Menu

G3512E

CAT G3512E 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
  • 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

SR4B 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

CAT Electronic Control System

  • Simple user friendly interface and navigation
  • Digital monitoring, metering and protection setting
  • Fully-featured power metering and protective relaying
  • Remote control and monitor capability options

Cooling System

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

World Wide 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

G3512E Standard Equipment

Air Inlet

  • Two-element single-stage air cleaner with enclosure and service indicator

Control Panel

  • EMCP 4.3

Cooling

  • Jacket water and SCAC engine-driven pumps
  • Jacket water and SCAC thermostats

Exhaust

  • Dry exhaust manifolds, insulated and shielded
  • Individual exhaust port and turbocharger outlet wired to integrated temperature sensing module (ITSM) with GCEM providing alarms and shutdowns
  • Cat-flanged face outlet on turbocharger

Fuel System

  • Engine-installed electronic control valve
  • 24V DC energized-to-run (ETR) gas shutoff valve
  • Gas pressure regulator

Fuel system

  • Electronic fuel metering valve
  • 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

General

  • Paint- Caterpillar Yellow except rails are gloss black
  • Parts book
  • Crankshaft vibration damper and guard
  • Operation and maintenance manuals
  • RH Service

Generator

  • SR4B
  • Permanent Magnet Excitiation
  • Caterpillar's Digital Voltage Regulator (CDVR) including reactive droop capability, 3-phase voltage sensing, KVAR/PF modes, RFI suppression, and a min/max exciter
  • Anti-condensation space heater
  • Winding temperature detectors
  • NEMA Class H insulation

Governing System

  • ADEM A4

Ignition System

  • Electronic Ignition System (controlled by GECM)
  • Individual Cylinder Detonation Sensitive Timing (DST)

Starting/Charging

  • Electric Starter

G3512E Optional Equipment

Air Inlet

  • Mounting brackets and piping
  • Air cleaner with precleaner

Circuit Breakers

  • Frame mounting
  • Right, left, rear mounted
  • 3-pole (IEC 947-2 rated)
  • 100% rated, 3-pole (UL/CSA/IEC) 5th Digit Rating
  • S LSI, G LSIG, P LSIG-P, 4th Digit Type
  • 1200A, 3 Pole, UL-100% Rated P-Frame Circuit Breakers
  • 1600A, 2000A 3 Pole, UL-100% Rated R-Frame Circuit Breakers
  • 2000A 3 Pole, UL-100% Rated Masterpact Circuit Breakers

Cooling

  • Remote radiator for JW and SCAC circuits, level switch included but not wired
  • Coolant level drain line with valves, fan with guard
  • Inlet/Outlet connections

Control Panel

  • Local alarm module
  • Remote annunciator
  • Local PC monitoring
  • Remote PC monitoring
  • Engine failure relay

Exhaust

  • 305 mm (12 in.) Flange
  • 250mm-329mm Flange Expander
  • Flexible fittings

Fuel System

  • Remote mounted gas train, sized for 31.5 MJ/Nm3 (800 btu/cu ft) dry pipeline natural gas with inlet pressure range of 19.2 to 48.3 kPa (2.78 to 7 psi).

General

  • US AID emblem
  • Special paint order
  • Tool set
  • Digital diagnostic tool

Generator

  • Cable access box
  • Bearing temperature detectors
  • Generator air filter
  • European bus bars

Starting/Charging

  • 24V starting motors
  • Battery with cables and rack (shipped loose)
  • Jacket water heater
  • 45A, 24V charging alternator (requires engine driven pumps)
  • 20A, 24VDC battery charger

Select Units

Overview

From natural gas-fueled combined heat and power (CHP) systems and emergency power for facilities, to renewable biogas energy to support the local grid, or electricity generated from coal mine gases, Caterpillar has a wide range of reliable gas power solutions.

Generator Set Specification

  • Maximum Continuous Rating 1200 ekW 1200 ekW

Generator Set Specifications

  • Fuel Type Natural Gas Natural Gas
  • Maximum Electrical Efficiency 42.30% 42.30%
  • Maximum Standby Rating - -
  • Frequency 50 Hz 50 Hz
  • Speed 1500 rpm 1500 rpm

Engine Specifications

  • Bore 6.7 in 170.0 mm
  • Aspiration TA TA
  • Engine Model G3512E G3512E
  • Stroke 7.5 in 190.0 mm
  • Displacement 3158.0 in³ 52.0 l

Generator Set Dimensions

  • Length 181.0 in 4594.0 mm
  • Width 65.0 in 1647.0 mm
  • Height 89.0 in 2255.0 mm
  • Dry Weight - Genset 27475.0 lb 12460.0 kg
Customer Stories

Discover what’s new and how customers like you are benefiting from our products and services. Check back often for updates.

Promotions

Looking for that perfect piece of used equipment to complement your fleet? Check out our Used Exclusives, featuring new machines every week!

Social

Let’s talk. Connect with us on one of our social channels to start the conversation and see what we’re up to.

Branch Locator

Looking for your nearest branch? Get in touch with us today by contacting one of our branches directly. We’re always ready to help.

Services

When you choose Finning, you have a wide array of support and specialty services to help you get the most from your equipment.

Technology

Integrated technology can help you understand your equipment's output and help extend its lifespan.

Finance

Choose from a range of financing solutions that allow you to purchase equipment, parts, services, and technology when you need it.

Please share your feedback on Finning.com!

Close window

We are committed to providing you with the best site experience possible.  Please take our brief survey to tell us how we are doing.

Thank you in advance for your time!