3512B Diesel Generator Set

Overview
Bore
7 in
Displacement (HD)
3,574 in3
Stroke (HD)
8 in
  • Exterior View

The 3512B generator set has been developed for a wide range of applications, from emergency standby installations such as healthcare and datacenters to continuously powering remote installations. The packages can be optimized for performance that matters to you with either low emissions or low fuel consumption versions available. Backed by the worldwide network of Cat dealers ready to support your operation with technical support, service, parts, and warranty, Cat generator sets will provide the reliability and durability you expect.

Engine Specifications

Bore
7 in
Displacement (HD)
3,574 in3
Stroke (HD)
8 in
Aspiration
TA
Fuel System
Electronic Unit Injection
Engine Model
3512B TA, V-12, 4-Stroke Water-Cooled Diesel
Displacement - Std
3,161 in³
Stroke - Standard
7 in
Compression Ratio
14.0:1 Std 15.5:1 HD
Governor Type
ADEM™A3
Exhaust Flange Size
203.2 mm (8.0 in)
Air Inlet
Single element canister style with service indicator
Aspiration
TA
Fuel System
Electronic Unit Injection
Bore
7 in
Displacement - HD
3,574 in³
Stroke - HD
8 in
Air Inlet
Single element canister style with service indicator
Stroke
7 in
Displacement
3,162 in

Generator Set Specifications

Minimum Rating
1320 kVA
Maximum Rating
1750 kVA
Voltage
400 to 415 Volts
Frequency
50 Hz
Speed
1500 rpm
Duty Cycle
Standby, Mission Critical, Prime, Continuous
Emissions/Fuel Strategy
Low Fuel , Low Emissions
Duty Cycle
Continuous, Prime, Standby, Mission Critical

Generator Set Dimensions

Height - Maximum
95 in
Length - Maximum
217 in
Width - Maximum
90 in
Length - Minimum
213 in
Width - Minimum
90 in
Height - Minimum
95 in
Dry Weight - Genset (minimum)
25,620 lb
Dry Weight - Genset (maximum)
26,530 lb

Cat Generator Set Package

  • Cat generator set packages have been fully prototype tested
  • Accepts 100% block load in one step and meets NFPA 110 loading requirements
  • Conform to ISO 8528-5 steady state and transient response requirements
  • Cat generator set packages have been fully prototype tested
  • Accepts 100% block load in one step and meets NFPA 110 loading requirements
  • Conform to ISO 8528-5 steady state and transient response requirements

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
  • 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

SR5 Alternator

  • Superior motor starting capability minimizes need for oversizing alternator
  • Designed to match performance and output characteristics of Cat diesel engines
  • Robust Class H insulation
  • Superior motor starting capability minimizes need for oversizing alternator
  • Designed to match performance and output characteristics of Cat diesel engines
  • Robust Class H insulation

EMCP 4 Control Panel

  • User-friendly interface and navigation
  • Scalable system to meet a wide range of installation requirement
  • Expansion modules and site-specific programming for specific customer requirements
  • User-friendly interface and navigation
  • Scalable system to meet a wide range of installation requirement
  • Expansion modules and site-specific programming for specific customer requirements

Cooling System

  • Designed to operate in standard ambient temperatures up to 50°C (122°F)
  • Contact your Cat Dealer for specific ambient and altitude capabilities
  • Designed to operate in standard ambient temperatures up to 50°C (122°F)
  • Contact your Cat Dealer for specific ambient and altitude capabilities

Certifications

  • IBC Seismic Certification
  • EU Declaration of Conformity
  • EEC Declaration of Conformity (EAC)
  • IBC Seismic Certification
  • EU Declaration of Conformity
  • EEC Declaration of Conformity (EAC)

One Safe Source

  • Components used in the generator set are selected at the design stage to provide optimum package performance
  • The generator set is fully assembled at a Caterpillar facility following our quality guidelines
  • Each generator set package is tested before leaving the Caterpillar facility
  • Cat product support, including dealer service, parts and warranty covers the entire Cat power system
  • Components used in the generator set are selected at the design stage to provide optimum package performance
  • The generator set is fully assembled at a Caterpillar facility following our quality guidelines
  • Each generator set package is tested before leaving the Caterpillar facility
  • Cat product support, including dealer service, parts and warranty covers the entire Cat power system

