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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 (50 Hz) 1600 – 1875 kVA

Producing reliable power from 1600 to 1875 kVA at 50 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 415 Volts
  • Frequency50 Hz
  • Duty CycleStandby, Mission Critical, Prime
  • Maximum Rating1875 kVA
  • Minimum Rating1600 kVA
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Generator Set Specifications
Standby Rating 1875/1750 kVA
Prime Power Rating 1700/1600 kVA
Emissions/Fuel Strategy Low Fuel, Low Emissions
Voltage 380 to 415 Volts
Frequency 50 Hz
Speed 1500 rpm
Duty Cycle Standby, Mission Critical, Prime
Maximum Rating 1875 kVA
Minimum Rating 1600 kVA
Engine Specifications
Engine Model 3512B TA, V-12, 4-Stroke Water-Cooled Diesel
Bore 6.69 in
Stroke 8.46 in
Displacement 3576 in³
Displacement - HD 3576 in³
Compression Ratio 15.5:1 HD
Aspiration TA
Fuel System Electronic Unit Injection
Governor Type ADEM™ A3
Stroke - HD 8.46 in
Generator Set Dimensions
Length - Minimum 224.8 in
Length - Maximum 224.8 in
Width - Minimum 90 in
Width - Maximum 90 in
Height - Minimum 95.3 in
Height - Maximum 95.3 in
Dry Weight - Genset (minimum) 27132 lb
Dry Weight - Genset (maximum) 27132 lb

Air Inlet System

  • Aingle element canister type air cleaner with service indicator

Air Inlet

  • Air cleaner

Cooling

  • Package mounted radiator (except C175)

Control Panel

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

Exhaust

  • Exhaust flange outlet

Fuel

  • Primary fuel filter with integral water separator
  • Secondary fuel filters
  • Fuel priming pump

Control System

  • Failure to start (overcrank)
  • Auto/start/stop control
  • Cat ECS 100
  • Lamp test
  • Emergency stop pushbutton
  • 4 programmable digital inputs
  • Volts (L-L & L-N)
  • Low coolant level
  • Overspeed
  • frequency (Hz)
  • Engine cycle crank
  • DC volts
  • Coolant temperature
  • Alarm acknowledge
  • True RMS AC metering, 3-phase, +/-2% accuracy
  • Communications
  • 24 Volt DC operation
  • Engine cool-down timer
  • RPM
  • Warnings/shutdown indicators
  • Digital indication for:
  • Oil pressure
  • Low oil pressure
  • Amps (per phase & average)
  • Speed adjust
  • Emergency stop
  • 4 programmable digital outputs
  • Operating hours
  • High coolant temperature

Generator

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

Power Termination

  • Busbar

Generator System

  • Internal excitation (IE)
  • NEMA Class H insulation
  • Caterpillar's digital voltage regulator (CDVR)
  • Class H temperature rise at 40C ambient
  • 3-phase voltage sensing
  • Busbar connections
  • min/max exciter
  • Random wound
  • 3 phase brushless, Salient pole
  • RFI suppression
  • Winding temperature detectors
  • 6 Lead

Literature

  • Operation & Maintenance Manual
  • Parts book

Cooling System

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

Exhaust System

  • Dry exhaust manifold
  • Flanged faced outlet(s)

Fuel System

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

Generators and Attachments

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

Governing System

  • Woodward 2301A isochronous governor

Lube System

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

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
  • RH service
  • SAE standard rotation
  • Flywheel and Flywheel housing-SAE No. 00
  • Electric Power Ratings Guide
    application/pdf
    Download ↓
  • 3512B, 50 Hz, 1750 kVA Standby/MC, 1600 kVA Prime, Low Fuel Consumption or Low Emissions Spec Sheet
    application/pdf
    Download ↓
  • 3512B, 50 Hz, 1875 kVA Standby/MC, 1700 kVA Prime, 1500 kVA Cont., Low Fuel Consumption or Low Emissions Spec Sheet
    application/pdf
    Download ↓
  • 3512B, 50 Hz, 1600 kVA, Prime-DCP, Low Fuel Consumption or Low Emissions Spec Sheet
    application/pdf
    Download ↓
  • 3512B, 50 Hz, 1700 kVA, Prime-DCP, Low Fuel Consumption or Low Emissions Spec Sheet
    application/pdf
    Download ↓
Need installed dimensions with enclosure and tank? See Model Configurations