G3512H 50 Hz Gas Open Generator Set, Rear Right View
G3512H 50 Hz Gas Open Generator Set, Rear Left View
G3512H 50 Hz Gas Open Generator Set, Front Left view
G3512H 50 Hz Gas Open Generator Set, Front Right View
G3512H 60 Hz Gas Open Generator Set, Rear Right View
G3512H 60 Hz Gas Open Generator Set, Rear Left View
G3512H 60 Hz Gas Open Generator Set, Front Left View
G3512H 60 Hz Gas Open Generator Set, Front Right View
Gas generator sets

G3512H

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.

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Cat G3512H Gas Engine

  • Robust high speed block design provides prolonged life and lower owning operationg costs
  • Designed for maximum performance on low pressure pipeline natural gas and hydrogen mixtures
  • 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

  • Designed to match performance and output characteristics of Caterpillar gas engines
  • Industry leading mechanical and electrical design
  • High efficiency

EMCP 4.3 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

Emissions

  • Meets most worldwide emissions requirements down to 0.5 g/bhp-hr NOx level without aftertreatment

Proven System

  • Field proven in a wide range of applications worldwide
  • Fully prototype tested
  • Certified torsional vibration analysis available

Full Range of Attachments

  • Wide range of bolt-on system expansion attachments
  • Factory designed and tested
  • Flexible packaging options for easy and cost effective installation

Up to 25% hydrogen blended fuel option

Enables operation of up to 25% hydrogen blend (by volume) with pipeline natural gas fuel.

Up to 15% savings on service

Extended maintenance intervals leading to lower service costs

Up to 20% lower lube oil consumption

Leading to lower service costs and extended maintenance intervals

Generator Set Specifications
Continuous Rating1515 ekW / 1505 ekW @1.0pf
Fuel TypeNatural Gas, Hydrogen Blend (up to 25%)
Maximum Electrical Efficiency44.90%
Frequency50 / 60 Hz
RPM1500 rpm
Engine Specifications
Engine ModelG3512H
Displacement3574 in³
AspirationTA
Bore6.7 in
Stroke8.5 in
Governor TypeADEM A4
Generator Set Dimensions
Length223 in
Width76 in
Height91 in
Dry Weight - Genset31085 lb

Air Inlet

  • Package Mounted Air Cleaner with service indicator

Cooling

  • Jacket water and SCAC thermostats
  • 2nd Stage CAT Flange
  • ANSI Class 150 JW Connection
  • Engine driven pumps for jacket water and aftercooler cooling

Control Panels

  • Dedicated customer wiring terminals

Control Panel

  • EMCP4.3

Exhaust

  • Dry exhaust manifolds insulated and shielded
  • Center section cooled turbocharger with Cat flanged outlet

Generator

  • High efficiency low voltage Cat generator, permanent magnet excitation, digital regulation, IP23 water ingress protection, & form wound construction.

Starting/Charging

  • Electric Starter

General

  • Paint - Caterpillar Yellow except rails and radiators gloss black
  • Crankshaft vibration damper and guard
  • Electric Power Rating Guide
    application/pdf
  • Gas Generator Set 50 and 60 Hz Ratings Guide
    application/pdf
  • G3512H 50Hz Natural Gas Data Sheet
    application/pdf
  • G3512H 60Hz Natural Gas Data Sheet
    application/pdf

Need installed dimensions with enclosure and tank? See Model Configurations