3512B Diesel Generator Set
Our industrial diesel generators produce reliable power from 1230 to 1500 kW at 60 Hz. The 3512B diesel gensets are made to provide continuous power solutions for your business operation as well as supply standby and emergency power. Diesel engines are parallelable and meet prime applications. We've designed each to ISO 8528-5 transient response requirements and to accept 100% rated load in one step. Cat® generators are available in low fuel consumption and low emissions configurations.FAQSQ. Can we burn HVO (hydrotreated vegetable oil) in this generator to help achieve our Sustainability goals?A. Yes, the 3512B can burn HVO to help reduce emissions.Q. Does the Cat generator meet 10 second starting requirements?A. Yes, with the appropriate configuration our generators are capable of 10 second starting to meet emergency needs or customer requirements.Q. Does this generator comply with ISO 8528 guidelines?A. Yes, the 3512B, like all of our generators, is tested in accordance with the load steps outlined in with ISO 8528, Part 5.Q. Is this generator noisy?A. We offer a number of options for sound attenuation including silencers and sound attenuated enclosures for many of our generators to reduce the dB(A) levels.Q. Where can I obtain replacement parts for a Cat generator?A. Replacement spares are available from Cat dealers in over 200 countries worldwide.
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Specifications
| Name | Type | Value | Unit Value (Imperial) | Unit Name | Unit Value (Metric) | Unit Name (Metric) |
|---|---|---|---|---|---|---|
| Standby Rating | text | 1500/1400 kW | ||||
| Prime Power Rating | text | 1360/1275 kW | ||||
| Emissions/Fuel Strategy | text | Low Fuel, Low Emissions |
Documents & Spec Sheets
Electric Power Ratings Guide
Download3512B, 60 Hz, 1400 ekW Standby/MC, 1275 ekW Prime, Low Fuel Consumption or Low Emissions Spec Sheet
Download3512B, 60 Hz, 1500 ekW Standby/MC, 1360 ekW Prime, 1230 ekW Cont., Low Fuel Consumption or Low Emissions Spec Sheet
Download3512B, 60 Hz, 1275 ekW, Prime-DCP, Low Fuel Consumption or Low Emissions Spec Sheet
Download3512B, 60 Hz, 1360 ekW, Prime-DCP, Low Fuel Consumption or Low Emissions Spec Sheet
DownloadFeatures & Benefits
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
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
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
Complete Specifications
Generator Set Specifications
| Name | Type | Value | Unit Value (Imperial) | Unit Name | Unit Value (Metric) | Unit Name (Metric) |
|---|---|---|---|---|---|---|
| Standby Rating | text | 1500/1400 kW | ||||
| Prime Power Rating | text | 1360/1275 kW | ||||
| Emissions/Fuel Strategy | text | Low Fuel, Low Emissions | ||||
| Voltage | text | 380 to 480 Volts | ||||
| Frequency | text | 60 Hz | ||||
| Speed | text | 1800 rpm | ||||
| Duty Cycle | text | Standby, Mission Critical, Prime, Continuous | ||||
| Maximum Rating | text | 1500 kW | ||||
| Minimum Rating | text | 1230 kW | ||||
| Engine Model | text | 3512B TA, V-12, 4-Stroke Water-Cooled Diesel | ||||
| Bore | measurement | 6.69 | in | 170 | mm | |
| Stroke | measurement | 7.48 | in | 190 | mm | |
| Displacement | measurement | 51.8 | in³ | 3161.03 | l | |
| Compression Ratio | text | 14.0:1 Std 15.5:1 HD | ||||
| Aspiration | text | TA | ||||
| Fuel System | text | Electronic Unit Injection | ||||
| Governor Type | text | ADEM™ A3 | ||||
| Length - Maximum | measurement | 207.8 | in | 5279 | mm | |
| Width - Maximum | measurement | 90 | in | 2286 | mm | |
| Height - Maximum | measurement | 94.9 | in | 2409 | mm | |
| Dry Weight - Genset (minimum) | measurement | 24297 | lb | 11021 | kg | |
| Dry Weight - Genset (maximum) | measurement | 24959 | lb | 11321 | kg |
Standard Equipment
Air Inlet System
- Air cleaner; single element canister type with service indicator
Control System
- True RMS AC metering, 3-phase, +/-2% accuracy
Control Panel
- Warning/shutdown with common LED indication of shutdowns for:
- Auto/start/stop control
- Controls:
- Failure to start (overcrank)
- Generator mounted - rear facing
- kVAr (per phase, average & percent)
- kVAr-hr (total)
- Reverse reactive power (kVAr) (32RV)
- Volts (L-L & L-N)
- Serial annunciator module data link
- 4 programmable relay outputs (Form A)
- Lamp test
- Operating hours
- Overcurrent (50/51)
- kW (per phase, average & percent)
- Communications:
- 6 programmable digital inputs
- RPM
- Engine cycle crank
- 2 Programmable relay outputs (Form C)
- IVR includes reactive droop capability, 3-phase voltage sensing
- High coolant temperature
- Digital indication for:
- Environmental sealed front face
- Power factor (per phase & average)
- Speed adjust
- Emergency stop pushbutton
- Limiter and exciter diode monitor
