G3512K Gas Generator
Gas Generator Sets
Details
Continuous Rating
1530 ekW @ 1.0pf
Fuel Type
Natural Gas & Propane
Maximum Electrical Efficiency
45.3%
Overview
1502 - 1530 kW Gas Generator
From natural gas to biogas, coal mine gases, or hydrogen fuel blends to support combined heat and power (CHP), emergency power, and local grid support applications, Caterpillar has a wide range of reliable gas power solutions.
Benefits
Electrical Efficiency
Industry leading 45.3% electrical efficiency on a 1.5 MW package.
Start to Full Load Time
Faster start-to-full-load performance and improved transient response enable the G3512K to become available more quickly and adapt seamlessly to rapid load changes
Fuel Flexible
Multiple fuel options with natural gas and propane available now. Biogas, sewage and landfill gas, coal mine methane (CMM), and up to 25% hydrogen cofigurations coming in 2026
Features at a Glance
- Cat G3520K Gas Engine
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- Robust high speed block design provides prolonged life and lower owning operationg costs
- Designed for maximum performance on low pressure pipeline natural gas
- Simple open chamber combustion system for reliability and fuel flexibility
- Leading edge technology in ignition system and air/fuel ratio control for lower emission and engine efficiency
- One electronic control module handles all engine functions: ignition, governing, air/fuel ratio control and engine protection
- SR5 Generator
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- Designed to match performance and output characteristics of Caterpillar gas engines
- Industry leading mechanical and electrical design
- High efficiency
- Cat Energy Control System (Cat ECS)
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- A cost effective but powerful system
- Modern color touch screen
- Meets UL6200 controls and UL2300 3rd ed. generator set package requirements
- Local annunciation to meet NFPA 110
- Emissions
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- Meets most worldwide emissions requirements down to 0.5 g/bhp-hr or 250 mg/Nm3 Nox level without aftertreatment
- Proven System
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- Field proven in a wide range of applications worldwide
- Fully prototype tested
- Certified torsional vibration analysis available
- Full Range of Attachments
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- Wide range of bolt-on system expansion attachments
- Factory designed and tested
- Flexible packaging options for easy and cost effective installation
- Worldwide Product Support
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- 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
Specifications
Full Specifications
- Generator Set Specifications
-
Continuous Rating
1530 ekW @ 1.0pfFuel Type
Natural Gas & PropaneMaximum Electrical Efficiency
45.3%Frequency
50 / 60 HzRPM
1500Speed
1500 RPMFrequency
50/60 Hz
- Engine Specifications
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Engine Model
G3512KDisplacement
3576 in³Aspiration
TABore
6.7 inStroke
8.5 inCompression Ratio
10.5Governor Type
Adem 6
- Generator Set Dimensions
-
Length
215 inWidth
71.97 inHeight
89.49 inDry Weight - Genset
37,082 lb
Equipment
- Standard Equipment
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Cooling
- Engine driven water pumps for jacket water and aftercooler.
- SCAC control valve
- Jacket water and SCAC thermostats.
- ANSI/DN customer flange connections for JW inlet and outlet.
Control Panel
- ECS 100 with colored HMI
- Ethernet Telematics
Air Inlet
- Two-element single-stage air cleaner with enclosure and service indicator.
Governing System
- ADEM 6
Exhaust
- Center section cooled turbocharger with Cat flanged outlet.
- Dry exhaust manifolds, insulated and shielded.
- Individual exhaust port and turbocharger outlet wired to Integrated Tmeperature Sensing Module (ITSM) with GECM providing alarms and shutdowns.
Fuel System
- Electronic fuel metering valve
- EN7462/CSAB149:3, NFPA37
- Throttle plate, 24V DC actuator, controlled by GECM
- Fuel system is sized for 31.5 to 47.2 MJ/NM3 dry pipeline natural gas with pressure of 10.2 to 34.5KPa to the engine fuel control valve.
Generator
- Operation and maintenance manuals
- Busbar connections
- IVR - Intergrated voltage regulator
- Paint- Caterpillar Yellow except rails gloss black
- Parts book
- Reactive droop
- Winding temperature detectors
- Crankshaft Vibration Damper and Guard
- RH/LH Service
- Anti-condensation space heater
- SR5 / N9500
Lube
- Electric Pre-lube pump
Starting/Charging
- 24V starting motors
Ignition System
- Integrated Cylinder Pressure Sensor (ICPS)
- Electronic Ignition System (controlled by ADEM 6)
- Optional Equipment
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Control Panel
- Load Share Module
- ECS 200 with colored HMI
- Cellular telematics
- Expandable Ethernet modules
- Remote HMI displays
- CAN 2 connection point
- Expandable I/O
Air Inlet
- Off Engine Air Cleaner - Mounting Brackets and Piping
Circuit Breaker
- LSI/LSIG/LSIG-P Long-Time, Short-Time, Instantaneous Annunciator, ground fault protect, ground fault annunciate
- Non-par/Par Breakers
- Rear-mounted
- 5000A 3-Pole IEC/ULCSA Rated Circuit Breakers
Cooling
- Coolant level drain line with valves
- Inlet/Outlet RH and LH connections
Lube
- Ship oil filled or dry(Ultra40)
- SYNHP (only ship dry)
- Oil Level Regulator
Starting/Charging
- Battery with cables and rack (shipped loose)
- Engine barring device
- Jacket water heater (220/400/240/480V)
- 60A, 24V charging alternator (requires engine driven pumps)
Exhaust
- Muffler and spark-arresting muffler with companion flanges
- Flange, Elbow, and Flexible Fitting
- Exhaust Expander
Fuel System
- Fuel filter
- Gas pressure regulator
- Gas Knockdown Regulator
- Gas shutoff valve 24V, Energized-To-Run (ETR)
Generator
- Cable access box
- Thermostate for space heater
- Generator space heater (with optional heater control)
- Manual voltage control
- NEMA/IEC Busbars
- Bearing temperature detectors
- Generator air filter
- Medium and high voltage generators and attachment
- Current transformer, differential current transformer, potential transformer
- Low voltage extension box
General
- Tool set
- US AID Emblem
- Special paint order
- Digital diagnostic tool
Package
- Seismic Isolators
- Spring Isolators
Grid Code Compliance
- 50 Hz: Germany (HV/MV), Great Britain, Italy (HV/MV), Belgium, Polan, Netherlands, Romania, Spain, France, Czech Republic, Greece, Ireland, and European Standard