charging System

  • 24 Volt electric starting motor
  • Battery and battery rack w/cables
  • Battery disconnect switch

General

  • Paint - Caterpillar yellow with high gloss black rails & radiator
  • SAE standard rotation
  • RH service
  • Flywheel and Flywheel housing - SAE No. 00
  • Electric Power Ratings Guide
    application/pdf
    Download ↓
  • 3512, 50 Hz, 1400 kVA Standby/MC, 1275 kVA Prime, 1206 kVA Cont., Low Fuel Consumption Spec Sheet
    application/pdf
    Download ↓
  • 3512, 50 Hz, 1275 kVA, Prime-DCP, Low Fuel Consumption Spec Sheet
    application/pdf
    Download ↓
Need installed dimensions with enclosure and tank? See Model Configurations