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Overview

Producing reliable power from 1360 kVA to 1750 kVA at 50 Hz, our 3512B diesel generator sets are made to meet your mission critical, continuous, standby and prime applications — and 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 Configurations

Units:
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™3 Adem™3 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

Generator Set Specifications

Minimum Rating 1320 kVA 1320 kVA Less
Maximum Rating 1875 kVA 1875 kVA Less
Voltage 220 to 13800 Volts 220 to 13800 Volts Less
Frequency 50 Hz 50 Hz Less
Speed 1500 RPM 1500 RPM Less
Height - Maximum 93.2 in 2367.0 mm Less
Length - Maximum 221.9 in 5637.0 mm Less
Width - Maximum 90.0 in 2286.0 mm Less

3512B (50 Hz) Standard Equipment

Air Inlet System
  • Aingle element canister type air cleaner with service indicator

Control Panel
  • EMCP 4.2
  • Emergency stop button
  • 24 Volt DC operation
  • Environmental sealed front face
  • Text alarm / event descriptions
  • Generator mounted - rear facing
  • Controls:
  • 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 (psi, kPa or bar)
  • Coolant temperature
  • Volts (L-L & L-N)
  • Frequency (Hz)
  • Amps (per phase & average)
  • Power Factor (per phase & average)
  • kW (per phase, average & percent)
  • kVA (per phase, average & percent)
  • kVAr (per phase, average & percent)
  • kW-hr (total)
  • kVAr-hr (total)
  • Warning / shutdown with common LED indication of shutdowns for:
  • Low oil pressure
  • High coolant temperature
  • Overspeed
  • Emergency stop
  • Failure to start (overcrank)
  • Low coolant temperature
  • Low coolant level
  • Programmable protective relaying functions:
  • Generator phase sequence
  • Over / under voltage (27 / 59)
  • Over / under frequency (81 o/u)
  • Reverse power (kW) (32)
  • Reverse reactive power (kVAr) (32RV)
  • Overcurrent (50 / 51)
  • Communications
  • Customer data link (Modbus RTU)
  • Accessory module data link
  • Serial annunciator module data link
  • 6 Programmable digital inputs
  • 4 Programmable relay outputs (Form A)
  • 2 Programmable relay outputs (Form C)
  • 2 Programmable digital outputs

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

Exhaust System

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

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

Governing System
  • Woodward 2301A isochronous governor

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
  • Rubber anti-vibration mounts (shipped loose)

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
  • Flywheel and Flywheel housing-SAE No. 00
  • SAE standard rotation

3512B (50 Hz) Optional Equipment

Air Inlet System
  • Dual element air cleaners
  • Remote air inlet adaptors
  • Air Inlet protection

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

Control Panels
  • EMCP 4.3, EMCP 4.4
  • Customer connection mounting locations
  • Annunciator modules
  • Governors
  • Mounting group - External box clips
  • Auxiliary boxes
  • Customer interface options
  • Generator temperature monitoring
  • Remote speed adjust
  • Vandle proof panel door
  • Local PC monitoring
  • Ground (Automatically selected)

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

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

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

Fuel System
  • Primary fuel filter

Generators and Attachments
  • 1500 RPM, 380/400/415volts @ 50 Hz, 3 phase, random wound, internal excitation, No. of leads = 6, pitch= 0.6667
  • 1500 RPM, 380/400/415volts @ 50 Hz, 3 phase, random wound, permanent magnet, No. of leads = 6, pitch= 0.6667
  • 1500 RPM, 380/400/415volts @ 50 Hz, 3 phase, form wound, permanent magnet, No. of leads = 6, pitch= 0.6667
  • Generator conversion
  • Space heater

Instrumentation
  • Pyrometer and thermocouples

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

Mounting System
  • Spring-type vibration isolator
  • IBC vibration isolators

Protection System
  • Explosion relief valve

Special Tests / Reports
  • Neutral grounding connection
  • Neutral ground-LV
  • PGS test report @ 1.0 power factor
  • PGS test report @ 0.80 power factor
  • IBC seismic certifications

Starting / Charging System

General
  • Engine barring group

Design Criteria

The generator set accepts 100% rated load in one step per NFPA 110 and meets ISO 8528-5 transient response.

Cat Diesel Engine

  • Reliable, rugged, durable design
  • Field-proven in thousands of applications worldwide
  • Four-stroke-cycle diesel engine combines consistent performance and excellent fuel economy with minimum weight
  • Generator

  • Matched to the performance and output characteristics of Cat engines
  • Industry leading mechanical and electrical design
  • Industry leading motor starting capabilities
  • High Efficiency
  • Cat EMCP Control Panel

    The EMCP controller features the reliability and durability you have come to expect from your Cat equipment. EMCP4 is a scalable control platform designed to ensure reliable generator set operation, providing extensive information about power output and engine operation. EMCP4 systems can be further customized to meet your needs through programming and expansion modules.

    Single-Source Supplier

    Fully prototype tested with certified torsional vibration analysis available

    World Wide Product Support

    Cat dealers provide extensive post-sale support including maintenance and repair agreements. Cat dealers have over 1,800 dealer branch stores operating in 200 countries. The Caterpillar S•O•S℠ program cost effectively detects internal engine component condition, even the presence of unwanted fluids and combustion by-products

    UL 2200 / CSA - Optional

  • UL 2200 listed packages
  • CSA Certified
  • Certain restrictions may apply.
  • Consult with your Cat® Dealer.