3508B Land Electric-Drive Drilling Module

Oil and gas drilling is a complex task that requires specialized power generation equipment. Cat 3500 power modules are specifically designed for drilling operations of electric AC rigs. They combine decades of field experience of the 3500 platform with technology in electronics to ensure highest performance, low emissions, and simplified operator interface. Cat power modules are backed by the worldwide network of Cat dealers ready to support your operation with technical support, service, parts, and warranty. 3508B land drilling power module rating: 835 ekW (1194 kVA) @ 50 Hz (1500 rpm). Not emissions certified, available for non-regulated areas.

Engine Specifications

Minimum Rating 835ekW
Maximum Rating 835ekW
Emissions Non-certified
Aspiration Turbocharged-Aftercooled
Voltage 600
Weight 33846lb
Generator SR4B
Oil Change Interval 500h
Fuel System EUI
Displacement 2111in³
Bore 6.69in
Engine Control and Protection ADEM A3
Stroke 7.48in


Width 91.3in
Height 102.2in
Length 196.3in

Capacity for Liquids

Lube Oil System - Refill 60gal (US)
Cooling System - Engine 27gal (US)

Standard Equipment

  • Air Inlet System
    • Corrosion-resistant aftercooler core
    • Regular duty air cleaner
    • Service indicator
  • Control System
    • ADEM A3 ECU, left-hand mounted
  • Cooling System
    • Separate-circuit aftercooled
    • Outlet controlled jacket water thermostat
    • Jacket water pump - gear driven
    • Dual outlet
    • Aftercooler water pump - gear driven
    • Aftercooler water thermostat
  • Exhaust System
    • Dry exhaust manifold
    • Dual turbochargers, water cooled bearings
    • Exhaust flexible fitting, adapters, and flanges
  • Flywheel And Housing
    • SAE No. 00 flywheel
    • SAE No. 00 flywheel housing
    • SAE standard rotation
  • Fuel System
    • Fuel filter simplex (LH) with priming pump (LH)
    • Fuel transfer pump
    • Flexible fuel lines
    • Electronic unit injectors
  • Generator
    • SR4B generator
    • Twin-bearing, close-coupled
    • Form wound, class H insulation, 80/40 temperature rise
    • Permanent magnet excitation
  • Instrumentation
    • Emergency stop button
    • Service port connector
    • Customer connection terminal blocks
    • Electronic instrument panel
    • Analog instrument gauges:
    • Digital display readouts:
  • Lubrication System
    • Crankcase breather
    • Oil cooler
    • Simplex oil filter
    • Shallow oil pan
    • Oil drain extension, 2 in NPT female connection
  • Mounting System
    • Oilfield base 7.85 m (25 ft 9 in) length. Heavy-duty land rig inner base frame — three-point mount to oilfield base
  • Power Take-offs
    • Accessory drive
  • Protection System
    • Engine alarms, derate, and shutdown in abnormal operation
  • Starting System
    • Air starting motor
    • Air silencer
  • General
    • Paint - Cat yellow
    • Vibration damper and guard
    • Lifting eyes
    • Lift and cable two provisions

Optional Equipment

  • Air Inlet System
    • Heavy duty air cleaner
    • Remote air inlet adapters
  • Control System
    • Load sharing governor, 2301A
    • Load sharing module
    • Governor conversion to 0-200 mA direct rack control
  • Cooling System
    • Radiator, high gloss black conventional core radiator. Includes radiator, blower fan, fan drive, fan pulley, belt guard, radiator guard, cover, water level switch gauge, coolant level sensors
  • Exhaust System
    • Exhaust elbows
    • Exhaust mufflers
  • Fuel System
    • Primary fuel filter
  • Generator And Attachments
    • Low voltage extension box
    • Potential and current transformers
    • Air filter
    • Cable access box
    • Bearing RTDs
  • Instrumentation
    • Customer management device
    • Gauges and instrumentation panels
    • Switches and contactors
  • Lubrication System
    • Crankcase fumes disposal
    • Oil pan accessories
  • Mounting System
    • Bases
  • Power Take-off
    • Crankshaft pulley
    • Front stub shaft
    • Charging alternator
  • Protection System
    • Explosion relief valves (3)
    • Shutoffs
    • Switches and contactors
  • Starting System
    • Manual air starter
    • Air pressure regulator
  • General
    • Engine barring group
    • Jacket water heater