< Back

View Product Downloads
Yes, I would like to receive future marketing communications (such as email) from Caterpillar Inc., its affiliates and subsidiaries worldwide and the Caterpillar dealer network. Regardless of whether you decide to receive these marketing communications, Caterpillar will continue to send service/transactional messages, including those that have to do with any accounts that you may have with us.

Overview

Producing reliable power from 1230 ekW to 1500 ekW at 60 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 1230 ekW 1230 ekW Less
Maximum Rating 1500 ekW 1500 ekW Less
Voltage 220 to 13800 Volts 220 to 13800 Volts Less
Frequency 60 Hz 60 Hz Less
Speed 1800 RPM 1800 RPM Less
Height - Maximum 93.2 in 2367.2 mm Less
Length - Maximum 221.9 in 5637.5 mm Less
Width - Maximum 90.0 in 2286.0 mm Less

3512B (60 Hz) Standard Equipment

Air Inlet System
  • Air cleaner; single element canister type with service indicator

Control System
  • EMCP 4.2B
  • Emergency stop pushbutton
  • 24 Volt DC operation
  • Environmental sealed front face
  • Text alarm/event descriptions
  • Generator mounted - rear facing
  • Generator set packages include Caterpillar' s Voltage Regulator (IVR). IVR includes reactive droop capability, 3-phase voltage sensing, KVAR / PF modes, RFI suppression, min max exciter. Limiter and exciter diode monitor
  • Controls:
  • Speed adjust
  • Auto / start / stop control
  • Engine cool-down timer
  • Engine cycle crank
  • Alarm acknowledge
  • Lamp test
  • Load histogram feature
  • PLC functionality
  • Customizable screens
  • True RMS AC metering, 3-phase, +/-2% accuracy
  • Digital indication for:
  • RPM
  • DC volts
  • 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
  • Cat Connect
  • Customer data link (Modbus RTU)
  • Accessory module data link
  • Number of I/O varies on options selected
  • 4 Programmable relay outputs (Form A)
     
  • 1 Programmable relay outputs (Form C)
     
  • 1 Programmable digital outputs
     

Cooling System
  • SCAC
  • 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

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 - shipped loose
  • Fuel priming pump

Generators and Attachments
  • 3 Phase brushless, salient pole
     
  • 6 Leads
     
  • Low voltage:
     
  • Random wound
  • Internal excitation
  • NEMA Class H insulation, Class H temperature rise at 40C ambient (125C prime / 150C standby)
  • Bus bar connections, top center mounted, top cable entry
  • NEMA standard hole pattern
  • Medium voltage:
  • Form wound
  • Permanent magnet
  • Winding temperature detectors
  • NEMA Class H insulation, Class H temperature rise at 40C ambient (125C prime / 150C standby)
  • Bus bar connections, right side extension box, bottom cable entry
  • NEMA standard hole pattern
  • High Voltage
  • Class H insulation, Class F temperature rise at 40C ambient (105C prime / 130C standby)
     
  • NEMA standard hole pattern

Governing System
  • ADEM III

Literature
  • 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
  • Rubber anti-vibration mounts (shipped loose)

Starting / Charging System
  • 24 Volt electric starting motor
  • 45 Amp charging alternator
  • Battery and battery rack w/cables
  • Battery disconnect switch

General
  • Paint: Caterpillar yellow with high gloss black rails & radiator
  • Right hand servicing
  • Flywheel and Flywheel housing-SAE No. 00
  • SAE Standard Rotation

3512B (60 Hz) Optional Equipment

Control Panels
  • EMCP 4.3, EMCP 4.4

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

Cooling System
  • Standard installed radiators
  • Standard installed ATAAC radiators
  • Optional installed radicators
  • Optional installed ATAAC radiators
  • Water level switch gauges
  • Coolant

Exhaust System
  • Elbows
  • Flange and exhaust expanders
  • Flanges
  • Flexible fittings
  • Y Adapters
  • Mufflers

Fuel System
  • Primary fuel filter

General
  • US aid emblem

Generators and Attachments
  • Low Voltage: 380,440 / 480 Volts, 3 Phase, 1800 rpm
  • RW, IE, 6 leads, Pitch 0.6667
  • 1400, 1600, 2700 Frames
  • Space heater
  • Generator conversion from IE to PM
  • Differential current transformers (DCT) 15 kV class
  • Differential current transformers (DCT) 8.7 kV class
  • Generator air cleaner

Instrumentation
  • Pyrometer and thermocouples
  • Wiring GP W/O cyl sensors

Lube System
  • Lubrication oil in standard sump
  • Oil drains
  • Oil level regulator
  • Prelube pumps

Crankcase Protection
  • No explosion relief valves
  • No crankcase explosion relief valve
  • Explosion relief valve
  • Crankcase ventilation system

Mounting System
  • Puck style low efficiency isolators
  • Spring type vibration isolators
  • IBC vibration isolators

Power Connections
  • Grounding groups
  • Neutral ground connections
  • Center post buss bar
  • Right side power connections
  • Cable entry - Right side
  • Left side power connections
  • Rear power connections
  • 6 Leads, 6 terminal option
  • 1600 ,2000, 2500, 3000, 4000 Amp, 3 Pole, UL-100% rated circuit breakers
  • 2000, 2500,3200 Amp, 3 Pole, IEC Rated Circuit Breakers
  • 2000, 2500 Amp, 4 Pole, IEC Rated Circuit Breakers

Special Tests / Reports
  • CSA certification
  • IBC seismic certification
  • PGS test report @ 1.0 power factor
  • PGS test report @ 0.8 power factor
  • Standard engine test charge
  • Generator test report
  • Fuel consumption test
  • Generator fuel consumption test
  • Torsional vibration analysis

Starting / Charging System
  • Engine barring device
  • Batteries, racks and cables:
  • 24 Volt battery set - Dry
  • 10 Amp battery charger
  • 35 Amp battery charger
  • Electric starting motors
  • Air starting motor
  • Starter covers
  • Air pressure regulator
  • Jacket water heaters

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.