World Wide Product Support

  • Cat dealers have over 1,800 dealer branch stores operating in 200 countries
  • Your local Cat dealer provides extensive post-sale support, including maintenance and repair agreements
  • Cat dealers have over 1,800 dealer branch stores operating in 200 countries
  • Your local Cat dealer provides extensive post-sale support, including maintenance and repair agreements
  • Control System
    • Coolant temperature
    • EMCP 4.2
    • Overspeed
    • Alarm acknowledge
    • Oil pressure
    • Low coolant level
    • DC volts
    • Engine cool-down timer.
    • Failure to start (overcrank)
    • Communications
    • frequency (Hz)
    • Lamp test
    • High coolant temperature
    • Engine cycle crank
    • Volts (L-L & L-N)
    • Auto / start / stop control
    • RPM
    • Operating hours
    • 4 Programmable digital outputs
    • Speed adjust
    • True RMS AC metering, 3-phase, +/-2% accuracy
    • Low oil pressure
    • 4 Programmable digital inputs
    • Emergency stop pushbutton
    • Digital indication for:
    • Amps (per phase & average)
    • 24 Volt DC operation
    • Warnings / Shutdown indicators
    • True RMS AC metering, 3-phase, +/-2% accuracy
    • Alarm acknowledge
    • Low oil pressure
    • Emergency stop pushbutton
    • Digital indication for:
    • High coolant temperature
    • Engine cycle crank
    • Warnings / Shutdown indicators
    • Operating hours
    • Lamp test
    • Emergency stop
    • Amps (per phase & average)
    • Auto/start/stop control
    • Communications
    • EMCP4.2
    • Low coolant level
    • Overspeed
    • Volts (L-L & L-N)
    • 24-volt DC operation
    • DC volts
    • 4 programmable digital inputs
    • 4 programmable digital outputs
    • Coolant temperature
    • Failure to start (overcrank)
    • Emergency stop
    • RPM
    • Oil pressure
    • Speed adjust
    • Engine cool-down timer.
    • frequency (Hz)
  • Governing System
    • ADEM III
    • ADEM III
  • Cooling System
    • SCAC
    • Coolant level sensors
    • Radiator fan and fan drive
    • Fan and belt guards
    • Caterpillar extended life coolant
    • Coolant drain line with valve
    • Caterpillar Extended Life Coolant
    • Fan and belt guards
    • SCAC
    • Coolant drain line with valve
    • Radiator fan and fan drive
    • Coolant level sensors
  • Exhaust System
    • Dry Exhaust Manifold
    • Flanged faced outlet(s)
    • Dry Exhaust Manifold
    • Flanged faced outlet(s)
  • Fuel System
    • Fuel cooler; not included with packages without radiator
    • Flexible fuel lines
    • Secondary fuel filters.
    • Fuel priming pump
    • Flexible fuel lines
    • Fuel cooler; not included with packages without radiator
    • Secondary fuel filters.
    • Fuel priming pump
  • Generator System
    • Internal Excitation
    • Bus bar connections
    • Random wound
    • 6 Leads
    • NEMA Class H insulation
    • Caterpillar's Digital Voltage Regulator (CDVR)
    • 3 Phase voltage sensing
    • Class H temperature rise at 40C ambient
    • 3 Phase brushless, salient pole
    • Min / max exciter
    • RFI suppression
    • Winding temperature detectors
    • Caterpillar's Digital Voltage Regulator (CDVR)
    • Bus bar connections
    • NEMA Class H insulation
    • RFI suppression
    • Random wound
    • Class H temperature rise at 40C ambient
    • Winding temperature detectors
    • 3 phase brushless, salient pole
    • 6 lead
    • min/max exciter
    • Internal Excitation
    • 3-phase voltage sensing
  • Literature
    • English
    • English
  • Lube System
    • Lubricating oil
    • Oil drain lines and valve
    • Gear type lube oil pump
    • Fumes disposal
    • Oil filter, filler and dipstick
    • Integral lube oil cooler
    • Oil filter, filler and dipstick
    • Integral lube oil cooler
    • Lubricating oil
    • Fumes disposal
    • Oil drain lines and valve
    • Gear type lube oil pump
  • Mounting System
    • Rails - engine / generator / radiator mounting
    • Rails - engine/generator/radiator mounting
