3512 Generator Set

3512 MUI Modular Rear Overhang Generator Set

Producing reliable power from 890 to 1250 ekW at 60 Hz, our 3512 diesel generator sets are made to meet your mission critical, continuous, standby and prime applications. We've designed each to ISO 8528-5 transient response requirements and to accept 100% rated load in one step. Generator sets offer a low fuel consumption system.

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

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
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	1250/1100 ekW
Prime Power Rating	1135/1000 ekW
Emissions/Fuel Strategy	Low Fuel Consumption
Voltage	380 to 13800 Volts
Frequency	60 Hz
Speed	1800 rpm
Duty Cycle	Standby, Mission Critical, Prime, Continuous
Maximum Rating	1250 ekW
Minimum Rating	890 ekW

Engine Specifications

Engine Model	3512 TA, V-12, 4-Stroke Water-Cooled Diesel
Bore	6.69in
Stroke	7.48in
Displacement	3161.03in³
Compression Ratio	13.5:1
Aspiration	TA
Fuel System	Direct Unit Injection
Governor Type	Woodward

Generator Set Dimensions

Length - Minimum	214.8in
Length - Maximum	219in
Width - Minimum	77.8in
Width - Maximum	78.1in
Height - Minimum	90.7in
Height - Maximum	93.2in
Dry Weight - Genset (minimum)	22210lb
Dry Weight - Genset (maximum)	23149lb

Standard Equipment

Air Inlet System

Air cleaner; single element canister type with service indicator

Air Inlet

Air cleaner

Cooling

Radiator fan and fan drive
JWAC.

Exhaust

Exhaust flange outlet
Dry exhaust manifold

Fuel

Secondary fuel filters
Primary fuel filter with integral water separator
Fuel cooler; not included with packages without radiator
Secondary fuel filters
Fuel priming pump

Generator

IP23 Protection
Matched to the performance and output characteristics of Cat engines

Power Termination

Busbar

Control Panel

Accessory module data link
Features include:
Over/under voltage (27 / 59)
Coolant temperature
Generator phase sequence
Serial annunciator module data link
Low coolant temperature
Low oil pressure
DC volts
Over/under voltage (27/59)
Auto/start/stop control
Exciter diode monitor
Failure to start (overcrank)
6 programmable digital inputs
Emergency stop
Generator mounted - rear facing
Programmable protective relaying functions:
Power factor (per phase & average)
Alarm acknowledge
DC volts
kVA (per phase, average & percent)
Overspeed
IVR includes:
RFI suppression
Emergency stop pushbutton
Package mounted radiator (except C175)
Overspeed
Emergency stop
kVAr (per phase, average & percent)
Environmental sealed front face
Customer data link (Modbus RTU)
Min / max exciter limiter
Speed adjust
Operating hours
True RMS AC metering, 3-phase, +/-2% accuracy
Reactive droop capability
Customizable screens
Volts (L-L & L-N)
PLC functionality
Digital indication for:
RPM
High coolant temperature
Digital indication for:
kW-hr (total)
Over/under frequency (81 o / u)
Low coolant temperature
24 Volt DC operation
kW-hr (total)
Oil pressure (psi, kPa or bar)
Warning/shutdown with common LED indication of shutdowns for:
kVAr-hr (total)
EMCP 4.2B
2 Programmable relay outputs (Form C)
kVAr-hr (total)
kW (per phase, average & percent)
kVAr (per phase, average & percent)
Engine cool-down timer
Over/under frequency (81 o/u)
Engine cool-down timer
True RMS AC metering, 3-phase, +/-2% accuracy
Low coolant level
Frequency (Hz)
Controls:
Generator phase sequence
High coolant temperature
Communications:
Reverse power (kW) (32)
Volts (L-L & L-N), frequency (Hz)
Alarm acknowledge
Environmental sealed front face
Controls:
Operating hours
Generator mounted - rear facing
Power factor (per phase & average)
kW (per phase, average & percent)
Programmable protective relaying functions:
Engine cycle crank
Reverse power (kW) (32)
24 Volt DC operation
Lamp test
Text alarm/event descriptions
Failure to start (overcrank)
Generator set packages include Caterpillar's voltage regulator (IVR)
Warning/shutdown with common LED indication of shutdowns for:
Text alarm/event descriptions
4 programmable relay outputs (Form A)
Lamp test
Load histogram feature
Coolant temperature
Auto/start/stop control
Overcurrent (50 / 51)
kVA (per phase, average & percent)
KVAR/PF modes
Engine cycle crank
3 Phase voltage sensing
2 Programmable digital outputs
Low oil pressure
Reverse reactive power (kVAr) (32RV)
EMCP 4 Genset controller
RPM
Oil pressure (psi, kPa or bar)
Amps (per phase & average)
Low coolant level
Amps (per phase & average)
EMCP4.2 controller includes: