Home / Power Systems / Diesel Generator Sets / 3512B Diesel Generator Set

3512B Diesel Generator Set

Request a Quote

Overview

Caterpillar is leading the power generation marketplace with Power Solutions engineered to deliver unmatched flexibility, expandability, reliability, and cost-effectiveness.

Download Product Brochure Print

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

Cat ECS 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

UL 2200 Listed
CSA
IBC seismic certification
OSHPD pre-approval

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

Worldwide 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

Engine Specifications

Bore: 6.69in
Displacement (HD): 3573.55in³
Stroke (HD): 8.46in
Aspiration: TA
Fuel System: Electronic Unit Injection
Engine Model: 3512B TA, V-12, 4-Stroke Water-Cooled Diesel
Displacement - Std: 3161.03in³
Stroke - Standard: 7.48in
Compression Ratio: 14.0:1 Std 15.5:1 HD
Governor Type: ADEM™ A3
Aspiration: TA
Fuel System: Electronic Unit Injection
Bore: 6.69in
Displacement - HD: 3573.55in³
Stroke - HD: 8.46in
Stroke: 7.48in
Displacement: 3573.55in³

Generator Set Specifications

Minimum Rating: 1230 ekW
Maximum Rating: 1500 ekW
Voltage: 380 to 13800 Volts
Frequency: 60 Hz
Speed: 1800 rpm
Emissions/Fuel Strategy: Low Fuel, Low Emissions
Duty Cycle: Standby, Mission Critical, Prime, Continuous
Standby Rating: 1500/1400 ekW
Prime Power Rating: 1360/1275 ekW

Generator Set Dimensions

Height - Maximum: 93.2in
Length - Maximum: 221.9in
Width - Maximum: 90in
Dry Weight - Genset (minimum): 24430lb
Dry Weight - Genset (maximum): 25090lb

Standard/Optional Features

Standard Equipment:

Air Inlet System
- Air cleaner; single element canister type with service indicator
Exhaust System
- Exhaust flange outlet
- Dry exhaust manifold
- Flanged faced outlet(s)
Generator
- IP23 Protection
- Matched to the performance and output characteristics of Cat engines
Power Termination
- Busbar
Control Panel
- Cat ECS Genset controller
Control System
- Alarm acknowledge
- kW-hr (total)
- Lamp test
- Over/under voltage (27 / 59)
- Digital indication for:
- DC volts
- PLC functionality
- Speed adjust
- 4 Programmable relay outputs (Form A)?
- Text alarm/event descriptions
- Warning/shutdown with common LED indication of shutdowns for:
- Engine cycle crank
- Emergency stop
- Auto/start/stop control
- RPM
- Reverse power (kW) (32)
- True RMS AC metering, 3-phase, +/-2% accuracy
- Accessory module data link
- Low coolant level
- kVAr-hr (total)
- kVAr (per phase, average & percent)
- 1 Programmable relay outputs (Form C)
- Over/under frequency (81 o/u)
- Low oil pressure
- Amps (per phase & average)
- Failure to start (overcrank)
- Cat ECS 100
- Controls:
- High coolant temperature
- Communications
- Number of I/O varies on options selected
- 24 Volt DC operation
- Engine cool-down timer
- Low coolant temperature
- Generator phase sequence
- Frequency (Hz)
- Volts (L-L & L-N)
- Reverse reactive power (kVAr) (32RV)
- Oil pressure (psi, kPa or bar)
- Customizable screens
- 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
- Load histogram feature
- 1 Programmable digital outputs
- Customer data link (Modbus RTU)
- Overspeed
- Environmental sealed front face
- Coolant temperature
- kW (per phase, average & percent)
- Programmable protective relaying functions:
- kVA (per phase, average & percent)
- Power factor (per phase & average)
- Emergency stop pushbutton
- Generator mounted - rear facing
- Cat connect
- Overcurrent (50 / 51)
Cooling System
- Package mounted radiator
- Radiator fan and fan drive
- Fan and belt guards
- Coolant drain line with valve
- Caterpillar extended life coolant (Not included with packages without radiator, installed SF44CTS
- Coolant level sensors (Not included with packages without radiator)
- SCAC
Fuel System
- Primary fuel filter with integral water separator
- Secondary fuel filters
- Flexible fuel lines - shipped loose
- Fuel priming pump
- Fuel cooler; not included with packages without radiator
Generators And Attachments
- Low voltage:
- Random wound
- 6 Leads
- NEMA standard hole pattern
- High voltage
- Busbar connections, right side extension box, bottom cable entry
- NEMA Class H insulation system, Class H temperature rise at 40C ambient (125C prime / 150C standby)
- Permanent magnet excitation (PMG)
- NEMA standard hole pattern
- Medium voltage:
- Busbar connections, top center mounted, top cable entry
- NEMA Class H insulation system, Class H temperature rise at 40C ambient (125C prime / 150C standby)
- Winding temperature detectors
- Form wound
- 3 Phase brushless, Salient pole
- Class H insulation, Class F temperature rise at 40C ambient (105C prime / 130C standby)
- Internal excitation (IE)
Governing System
- ADEM III
Literature
- Parts book
Lube System
- Lubricating oil
- Gear type lube oil pump
- Oil drain lines and valve
- Fumes disposal
- Integral lube Oil cooler
- Oil filter, filler and dipstick
Mounting System
- Rubber anti-vibration mounts - shipped loose
Starting / Charging System
- Battery disconnect switch
- Battery and battery rack w/cables
- 45 Amp Charging alternator
- 24 Volt electric starting motor
General
- Paint - Caterpillar yellow with high gloss black rails & radiator
- Flywheel and Flywheel housing-SAE No. 00
- Right hand servicing
- SAE standard rotation

