Diesel Generator Sets 3512 (50 Hz)

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Key Specs

Minimum Rating
1000 kVA
1000 kVA
Maximum Rating
1400 kVA
1400 kVA
Emissions/Fuel Strategy
Low Fuel Consumption
Low Fuel Consumption


1000 - 1400 kVA Diesel Generator Set

Producing reliable power from 1000 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 per cent rated load in one step. Generator sets offer a low fuel consumption system.


Over 4,000,000,000 Global Operating Hours

Proven performance in heavy-duty applications

Over 200,000 Shipped

Since 1981, leading the large engine market

Full Power up to 50°C Ambient

Provides full power even on hottest days of the year

Product Specifications for 3512 (50 Hz)

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Generator Set Specifications

Engine Specifications

Generator Set Dimensions

3512 (50 Hz) Standard Equipment

Air Inlet System

  • Air cleaner; single element canister type with service indicator

Control Panel

  • EMCP4.2B controls including: Emergency stop pushbutton
  • RPM
  • Engine cool-down timer
  • EMCP4.2B controller including:
  • 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, with winding temp detectors
  • Busbar connections, top center mounted, top cable entry
  • Internal Excitation
  • 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


  • Paint - Caterpillar Yellow with high gloss black rails & radiator
  • SAE Standard Rotation
  • RH Service
  • Flywheel and Flywheel housing - SAE No. 00

3512 (50 Hz) Optional Equipment

Air Inlet System

  • Remote air inlet adaptors
  • Air Inlet protection
  • Dual Element air cleaners

Circuit Breakers

  • EMAX circuit breakers
  • Center posts busbars
  • EMAX breakers connections
  • Breaker harnesses
  • 2000, 2500, 3200 and 4000 Amp, 4 pole, IEC rated circuit breakers
  • Controls packaging - Enclosures
  • Cable entry options
  • 2000, 2500, 3200 and 4000 Amp, 3 pole, IEC rated circuit breakers
  • Optional busbar power connections
  • Busbar connections

Control Panel

  • Auxiliary Boxes
  • Customer connection mounting locations
  • Ground (Automatically selected)
  • Vandle proof panel door
  • Customer Interface Options
  • Mounting Group - External Box Clips
  • Remote speed adjust
  • Generator Temperature Monitoring
  • Governors
  • Annunciator Modules
  • Local PC monitoring

Cooling System

  • Water level switch gauges
  • Heat exchangers
  • Optional radiator arrangements

European Certifications

  • EU declaration of conformity
  • Eurasian conformity (EAC) mark
  • European directive genset, DoI (Declaration of Incorporation)
  • European Union Certification

Exhaust System

  • Through-wall installation kit
  • Muffler mounting kits
  • Mufflers
  • Flexible fittings

Fuel System

  • Primary fuel filter

Generators and Attachments

  • 380 / 400 / 415 Volts @ 50 Hz, 3 phase, form wound, permanent magnet, No. of leads = 6, pitch= 0.6667
  • 380/400/415volts @ 50 Hz, 3 phase, random wound, permanent magnet, No. of leads = 6, pitch= 0.6667
  • Generator conversion
  • 380/400/415volts @ 50 Hz, 3 phase, random wound, internal excitation, No. of leads = 6, pitch= 0.6667
  • Space heater


  • Pyrometer and thermocouples

Lube System

  • Electric prelube pumps
  • Oil level Reg-1 shallow pan
  • Manual prelube sump pumps

Mounting System

  • Spring-type vibration isolator
  • IBC vibration isolators

Protection System

  • Explosion relief valve

Special Tests / Reports

  • Neutral grounding connection
  • IBC seismic certifications
  • Neutral ground-LV
  • PGS test report @ 1.0 power factor
  • PGS test report @ 0.8 power factor

Starting / Charging Systems

  • Ether starting aid
  • 24 Volt dual electric starting motor
  • 20 Amp battery charger
  • Oversize battery set
  • Jacket water heaters
  • 10 Amp battery chargers


  • Engine barring group

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