Popular: Diesel Generators Natural Gas Gensets Switchgear Sizing Guide Compliance / NFPA 110 Spec Sheets Emergency Service
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) 1320 -1625 kVA

Producing reliable power from 1320 to 1625 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 Rating1625 kVA
  • Minimum Rating1320 kVA
Have questions about this product?
Request a Quote
800.768.4200
Generator Set Specifications
Standby Rating 1625/1600/1500 kVA
Prime Power Rating 1500/1360 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 1625 kVA
Minimum Rating 1320 kVA
Engine Specifications
Engine Model 3512B TA, V-12, 4-Stroke Water-Cooled Diesel
Bore 6.69 in
Stroke 7.48 in
Displacement 3161.03 in³
Compression Ratio 14.0:1
Aspiration TA
Fuel System Electronic Unit Injection
Governor Type ADEM™ A3
Generator Set Dimensions
Length - Minimum 216.0 in
Length - Maximum 216.1 in
Width - Minimum 90.0 in
Width - Maximum 90 in
Height - Minimum 95.3 in
Height - Maximum 95.3 in
Dry Weight - Genset (minimum) 25038 lb
Dry Weight - Genset (maximum) 25677 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

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

Exhaust

  • Exhaust flange outlet

Fuel

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

Control System

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

Generator

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

Power Termination

  • Busbar

Generator System

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

Literature

  • Parts book
  • Operation & Maintenance Manual

Cooling System

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

Exhaust System

  • Dry exhaust manifold
  • Flanged faced outlet(s)

Fuel System

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

Generators and Attachments

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

Governing System

  • Woodward 2301A isochronous governor

Lube System

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

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

General

  • SAE standard rotation
  • Flywheel and Flywheel housing-SAE No. 00
  • RH service
  • Paint - Caterpillar yellow with high gloss black rails & radiator
  • Electric Power Ratings Guide
    application/pdf
    Download ↓
  • 3512B, 50 Hz, 1500 kVA Standby/MC, 1360 kVA Prime, Low Fuel Consumption or Low Emissions Spec Sheet
    application/pdf
    Download ↓
  • 3512B, 50 Hz, 1600 kVA Standby/MC, 1500 kVA Prime, 1320 kVA Cont., Low Fuel Consumption or Low Emissions Spec Sheet
    application/pdf
    Download ↓
  • 3512B, 50 Hz, 1625 kVA Standby/MC, 1500 kVA Prime, 1320 kVA Cont., Low Fuel Consumption or Low Emissions Spec Sheet
    text/html
    Download ↓
  • 3512B 1500 kVA Prime-DCP, Low Fuel Consumption or Low Emissions Spec Sheet
    application/pdf
    Download ↓
  • 3512B 50 Hz 1360 kVA, Prime-DCP, Low Fuel Consumption or Low Emissions Spec Sheet
    application/pdf
    Download ↓
Need installed dimensions with enclosure and tank? See Model Configurations