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.

THE RUNDOWN

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

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	6.69in
Stroke	7.48in
Displacement	51.8in³
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	207.8in
Width - Maximum	90in
Height - Maximum	94.9in
Dry Weight - Genset (minimum)	24297lb
Dry Weight - Genset (maximum)	24959lb

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)