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Producing reliable power from 1320 kVA to 1750 kVA at 50 Hz, our 3512B diesel generator sets are made to meet your mission critical, continuous, standby and prime applications — an d match your power standards. Each meet ISO 8528-5 transient response requirements and accept 100 percent rated load in one step. Our 3512B generator sets are designed for either low fuel consumption or low emissions. Our integrated control system, including ATS and switchgear keeps power supply consistent and keeps you connected to your fleet with on-site and remote monitoring options. Get management and diagnostics tools in one, with our EMCP 4 control panel options, all designed with a user-friendly interface. You have specific power needs and we have a broad range of accessories and bolt-on system expansion attachments to select from. Flexible packaging options work with your spatial restrictions and climate.

Generator Set Specifications

Minimum Rating 1320 kVA 1320 kVA Less
Maximum Rating 1750 kVA 1750 kVA Less
Voltage 400 to 415 Volts 400 to 415 Volts Less
Frequency 50 Hz 50 Hz Less
Speed 1500 RPM 1500 RPM Less
Duty Cycle Continuous, Prime, Standby, Mission Critical Continuous, Prime, Standby, Mission Critical Less

Generator Set Configurations

Emissions/Fuel Strategy Low Fuel Consumption, Low Emissions Low Fuel Consumption, Low Emissions Less

Engine Specifications

Engine Model 3512B TA, V-12, 4-Stroke Water-Cooled Diesel 3512B TA, V-12, 4-Stroke Water-Cooled Diesel Less
Compression Ratio 14.0:1 Std 15.5:1 HD 14.0:1 Std 15.5:1 HD Less
Aspiration TA TA Less
Governor Type ADEM™A3 ADEM™A3 Less
Fuel System Electronic Unit Injection Electronic Unit Injection Less
Bore 6.69 in 170.0 mm Less
Displacement - HD 3573.55 in³ 58.56 l Less
Displacement - Std 3161.03 in³ 51.8 l Less
Stroke - HD 8.46 in 215.0 mm Less
Stroke - Standard 7.48 in 190.0 mm Less
Air Inlet Single element canister style with service indicator Single element canister style with service indicator Less
Exhaust Flange Size 203.2 mm (8.0 in) 203.2 mm (8.0 in) Less

3512B (50 Hz) Standard Equipment

Control System
  • EMCP4.2
  • Emergency stop pushbutton
  • 24-volt DC operation
  • Speed adjust
  • Auto/start/stop control
  • Engine cool-down timer.
  • Engine cycle crank
  • Alarm acknowledge
  • Lamp test
  • True RMS AC metering, 3-phase, +/-2% accuracy
  • Digital indication for:
  • RPM
  • DC volts
  • Operating hours
  • Oil pressure
  • Coolant temperature
  • Volts (L-L & L-N)
  • frequency (Hz)
  • Amps (per phase & average)
  • Warnings / Shutdown indicators
  • Low oil pressure
  • High coolant temperature
  • Overspeed
  • Emergency stop
  • Failure to start (overcrank)
  • Low coolant level
  • Communications
  • 4 programmable digital inputs
  • 4 programmable digital outputs

Cooling System
  • SCAC
  • Radiator fan and fan drive
  • Fan and belt guards
  • Coolant drain line with valve
  • Coolant level sensors
  • Caterpillar Extended Life Coolant

Exhaust System
  • Dry Exhaust Manifold
  • Flanged faced outlet(s)

Fuel System
  • Secondary fuel filters.
  • Fuel cooler; not included with packages without radiator
  • Flexible fuel lines
  • Fuel priming pump

Generator System
  • 3 phase brushless, salient pole
  • 6 lead
  • Caterpillar's Digital Voltage Regulator (CDVR)
  • 3-phase voltage sensing
  • RFI suppression
  • min/max exciter
  • Random wound
  • Internal Excitation
  • Winding temperature detectors
  • NEMA Class H insulation
  • Class H temperature rise at 40C ambient
  • Bus bar connections

Governing System

  • English

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

Mounting System
  • Rails - engine/generator/radiator mounting

  • Caterpillar Yellow with high gloss black rails & radiator
  • RH Service
  • Flywheel and Flywheel housing-SAE
  • SAE Standard Rotation

3512B (50 Hz) Optional Equipment

Air Inlet System
  • Single element filter
  • Dual element air cleaner
  • Heavy duty air cleaner

Control System
  • EMCP 4.2, EMCP 4.3, EMCP 4.4
  • Governors (MUI-low voltage)
  • Load share module options (LV)
  • EMCP voltage and current sensing groups
  • Annunciator modules (Local and remote)
  • Local annunciator modules (Low voltage)
  • Remote annunciator modules (Low voltage)
  • Annunciator Network Equipment
  • Cat Connect: Ethernet telematics / Satellite telematics / Cell telematics
  • Customer Interface Options
  • Generator Temperature Monitoring
  • CAN2 Network Equipment
  • Neutral to Ground Connection

Cooling System
  • Installed radiators
  • Cooling system attachments
  • Water level switch gauges
  • Coolant

Exhaust System
  • Elbows
  • Flange and Exhaust Expanders
  • Flexible Fittings
  • Y Adapters
  • Mufflers

Factory Support
  • Factory commissioning

Fuel System
  • Secondary Fuel Filters
  • Primary Fuel Filter

Generators and Attachments
  • Low voltage generators 380, 400, 415 Volts at 50 Hz, 3 Phase, 1500 rpm
  • 6 Leads
  • Pitch 0.6667
  • 1400 and 1600 Frame
  • Permanent magnet
  • Internally excitation
  • RW
  • Space heater kit
  • Generator conversion kits - PM to IE / IE to PM

  • Pyrometer and Thermocouples

Lube System
  • Standard sump oil pan
  • Lube oil in standard sump
  • Drain GP oil pan
  • Lube oil filters
  • Oil level regulator
  • Prelube pump groups

Crankcase System
  • Crankcase protection group
  • Crankcase ventilation system

Mounting System
  • Low isolators
  • Low efficiency isolators puck
  • Low efficiency isolators
  • Spring type vibration isolator

Power Connections
  • Low Voltage - 1400 and 1600 Frame generators
  • Low Voltage - Power connection options
  • Low Voltage - Package mounted circuit breakers
  • Electrically operated circuit breakers

Special Tests / Reports
  • PGS test report @ 1.0 power factor
  • PGS test report @ 0.8 power factor
  • Generator test report
  • Standard generator TVA report
  • Custom generator TVA report
  • Generator fuel consumption test
  • Standard engine test charge

Starting / Charging System
  • 10 Amp battery charger
  • 20 Amp battery charger
  • 35 Amp battery charger
  • Electric starting motors
  • Starter covers
  • Jacket water heaters
  • Jacket water heater wiring groups
  • Batteries, racks and cables

Extended Service Coverage
  • Cat branded commercial power system
  • Silver - 36 ,48, 60, 120 month coverage
  • Gold - 36,48, 60, 120 month coverage

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