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3512B Diesel Generator Set

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Overview

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.

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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 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

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

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

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

Certifications

EU Declaration of Conformity
EU Declaration of Incorporation
Eurasian Conformity (EAC)
Telecommunication Lab of China

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

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

Generator Set Specifications

Standby Rating: 1875/1750 kVA
Prime Power Rating: 1700/1600 kVA
Emissions/Fuel Strategy: Low Fuel , Low Emissions
Voltage: 400 to 415 Volts
Frequency: 50 Hz
Speed: 1500 rpm
Duty Cycle: Standby, Mission Critical, Prime, Continuous
Minimum Rating: 1600 kVA
Maximum Rating: 1875 kVA

Engine Specifications

Engine Model: 3512B TA, V-12, 4-Stroke Water-Cooled Diesel
Bore: 6.69in
Stroke: 7.48in
Stroke - HD: 8.46in
Displacement: 3161.03in³
Displacement - HD: 3576in³
Compression Ratio: 15.5:1 HD
Aspiration: TA
Fuel System: Electronic Unit Injection
Governor Type: ADEM™ A3

Generator Set Dimensions

Length - Minimum: 212.8in
Length - Maximum: 217.1in
Width - Minimum: 90in
Width - Maximum: 90in
Height - Minimum: 94.9in
Height - Maximum: 94.9in
Dry Weight - Genset (minimum): 25620lb
Dry Weight - Genset (maximum): 26530lb

Standard/Optional Features

Standard Equipment:

Control System
- EMCP 4.2B
- Emergency stop pushbutton
- Failure to start (overcrank)
- High coolant temperature
- 4 Programmable digital outputs
- Auto/start/stop control
- 4 Programmable digital inputs
- DC volts
- Engine cycle crank
- Low coolant level
- Speed adjust
- Low oil pressure
- Communications
- Frequency (Hz)
- Warnings/shutdown indicators
- Engine cool-down timer
- Operating hours
- Emergency stop
- Oil pressure
- Lamp test
- True RMS AC metering, 3-phase, +/-2% accuracy
- Digital indication for:
- Overspeed
- Alarm acknowledge
- RPM
- 24 Volt DC operation
- Amps (per phase & average)
- Coolant temperature
- Volts (L-L & L-N)
Governing System
- ADEM III
Cooling System
- SCAC
- Coolant drain line with valve
- Radiator fan and fan drive
- Fan and belt guards
- Coolant level sensors
- Caterpillar extended life coolant
Exhaust System
- 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
Generator System
- RFI suppression
- Min / max exciter
- 3 phase brushless, Salient pole
- Caterpillar's digital voltage regulator (CDVR)
- Class H temperature rise at 40C ambient
- Random wound
- Winding temperature detectors
- Internal excitation (IE)
- 3 Phase voltage sensing
- Busbar connections
- 6 Leads
- NEMA Class H insulation
Literature
- Parts book
- Operation & Maintenance Manual
Lube System
- Lubricating oil
- Gear type lube oil pump
- Fumes disposal
- Oil drain lines and valve
- Oil filter, filler and dipstick
- Integral lube Oil cooler
Mounting System
- Rails - Engine/generator/radiator mounting
General
- Flywheel and Flywheel housing-SAE
- Caterpillar yellow with high gloss black rails & radiator
- RH service
- SAE standard rotation

Optional Equipment:

Air Inlet System
- Dual element air cleaner
- Single element filter
- Heavy duty air cleaner
Exhaust
- Exhaust mufflers
Generator
- Internal excitation (IE)
- Oversize and premium generators
- Anti-condensation heater
- Permanent magnet excitation (PMG)
Control System
- EMCP voltage and current sensing groups
- CAN2 network equipment
- Annunciator modules (Local and remote)
- Customer interface options
- Load share module options (LV)
- EMCP 4.3, EMCP 4.4
- Annunciator network equipment
- Neutral to ground connection
- Generator temperature monitoring
- Remote annunciator module (Low voltage)
- Local annunciator modules (Low voltage)
- Cat connect: Ethernet telematics / Satellite telematics / Cell telematics
- Governors (MUI-Low voltage)
Power Termination
- Circuit breakers, IEC compliant
- Circuit breakers, UL listed
Cooling System
- Installed radiators
- Coolant
- Water level switch gauges
- Cooling system attachments
Mounting
- IBC isolators
- Rubber anti-vibration mounts
- Spring type vibration isolators
Starting/charging
- Jacket water heater
- Oversize batteries
- Battery chargers
- Charging alternator
- Heavy duty starting system
- Air starting motor with control and silencer
Exhaust System
- Flexible fittings
- Mufflers
- Y Adapters
- Elbows
- Flange and exhaust expanders
Factory Support
- Factory commissioning
Fuel System
- Secondary fuel filters
- Primary fuel filter
Generators And Attachments
- Internally excitation
- Permanent magnet excitation (PMG)
- RW
- 6 Leads
- Space heater kit
- 1400 and 1600 Frame
- Pitch 0.6667
- Low voltage generators 380, 400, 415 Volts 3 Phase, 1500 rpm
- Generator conversion kits - PM to IE / IE to PM
General
- EU Certificate of Conformance (CE)
- The following options are based on regional and product configuration:
- Seismic Certification per applicable building codes: IBC 2000, IBC 2003, IBC 2006, IBC 2009, CBC 2007
- UL 2200 package
Instrumentation
- Pyrometer and thermocouples
Lube System
- Lube oil in standard sump
- Standard sump oil pan
- Lube oil filters
- Drain GP oil pan
- Oil level regulator
- Prelube pump groups
Crankcase System
- Crankcase protection group
- Crankcase ventilation system
Mounting System
- Low efficiency isolators
- Low efficiency isolators puck
- Low isolators
- Spring type vibration isolators
Power Connections
- Low voltage - Power connection options
- Electrically operated circuit breakers
- Low voltage - Package mounted circuit breakers
- Low voltage - 1400 and 1600 Frame generators
Special Tests / Reports
- Custom generator TVA report
- PGS Test report @ 1.0 power factor
- Generator fuel consumption test
- Standard generator TVA report
- PGS Test report @ 0.8 power factor
- Generator test report
- Standard engine test charge
Starting / Charging System
- 20 Amp Battery charger
- 10 Amp Battery charger
- Electric starting motors
- Starter cover
- Batteries, racks and cables
- Jacket water heater wiring groups
- Jacket water heaters
- 35 Amp Battery charger
Extended Service Coverage
- Gold - 36,48, 60, 120 month coverage
- Cat branded commercial power system
- Silver - 36 ,48, 60, 120 month coverage
- Platinum - 24, 36, 48, 60, 120 month coverage

Take The Virtual Product Tour To Explore The Features And Benefits of the 3512B Diesel Generator Set

See how 3512B (50 Hz) with Upgradeable Package 1600-1875 kVA compares against frequently compared products

3512B (50 Hz) with Upgradeable Package 1600-1875 kVA Diesel Generator Sets

Engine Model: 3512B TA, V-12, 4-Stroke Water-Cooled Diesel
Voltage: 400 to 415 Volts
Maximum Rating: 1875 kVA

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Engine Model: C1.1, In-line 4 4-cycle diesel
Voltage: 110 to 415 Volts
Maximum Rating: 9.5 kVA

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Engine Model: C1.1, In-line 4, 4-cycle diesel
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