3512B (60 Hz) 1500 kW with Upgradeable Package

Bore: 6.69 in / 170 mm
Stroke: 7.48 in / 190 mm
Displacement: 51.8 in³ / 3161.03 l

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.
FAQS
Q. 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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Electric Power Ratings Guide 3512B, 60 Hz, 1400 ekW Standby/MC, 1275 ekW Prime, Low Fuel Consumption or Low Emissions Spec Sheet 3512B, 60 Hz, 1500 ekW Standby/MC, 1360 ekW Prime, 1230 ekW Cont., Low Fuel Consumption or Low Emissions Spec Sheet 3512B, 60 Hz, 1275 ekW, Prime-DCP, Low Fuel Consumption or Low Emissions Spec Sheet 3512B, 60 Hz, 1360 ekW, Prime-DCP, Low Fuel Consumption or Low Emissions Spec Sheet

Specifications
Equipment
Related Products

Generator Set Specifications
Standby Rating	1500/1400 kW
Prime Power Rating	1360/1275 kW
Emissions/Fuel Strategy	Low Fuel, Low Emissions
Voltage	380 to 480 Volts
Frequency	60 Hz
Speed	1800 rpm
Duty Cycle	Standby, Mission Critical, Prime, Continuous
Maximum Rating	1500 kW
Minimum Rating	1230 kW

Engine Specifications
Engine Model	3512B TA, V-12, 4-Stroke Water-Cooled Diesel
Bore	6.69 in / 170 mm
Stroke	7.48 in / 190 mm
Displacement	51.8 in³ / 3161.03 l
Compression Ratio	14.0:1 Std 15.5:1 HD
Aspiration	TA
Fuel System	Electronic Unit Injection
Governor Type	ADEM™ A3

Generator Set Dimensions
Length - Maximum	207.8 in / 5279 mm
Width - Maximum	90 in / 2286 mm
Height - Maximum	94.9 in / 2409 mm
Dry Weight - Genset (minimum)	24297 lb / 11021 kg
Dry Weight - Genset (maximum)	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
- 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
- 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)
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

Switchgear and Paralleling Controls

Generator switchgear controls, protects and isolates electrical equipment. Our paralleling switchgear is available in low-voltage, medium-voltage, and high-voltage configurations to automatically start, synchronize and parallel generators with the load.

Model	Configuration	Operating Temperature	Standard Widths
Cat Switchgear	IP4X	35 °C / 40 °C @ 1 hr, option for 0…50 °C (32…122 °F)	600 mm for ABB Emax2 E2 1600 - 2500A. 750 mm for ABB Emax2 E4 3200 - 4000A. 1200 mm for ABB Emax2 E6 4000 - 6300A.

3512B (60 Hz) 1500 kW with Upgradeable Package

Standard Equipment

Optional Equipment

Switchgear and Paralleling Controls

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