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Caterpillar

Cat C7.1 Generator Set

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.

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Details

Specifications

Spec Value
Minimum Rating 100 ekW (125 kVA) 100 ekW (125 kVA)
Maximum Rating 200 ekW (250 kVA) 200 ekW (250 kVA)
Frequency 50 Hz or 60 Hz 50 Hz or 60 Hz
Speed 1500 rpm (50 hz) or 1800 rpm (60 hz) 1500 rpm (50 hz) or 1800 rpm (60 hz)
Emissions/Fuel Strategy EPA Tier 3, IMO II, EU CC2 EPA Tier 3, IMO II, EU CC2
Spec Value
Engine Model In-line 6, 4-Stroke-Cycle Diesel In-line 6, 4-Stroke-Cycle Diesel
Aspiration TA TA
Bore 4.13 in 105 mm
Stroke 5.3 in 135 mm
Displacement 433.3 in³ 7.1 l
Governor Type Electronic Electronic
Fuel System Common Rail Fuel System Common Rail Fuel System
Spec Value
Width 37.6 in 956 mm
Height 49.7 in 1263 mm
Weight 1652 -1840 kg, 3634-4026 lb 1652 -1840 kg, 3634-4026 lb
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)
Spec Value
Pitch 2/3 2/3
Number of Leads 12 12
Insulation Class H Class H
IP Rating IP23 Water protection IP23 Water protection
Voltage Regulator Solid state Solid state

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

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

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