336 Excavator

  • Specs Summary

Gas Generator G3512H

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.

Standard Equipment

Air Inlet

  • Package Mounted Air Cleaner with service indicator
  • Single-element or two-element single-stage air cleaner with enclosure and service indicator

Circuit Breaker

  • 2500A 3-pole IEC rated circuit breakers, UL100% Rated
  • LSI long-time, LSI-P long-time, LSIG long-time, LSIG-P long-time options
  • Rear mounted

Control Panels

  • EMCP 4.3 Genset Controller


  • 2nd stage CAT flange
  • ANSI class 150 JW connection
  • Engine driven water pumps for jacket water and after cooler
  • Jacket water and SCAC thermostats


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

Optional Equipment

Air Inlet

  • Mounting brackets and piping
  • Air cleaner with precleaner

Circuit Breaker Orientation

  • Frame Mounting
  • No UV trip or package CB wiring
  • 3000/3200/4000A, 3 Pole, UL100% Rated Masterpact circuit breaker (60 Hz only)

Control Panels

  • Language Options
  • Empty Upper Box Right/Left
  • Right/Left/Rear Extension Box
  • Cable shroud location
  • Synchronization module
  • Engine failure relay
  • Cat Connect: ethernet, satellite, cell telematics
  • Local/Remote PC Monitorring
  • Local alarm module
  • 16 point/32 light annunciator with NFPA99-110/CSA282 configuration
  • Discrete I/O module, 12 digital inputs, 8 'Form C' relay
  • Remote annunciator


  • Remote radiator for JW and SCAC circuits, level switch included but not wired
  • JW heater, engine starting aid
  • inlet/outlet connections


  • 305 mm (12 in.) flange
  • Exhaust expander [250mm-329mm (10in-12in)]
  • Elbow
  • Flexible fitting [305mm x 305mm (12in. X 12in.)] w/ 12 bolt-flanges
  • Muffler options
  • 406mm (16in.) sparking-arresting muffler with companion flanges

Fuel System

  • Fuel filter
  • 3, 0-100 kPag, 4-20mA gas train pressure sensors
  • 1/2" NPT gas train conduit connectors
  • Gas knockdown regulators


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


  • RTD monitoring
  • Cable access box
  • Bearing temperature detectors
  • Generator air filter
  • Medium and high voltage generators and attachment
  • Manual voltage control

Governing System

  • ADEM A4 4-20mA (0-5V) speed input


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