  • General
    • Caterpillar yellow with high gloss black rails & radiator
    • Flywheel and flywheel housing-SAE
    • SAE standard rotation
    • RH service
    • Flywheel and Flywheel housing-SAE
    • RH Service
    • Caterpillar Yellow with high gloss black rails & radiator
    • SAE Standard Rotation
  • Exhaust
    • Exhaust mufflers
  • Air Inlet System
    • Single element filter
    • Dual element air cleaner
    • Heavy duty air cleaner
  • Generator
    • Internal excitation (IE)
    • Permanent magnet excitation (PMG)
    • Anti-condensation heater
    • Oversize and premium generators
  • Control System
    • Annunciator network equipment
    • EMCP 4.3, EMCP 4.4
    • Neutral to ground connection
    • Local annunciator modules (Low voltage)
    • Load share module options (LV)
    • EMCP voltage and current sensing groups
    • Customer interface options
    • Remote annunciator modules (Low voltage)
    • Governors (MUI-low voltage)
    • CAN2 network equipment
    • Cat Connect: Ethernet telematics / Satellite telematics / Cell telematics
    • Generator yemperature monitoring
    • Annunciator modules (Local and remote)
  • Power Termination
    • Circuit breakers, IEC compliant
    • Circuit breakers, UL listed
  • Cooling System
    • Installed radiators
    • Water level switch gauges
    • Coolant
    • Cooling system attachments
  • Control Panels
    • EMCP 4.3
    • EMCP 4.2
    • EMCP 4.4
  • Mounting
    • IBC isolators
    • Spring-type vibration isolator
    • Rubber anti-vibration mounts
  • Starting/charging
    • Battery chargers
    • Jacket water heater
    • Air starting motor with control and silencer
    • Heavy-duty starting system
    • Charging alternator
    • Oversize batteries
  • Exhaust System
    • Flange and exhaust expanders
    • Elbows
    • Flexible fittings
    • Mufflers
    • Y Adapters
  • Factory Support
    • Factory commissioning
  • Fuel System
    • Secondary fuel filters
    • Primary fuel filter
  • Generators And Attachments
    • Space heater kit
    • Pitch 0.6667
    • Internally excitation
    • Generator conversion kits - PM to IE / IE to PM
    • Permanent magnet
    • 1400 and 1600 Frame
    • RW
    • 6 Leads
    • Low voltage generators 380, 400, 415 Volts 3 Phase, 1500 rpm
  • General
    • UL 2200 package
    • Seismic Certification per applicable building codes: IBC 2000, IBC 2003, IBC 2006, IBC 2009, CBC 2007
    • EU Certificate of Conformance (CE)
    • The following options are based on regional and product configuration:
  • Instrumentation
    • Pyrometer and thermocouples
  • Lube System
    • Oil level regulator
    • Lube oil filters
    • Drain GP oil pan
    • Standard sump oil pan
    • Lube oil in standard sump
    • Prelube pump groups
  • Crankcase System
    • Crankcase protection group
    • Crankcase ventilation system
  • Mounting System
    • Spring type vibration isolator
    • Low isolators
    • Low efficiency isolators puck
    • Low efficiency isolators
  • Power Connections
    • Low voltage - Power connection options
    • Electrically operated circuit breakers
    • Low voltage - 1400 and 1600 Frame generators
    • Low voltage - Package mounted circuit breakers
  • Special Tests / Reports
    • Generator test report
    • PGS test report @ 0.8 power factor
    • PGS test report @ 1.0 power factor
    • Custom generator TVA report
    • Generator fuel consumption test
    • Standard generator TVA report
    • Standard engine test charge
  • Starting / Charging System
    • Starter covers
    • Electric starting motors
    • Jacket water heaters
    • Batteries, racks and cables
    • Jacket water heater wiring groups
    • 20 Amp battery charger
    • 10 Amp battery charger
    • 35 Amp battery charger
  • Extended Service Coverage
    • Gold - 36,48, 60, 120 month coverage
    • Platinum - 24, 36, 48, 60, 120 month coverage
    • Cat branded commercial power system
    • Silver - 36 ,48, 60, 120 month coverage
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