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3512C Generator Set

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Overview

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

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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

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: 3161.03in³
Stroke: 7.48in
Aspiration: TA
Fuel System: Electronic unit injection
Engine Model: 3512C ATAAC, V-12, 4-Stroke Water-Cooled Diesel
Compression Ratio: 14.7:1
Governor Type: ADEM™ A3
Aspiration: TA
Fuel System: Electronic unit injection
Bore: 6.69in
Displacement: 3161.03in³
Stroke: 7.48in

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: U.S. EPA Certified
Duty Cycle: Standby, Mission Critical, Prime, Continuous
Standby Rating: 1500 ekW
Prime Power Rating: 1360 ekW

Generator Set Dimensions

Height - Maximum: 110in
Length - Maximum: 248.6in
Width - Maximum: 89.8in
Dry Weight - Genset (maximum): 30790lb

Standard/Optional Features

Standard Equipment:

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

Optional Equipment:

Control Panels
- EMCP 4.4
Exhaust
- Exhaust mufflers
Air Inlet System
- Heavy duty air cleaner
- Single element filter
Generator
- Permanent magnet excitation (PMG)
- Oversize and premium generators
- Internal excitation (IE)
- Anti-condensation heater
Cooling System
- Coolant
- Standard installed ATAAC radiators
- Optional installed ATAAC radiators
- Optional installed radiators
- Water level switch gauges
- Standard installed radiators
Power Termination
- Circuit breakers, IEC compliant
- Circuit breakers, UL listed
Exhaust System
- Flanges
- Flange and exhaust expanders
- Y Adapters
- Flexible fittings
- Elbows
- Mufflers
Fuel System
- Primary fuel filter
General
- US aid emblem
Mounting
- IBC isolators
- Rubber anti-vibration mounts
- Spring type vibration isolators
Generators And Attachments
- Differential current transformers (DCT) 15 kV class
- RW, IE, 6 Leads, Pitch 0.6667
- Differential current transformers (DCT) 8.7 kV class
- 1400, 1600, 2700 Frames
- Space heater
- Generator air cleaner
- Generator conversion from IE to PM
- Low voltage: 380,440 / 480 Volts, 3 Phase, 1800 rpm
Starting/charging
- Jacket water heater
- Air starting motor with control and silencer
- Battery chargers
- Charging alternator
- Heavy duty starting system
- Oversize batteries
Instrumentation
- Wiring GP W/O cyl sensors
- Pyrometer and thermocouples
Lube System
- Prelube pumps
- Oil level regulator
- Oil drains
- Lubrication oil in standard sump
Crankcase Protection
- No explosion relief valves
- No crankcase explosion relief valves
- Explosion relief valves
- Crankcase ventilation system
Mounting System
- Puck style low efficiency isolators
- IBC vibration isolators
- Spring type vibration isolators
Power Connections
- Cable entry - right side
- Center post buss bar
- Rear power connections
- Right side power connections
- 2000, 2500, 3200 Amp, 3 Pole, IEC rated Circuit breakers
- 1600 ,2000, 2500, 3000, 4000 Amp, 3 Pole, UL-100% rated Circuit breakers
- Left side power connections
- Six lead, six terminal option
- 2000, 2500 Amp, 4 Pole, IEC rated Circuit breakers
- Neutral ground connections
- Grounding groups
Special Tests / Reports
- Standard engine test charge
- PGS Test report @ 1.0 power factor
- CSA Certification
- IBC seismic Certification
- Fuel consumption test
- Torsional vibration analysis
- Generator test report
- Generator fuel consumption test
- PGS Test report @ 0.8 power factor
Starting / Charging System
- 10 Amp Battery charger
- 24 Volt battery set - Dry
- Engine barring device
- 35 Amp Battery charger
- Air starting motor
- Air pressure regulator
- Batteries, racks and cables:
- Jacket water heaters
- Electric starting motors
- Starter cover

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

3512C (60 Hz) Diesel Generator Sets

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

Selected Model

C1.1 (50 Hz) Diesel Generator Sets

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

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3512C Generator Set