3512B Diesel Generator Set

Electric Power

Caterpillar is leading the power generation marketplace

with Power Solutions engineered to deliver unmatched
flexibility, expandability, reliability, and cost-effectiveness.

Specifications
Generator Set Specifications
Minimum Rating 1230 ekW (1320kVA)
Maximum Rating 1500 ekW (1875 kVA)
Voltage 220 to 13800 Volts
Frequency 50 or 60 Hz
Speed 1500 or 1800 RPM

Generator Set Configurations

Emissions/Fuel Strategy Low Fuel Consumption, Low Emissions

Engine Specifications
Engine Model 3512B TA, V-12, 4-Stroke Water-Cooled Diesel
Bore 170 mm 6.69 in
Displacement (Std) 51.8 L 3161.03 in3
Displacement (HD) 58.56 L 3573.55 in3
Stroke (Std) 190 mm 7.48 in
Stroke (HD) 215 mm 8.46 in
Compression Ratio 14.0:1 Std 15.5:1 HD
Aspiration TA
Governor Type Adem™3
Fuel System Electronic Unit Injection

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3512B Diesel Generator Set
Electric Power

Benefits And Features

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

Generator
• Matched to the performance and output characteristics of Cat engines
• Industry leading mechanical and electrical design
• Industry leading motor starting capabilities
• High Efficiency

Cat EMCP Control Panel

The EMCP controller features the reliability and durability you have come to expect from your Cat equipment.
EMCP4 is a scalable control platform designed to ensure reliable generator set operation, providing extensive
information about power output and engine operation. EMCP4 systems can be further customized to meet your
needs through programming and expansion modules.

Design Criteria
The generator set accepts 100% rated load in one step per NFPA 110 and meets ISO 8528-5 transient
response.

UL 2200 / CSA - Optional

• UL 2200 listed packages
• CSA Certified
• Certain restrictions may apply.
• Consult with your Cat® Dealer.

Single-Source Supplier
Fully prototype tested with certified torsional vibration analysis available

World Wide Product Support

Cat Dealers provide extensive post sale support including maintenance and repair agreements. Cat dealers have
over 1,800 dealer branch stores operating in 200 countries. The Cat® SOSSM program cost effectively detects
internal engine component condition, even the presence of unwanted fluids and combustion by-products.

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3512B Diesel Generator Set
Electric Power

Standard Equipment
Air Inlet
• Air Cleaner

Cooling
• Package mounted radiator (except C175)

Exhaust
• Exhaust flange outlet

Fuel
• Primary fuel filter with integral water separator
• Secondary fuel filter
• Fuel priming pump

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

Power Termination
• Bus Bar

Control Panel
• EMCP 4 Genset Controller

General
• Paint - Caterpillar Yellow except rails and radiators gloss black

Optional Equipment
Exhaust
• Exhaust mufflers

Generator
• Anti-condensation heater
• Internal excitation (IE)
• Permanent magnet excitation (PMG)
• Oversize and premium generators

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3512B Diesel Generator Set
Electric Power

Power Termination
• Circuit breakers, UL listed
• Circuit breakers, IEC compliant

Control Panels
• EMCP 4.2
• EMCP 4.3
• EMCP 4.4
• Generator temperature monitoring & protection
• Load share module
• Digital I/O module
• Remote monitoring software

Mounting
• Rubber anti-vibration mounts
• Spring-type vibration isolator
• IBC isolators

Starting/Charging
• Battery chargers
• Oversize batteries
• Jacket water heater
• Heavy-duty starting system
• Charging alternator
• Air starting motor with control and silencer

General
• The following options are based on regional and product configuration:
• Seismic Certification per applicable building codes: IBC 2000, IBC 2003, IBC 2006, IBC 2009, CBC 2007
• UL 2200 package
• EU Certificate of Conformance (CE)
• CSA Certification
• EEC Declaration of Conformity
• Enclosures: sound attenuated, weather protective
• Automatic transfer switches (ATS)
• Integral & sub-base fuel tanks
• Integral & sub-base UL listed dual wall fuel tanks

The International System of Units (SI) is used in this publication. CAT, CATERPILLAR, their
respective logos, ADEM, EUI, S•O•S, "Caterpillar Yellow" and the "Power Edge" trade dress, as well
as corporate and product identity used herein, are trademarks of Caterpillar and may not be used
without permission.