Optional Equipment:

Control Panels
- Remote monitoring software
- Digital I/O module
- EMCP 4.4
- Load share module
- Generator temperature monitoring & protection
Exhaust System
- Exhaust mufflers
- Flanges
- Elbows
- Flange and exhaust expanders
- Mufflers
- Y Adapters
- Flexible fittings
Generator
- Oversize and premium generators
- Permanent magnet excitation (PMG)
- Internal excitation (IE)
- Anti-condensation heater
Air Inlet System
- Heavy duty air cleaner
- Single element filter
Power Termination
- Circuit breakers, UL listed
- Circuit breakers, IEC compliant
Cooling System
- Standard installed radiators
- Optional installed radicators
- Coolant
- Water level switch gauges
Fuel System
- Primary fuel filter
General
- UL 2200 package
- EEC Declaration of Conformity
- Seismic Certification per applicable building codes: IBC 2000, IBC 2003, IBC 2006, IBC 2009, CBC 2007
- CSA Certification
- Enclosures: Sound attenuated, weather protective
- Automatic transfer switches (ATS)
- Integral & sub-base fuel tanks
- The following options are based on regional and product configuration:
- US aid emblem
- Integral & sub-base UL listed dual wall fuel tanks
- EU Certificate of Conformance (CE)
Generators And Attachments
- 1400, 1600, 2700 Frames
- Generator conversion from IE to PM
- Space heater
- RW, IE, 6 Leads, Pitch 0.6667
- Low voltage: 380,440 / 480 Volts, 3 Phase, 1800 rpm
- Differential current transformers (DCT) 15 kV class
- Generator air cleaner
- Differential current transformers (DCT) 8.7 kV class
Mounting
- IBC isolators
- Rubber anti-vibration mounts
- Spring type vibration isolators
Starting/charging
- Air starting motor with control and silencer
- Heavy duty starting system
- Charging alternator
- Oversize batteries
- Battery chargers
- Jacket water heater
Instrumentation
- Wiring GP W/O cyl sensors
- Pyrometer and thermocouples
Lube System
- Lubrication oil in standard sump
- Oil drains
- Prelube pumps
- Oil level regulator
Crankcase Protection
- Explosion relief valves
- No crankcase explosion relief valves
- Crankcase ventilation system
- No explosion relief valves
Mounting System
- IBC vibration isolators
- Puck style low efficiency isolators
- Spring type vibration isolators
Power Connections
- 2000, 2500 Amp, 4 Pole, IECrated Circuit breakers
- Cable entry - right side
- Grounding groups
- Left side power connections
- 1600 ,2000, 2500, 3000, 4000 Amp, 3 Pole, UL-100% rated Circuit breakers
- 2000, 2500, 3200 Amp, 3 Pole, IEC rated Circuit breakers
- Rear power connections
- Neutral ground connections
- 6 Leads, 6 terminal option
- Right side power connections
- Center post buss bar
Special Tests / Reports
- Generator test report
- PGS Test report @ 0.8 power factor
- Standard engine test charge
- CSA Certification
- Torsional vibration analysis
- Generator fuel consumption test
- PGS Test report @ 1.0 power factor
- IBC seismic Certification
- Fuel consumption test
Starting / Charging System
- Air pressure regulator
- Batteries, racks and cables:
- Air starting motor
- 35 Amp Battery charger
- 24 Volt battery set - Dry
- Starter cover
- 10 Amp Battery charger
- Engine barring device
- Jacket water heaters
- Electric starting motors

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

See how 3512B (60 Hz) compares against frequently compared products

3512B (60 Hz) Diesel Generator Sets

Engine Model: 3512B TA, V-12, 4-Stroke Water-Cooled Diesel
Voltage: 380 to 13800 Volts
Maximum Rating: 1500 ekW

Selected Model

C1.1 (60 Hz) Diesel Generator Sets

Engine Model: C1.1, In-line 4, 4-cycle diesel
Voltage: 110 to 480 Volts
Maximum Rating: 8.8 ekW

View Full Specs

3512B Diesel Generator Set