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Overview

Cat® C7.1 Diesel Marine Generator Set has three phase ratings of 50 Hertz at 100, 118, and 150 ekW with heat exchanger cooling that meet U.S. EPA Tier 3 commercial, IMO II, and EU CC2 emissions standards. The C7.1 also has three phase ratings of 60 Hertz at 118, 150, 175, and 175 ekW with heat exchanger cooling that meet U.S. EPA Tier 3 commercial, IMO II, and EU CC2 emissions standards.

Generator Set Specifications

Units:
Minimum Rating 100 ekW (125 kVA) 100 ekW (125 kVA) Less
Maximum Rating 200 ekW (250 kVA) 200 ekW (250 kVA) Less
Frequency 50 Hz or 60 Hz 50 Hz or 60 Hz Less
Speed 1500 rpm (50 hz) or 1800 rpm (60 hz) 1500 rpm (50 hz) or 1800 rpm (60 hz) Less

Engine Specifications

Engine Model In-line 6, 4-Stroke-Cycle Diesel In-line 6, 4-Stroke-Cycle Diesel Less
Bore 4.13 in 105.0 mm Less
Displacement 433.3 in3 7.1 L Less
Stroke 5.3 in 135.0 mm Less
Aspiration TA TA Less
Governor Type Electronic Electronic Less
Fuel System Common Rail Fuel System Common Rail Fuel System Less

Generator Set Configurations

Emissions/Fuel Strategy EPA Tier 3, IMO II, EU CC2 EPA Tier 3, IMO II, EU CC2 Less

Generator Set Dimensions

Width 37.6 in 956.0 mm Less
Height 49.7 in 1263.0 mm Less
Weight 1652 -1840 kg, 3634-4026 lb 1652 -1840 kg, 3634-4026 lb Less
Length 76.2 in/1935 mm (minimum), 83.3 in/2116 mm (maximum) 76.2 in/1935 mm (minimum), 83.3 in/2116 mm (maximum) Less

Generator Specifications

Pitch 2/3 2/3 Less
Number of leads 12 12 Less
Insulation Class H Class H Less
IP Rating IP23 Water protection IP23 Water protection Less
Voltage regulator Solid state Solid state Less

C7.1 Standard Equipment

AIR INLET SYSTEM
  • Open Crankcase Ventilation (OCV) system
  • Turbocharger, jacket water cooled
  • Integrated coolant lines into manifold utilizing EGR circuit

CONTROL SYSTEM
  • Panels available in RH, LH, and rear configurations with a remote mount option
  • Electronic diagnostics and fault logging
  • Electronic governor
  • Electronic Control Module (ECM)
  • SAE J1939 data link Ratings Only
  • Electronic fuel/air ratio control

COOLING SYSTEM
  • Integrated heat exchanger and aftercooler
  • Compact design integral coolant passages
  • Thermostat and housing
  • Jacket Water Heater 120/240V option
  • Auxiliary seawater pump, gear driven
  • Engine mounted heat exchanger, removable tubeBundle (for sea water) (heat exchanger engines only)
  • Engine oil cooler
  • Auxiliary sea water lines
  • Keel cooling

EXHAUST SYSTEM
  • Water-cooled exhaust manifold & turbocharger
  • 152 mm (6 in) round flanged outlet
  • Dry Elbow/Flange options

FLYWHEELS & FLYWHEEL HOUSINGS
  • Flywheel Housing, SAE No. 2
  • Flywheel, 134 teeth
  • SAE standard rotation

FUEL SYSTEM
  • Common Rail Fuel System
  • Simplex and Duplex Fuel options
  • Flexible fuel line option
  • Fuel transfer pump, gear driven

GENERATORS AND GENERATOR ATTACHMENTS
  • 12 leads
  • 3 phase Brushless
  • Separately excited from auxiliary winding to provide 300% short circuit current up to 10 seconds
  • 2/3 Pitch
  • Broad voltage band
  • IP23 Water protection
  • Solid state voltage regulator with integral voltage adjustment
  • Class H insulation
  • Generator temperature rise exceeds marine society requirements for 105 C @ 50 C ambient - prime 85 C @ 50 C ambient - prime Connection poles

LUBE SYSTEM
  • Crankcase breather
  • Simplex and Duplex options
  • Oil filter, RH service
  • Oil filler, in valve cover and timing case (option)
  • Oil level gauge, RH service
  • Oil pan
  • Oil pan drain, RH`
  • Lubricating oil
  • Engine oil pump (gear driven)

MOUNTING SYSTEM
  • Skiddable base frame
  • Anti vibration isolators between base and engine-generator

POWER TAKE-OFFS
  • Poly-V groove for alternator drive
  • PTO Shaft Kit (optional)

GENERAL
  • Torsional vibration damper and guard
  • Paint, Caterpillar yellow
  • Lifting eyes
  • Protective lifting covers
  • Literature
  • Battery disconnect switch
  • Plastic wrap packaging
  • Note: Keel-cooled gen sets do not include the keel cooler(s).
  • Engine is certified to D2/E2 emissions cycles

C7.1 Optional Equipment

CONTROL SYSTEM
  • GOVERNOR DROOP KIT

EXHAUST SYSTEM
  • DRY ELBOW
  • DRY FLANGE
  • EXHAUST TEMP SENSOR

FUEL SYSTEM
  • Flexible Fuel Lines

LUBE SYSTEM
  • DIPSTICK

COOLING SYSTEM
  • Coolant recovery tank
  • Jacket Water Heater

POWER TAKE-OFFS
  • Crankshaft Pulley

LITERATURE

DECALS

Emissions Compliant for Global waters

U.S.EPA Tier 3, CCNR Stage 2, IMO II

Worldwide Support

Extensive service network of CAT dealers, Factory supported full generator set package (with optional MCS alarm and protection system), Available Worldwide Extended Service Coverage (ESC)

Durability

Performance iron with thousands of hours of validation testing for quality and durability, World class manufacturing facilities

ACERT Technology

High Pressure Common Rail provide precise fuel metering and consumptions as well as limited visible smoke, ECM provides excellent speed control, noise reduction and 100% load acceptance

Common Rail Fuel System

Noise Reduction

New block for low noise and vibrations, Insulated timing case cover, Isolated oil pan (also provides ease of maintenance), Improved pump and gear train system, Stiffer crankshaft, Multiple fuel injection strategy, Integrated induction manifold, Double curvature on think walled crankcase, Piston optimized for high speed operation

MCS Certified Engine

Control Panel

Cat® Dealer Service

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Extended Warranty and Support

Caterpillar offers a variety of integrated solutions to help you protect your investment, minimize owning and operating costs, and maximize up-time.

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