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ELECTRIC POWER - Technical Spec Sheet
STANDARD

3512B
1360 ekW/ 1700 kVA/ 50 Hz/ 1500 rpm/ 400 V/ 0.8 Power Factor

Rating Type: PRIME Fuel Strategy: LOW FUEL CONSUMPTION

3512B
1360 ekW/ 1700 kVA
50 Hz/ 1500 rpm/ 400 V

Image shown may not reflect actual configuration

Metric English

Package Performance
Genset Power Rating with Fan @ 0.8 Power Factor 1360 ekW
Genset Power Rating 1700 kVA
Aftercooler (Separate Circuit) 30.0 ° C 86.0 ° F

Fuel Consumption
100% Load with Fan 344.4 L/hr 91.0 gal/hr
75% Load with Fan 260.0 L/hr 68.7 gal/hr
50% Load with Fan 181.4 L/hr 47.9 gal/hr
25% Load with Fan 105.4 L/hr 27.8 gal/hr

Cooling System¹
Engine Coolant Capacity 156.8 L 41.4 gal

Inlet Air
Combustion Air Inlet Flow Rate 117.5 m³/min 4148.9 cfm
Max. Allowable Combustion Air Inlet Temp 47 ° C 117 ° F

Exhaust System
Exhaust Stack Gas Temperature 452.3 ° C 846.1 ° F
Exhaust Gas Flow Rate 296.5 m³/min 10469.4 cfm
Exhaust System Backpressure (Maximum Allowable) 6.7 kPa 27.0 in. water

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ELECTRIC POWER - Technical Spec Sheet
STANDARD

3512B
1360 ekW/ 1700 kVA/ 50 Hz/ 1500 rpm/ 400 V/ 0.8 Power Factor

Rating Type: PRIME Fuel Strategy: LOW FUEL CONSUMPTION

Heat Rejection
Heat Rejection to Jacket Water 488 kW 27752 Btu/min
Heat Rejection to Exhaust (Total) 1287 kW 73189 Btu/min
Heat Rejection to Aftercooler 320 kW 18197 Btu/min
Heat Rejection to Atmosphere from Engine 110 kW 6255 Btu/min
Heat Rejection to Atmosphere from Generator 61 kW 3475 Btu/min

Alternator²
Motor Starting Capability @ 30% Voltage Dip 4978 skVA
Current 2454 amps
Frame Size 1625
Excitation IE
Temperature Rise 105 ° C

Emissions (Nominal)³
NOx 2407.1 mg/Nm³ 4.9 g/hp-hr
CO 313.9 mg/Nm³ 0.6 g/hp-hr
HC 42.8 mg/Nm³ 0.1 g/hp-hr
PM 45.9 mg/Nm³ 0.1 g/hp-hr

DEFINITIONS AND CONDITIONS

1. For ambient and altitude capabilities consult your Cat dealer. Air flow restriction (system) is added to existing
restriction from factory.

2. UL 2200 Listed packages may have oversized generators with a different temperature rise and motor starting
characteristics. Generator temperature rise is based on a 40° C ambient per NEMA MG1-32.

3. Emissions data measurement procedures are consistent with those described in EPA CFR 40 Part 89, Subpart D &
E and ISO8178-1 for measuring HC, CO, PM, NOx. Data shown is based on steady state operating conditions of
77° F, 28.42 in HG and number 2 diesel fuel with 35° API and LHV of 18,390 btu/lb. The nominal emissions data
shown is subject to instrumentation, measurement, facility and engine to engine variations. Emissions data is based
on 100% load and thus cannot be used to compare to EPA regulations which use values based on a weighted cycle.

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ELECTRIC POWER - Technical Spec Sheet
STANDARD

3512B
1360 ekW/ 1700 kVA/ 50 Hz/ 1500 rpm/ 400 V/ 0.8 Power Factor

Rating Type: PRIME Fuel Strategy: LOW FUEL CONSUMPTION

Applicable Codes and Standards:

AS1359, CSA C22.2 No100-04, UL142,UL489, UL869, UL2200,
NFPA37, NFPA70, NFPA99, NFPA110, IBC, IEC60034-1, ISO3046, ISO8528,
NEMA MG1-22,NEMA MG1-33, 72/23/EEC, 98/37/EC, 2004/108/EC

Note: Codes may not be available in all model configurations. Please consult your local Cat Dealer representative for
availability.

PRIME:Output available with varying load for an unlimited time. Average power output is 70% of the prime power rating.
Typical peak demand is 100% of prime rated ekW with 10% overload capability for emergency use for a maximum of 1
hour in 12. Overload operation cannot exceed 25 hours per year.

Ratings are based on SAE J1349 standard conditions. These ratings also apply at ISO3046 standard conditions

Fuel Rates are based on fuel oil of 35º API [16º C (60º F)] gravity having an LHV of 42 780 kJ/kg (18,390 Btu/lb) when
used at 29º C (85º F) and weighing 838.9 g/liter (7.001 lbs/U.S. gal.). Additional ratings may be available for specific
customer requirements, contact your Cat representative for details. For information regarding Low Sulfur fuel and
Biodiesel capability, please consult your Cat dealer.

www.Cat-ElectricPower.com

Performance No.: DM8251-01

Feature Code: 512DE8Z
The International System of Units (SI) is used in this publication. CAT, CATERPILLAR, their respective
Generator Arrangement: 2523854 logos, ADEM, EUI, S•O•S, "Caterpillar Yellow" and the "Power Edge" trade dress, as well as corporate
and product identity used herein, are trademarks of Caterpillar and may not be used without permission.
Date: 06/09/2015
Source Country: U.K.

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