- Low oil pressure
- EMCP 4.2B
- Low coolant level
- 2 Programmable digital outputs
- KVAR/PF modes, RFI suppression, min/max exciter
- Oil pressure (psi, kPa or bar)
- Customer data link (Modbus RTU)
- True RMS AC metering, 3-phase, +/-2% accuracy
- Overspeed
- Frequency (Hz)
- Emergency stop
- Generator set packages include Caterpillar's voltage regulator (IVR)
- Reverse power (kW) (32)
- Low coolant temperature
- Generator phase sequence
- Programmable protective relaying functions:
- Over/under voltage (27/59)
- DC volts
- 24 Volt DC operation
- kVA (per phase, average & percent)
- Engine cool-down timer
- Coolant temperature
- kW-hr (total)
- Amps (per phase & average)
- Over/under frequency (81 o/u)
- Text alarm/event descriptions
- Accessory module data link
- Alarm acknowledge
Cooling System
- Caterpillar extended life coolant. (Not included with packages without radiator, installed SF44CTS, shipped loose radiators or heat exchangers)
- Fan and belt guards
- JWAC
- Coolant drain line with valve
- Coolant level sensors (Not included with packages without radiator)
Exhaust
- Dry exhaust manifold
- Flanged faced outlet(s)
Fuel System
- Fuel cooler; not included with packages without radiator
- Fuel priming pump
- Secondary fuel filters
- Flexible fuel lines - shipped loose
Generators and Attachments
- NEMA Class H insulation
- Winding temperature detectors
- Internal excitation (IE) or Permanent magnet excitation (PMG)
- LV
- 6 Lead
- 60 Hz models: NEMA standard hole pattern
- Class H temperature rise at 40C ambient (125C prime / 150C standby)
- 3 Phase brushless, Salient pole
- Busbar connections, top center mounted, top cable entry
- Random wound
Governing System
- Woodward 2301A isochronous governor
Lube System
- Oil drain lines and valve
- Lubricating oil
- Integral lube Oil cooler
- Fumes disposal
- Gear type lube oil pump
- Oil filter, filler and dipstick
Mounting System
- Rails - engine/generator/radiator mounting
- Rubber anti-vibration mounts - shipped loose
Starting / Charging System
- Battery disconnect switch
- Battery and battery rack w/cables
- 24-Volt electric starting motor
- 50 Amp Charging alternator
General
- SAE standard rotation
- Paint - Caterpillar yellow with high gloss black rails & radiator
- Flywheel and Flywheel housing-SAE No. 00
- RH service
Optional Equipment
Air Inlet System
- Air cleaner: Includes installed single element Cat filter and service indicator
- Dual element air filters
- Single stage air cleaners
Control Panels
- Cat connect (must choose one)
- RTD module - may select one
- Modbus monitoring of packages
- First local annunicator
- EMCP 4.3, EMCP 4.4
- CAN2 network equipment
- Remote custom annunciator
- Locale discrete I / O package
- Vandle proof panel door
Cooling System
- Optional radiator arrangements
- Water level gauge
- Coolant
Control System
- Generator temperature monitoring
Exhaust System
- Exhaust Y Adapters
- Exhaust elbows
- Mufflers
- Flexible fittings
- Exhaust flange and expanders
Generators and Attachments
- Space heater control
- Generator conversion
- Space heater
Instrumentation
- Pyrometer and thermocouples
Lube System
- Oil level regulator
- Prelube manual sump pump
- Electric prelube sump pump
- Lube oil
Special Tests / Reports
- PGS Test report @ 0.8 power factor
- Generator test report
- Standard generator TVA report
- PGS Test report @ 0.8 power factor
- Custom generator TVA report
- Torsional vibration analysis
- PGS Test report @ 1.0 power factor
- Standard engine test charge
- Generator test report
- Standard engine test charge
- PGS Test report @ 1.0 power factor
- Generator fuel consumption test
General
- Barring devices
Crankcase System
- Ventilation system
- Protection systems
Batteries and Battery Housing
- 24 Volt battery set - Dry
- Battery chargers - 10, 20 and 35 amp
Power Connection System
- EMCP voltage and current sensing groups
- Breaker power connections
- Center post busbars
Circuit breaker - LV Packages
- Right hand power connections
- Electronically operated circuit breakers
Mounting System
- Low efficiency isolators
- Spring type vibration isolators
- Spring type vibration isolators
- Low efficiency isolators puck
Power Connections
- Low voltage - Package mounted circuit breakers
- Low voltage - 1400 and 1600 Frame generators
- Electrically operated circuit breakers
- Low voltage - Power connection options
Starting / Charging System
- Jacket water heater wiring groups
- 35 Amp Battery charger
- 20 Amp Battery charger
- Jacket water heaters
- 10 Amp Battery charger
- Electric starting motors
- Starter cover
- Batteries, racks and cables
Starting / Charging Systems
- Electric starting motors
- Starter cover
- Jacket water heater
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