C18 (50 HZ) | 550-715 kVA Diesel Generator

Diesel Generator Sets C18 (50 Hz)

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Key Specs

Maximum Rating
715 kVA
715 kVA
Minimum Rating
550 kVA
550 kVA
Emissions/Fuel Strategy
Low Fuel, China Nonroad III Emis Stds
Low Fuel, China Nonroad III Emis Stds


550 - 715 kVA Diesel Generator Set

The C18 diesel generator sets have been developed for your mission critical, standby and prime applications. Producing reliable power from 550 to 715 kVA at 50 Hz, meeting ISO 8528-5 transient response requirements and built to accept 100 % rated load in one step. Our C18 generator sets range from Low Fuel Consumption, Low Emissions and China Nonroad III Emission Standards Emissions / Fuel Strategy.


Greater than 15% kW/m2 *Increased Standby rating at 50Hz

Up to 37% Footprint Reduction

Requires less space for installation

Integrated Cat® Product Link™ Control System

  • Track Genset Health and Operation Parameters
  • Genset Utilization and Performance Tracking

Product Specifications for C18 (50 Hz)

Maximum Rating 715 kVA 715 kVA
Minimum Rating 550 kVA 550 kVA
Emissions/Fuel Strategy Low Fuel, China Nonroad III Emis Stds Low Fuel, China Nonroad III Emis Stds
Voltage 380 to 415 Volts 380 to 415 Volts
Frequency 50 Hz 50 Hz
Speed 1500 rpm 1500 rpm
Duty Cycle Standby, Prime Standby, Prime
Engine Model C18 ATAAC, I-6, 4-Stroke Water-Cooled Diesel C18 ATAAC, I-6, 4-Stroke Water-Cooled Diesel
Bore 5.71 in 145 mm
Stroke 7.2 in 183 mm
Displacement 1106.36 in³ 18.13 l
Compression Ratio 14.5:1 14.5:1
Aspiration Air to Air Aftercooled Air to Air Aftercooled
Fuel System Electronic unit injection Electronic unit injection
Governor Type Ademâ„¢A4 Ademâ„¢A4
Length - Maximum 162.4 in 4135 mm
Width - Maximum 78.3 in 1989 mm
Height - Maximum 75 in 1906 mm

C18 (50 Hz) Standard Equipment

Air Inlet System

  • Turbocharger
  • Light duty air cleaner
  • Aftercooler core

Air Inlet

  • Air cleaner

Control System

  • GCCP 1.2


  • Exhaust flange outlet


  • Coolant drain line with valve
  • Caterpillar extended life coolant
  • Fan drive, battery charging alternator drive
  • Radiator and cooling fan with guard

Exhaust System

  • Stainless steel exhaust flex gaskets, raincap and SAE exhaust flange for customer use - shipped loose


  • Secondary fuel filters
  • Fuel priming pump
  • Primary fuel filter with integral water separator

Fuel System

  • Standard 8 hour open set fuel tank


  • IP23 Protection
  • Load adjustment module provides engine relief upon load impact and improves load acceptance and recovery time
  • Matched to the performance and output characteristics of Cat engines

Generator and Attachments

  • Segregated low voltage (AC/DC) wiring panel
  • Integrated voltage regulator (IVR)
  • A Frame generator - IP21 protection
  • Integrated voltage regulator (IVR)
  • Mandatory option circuit breaker, IEC, 3 pole, mounted in power centre
  • Power center, IP22
  • Matched to the performance and output characteristics of Cat engines

Power Termination

  • Busbar

Governing System

  • Cat electronic governor (ADEM A4)

Control Panel

  • GCCP Genset Controller

Lube System

  • Lubricating oil
  • Oil drain valves


  • Rubber vibration isolators

Mounting System

  • Captive linear vibration isolators between base and engine-generator. includes lifting provisions and termination points for coolant and lube oil drain lines


  • 24 Volt battery with rack and cables


  • Engine and alternator pre-paint, Caterpillar yellow

C18 (50 Hz) Optional Equipment


  • Industrial, residential, critical mufflers

Air Inlet System

  • Dual element air cleaner
  • Single element air cleaner

Circuit breakers

  • 3 Pole (IEC-100% rated) Circuit breakers - Motorised
  • 4 Pole (IEC-100% rated) Circuit breakers - Motorised
  • Circuit breaker (IEC) Auxiliary contacts
  • Padlockable circuit breaker device
  • 3 Pole (IEC-100% rated) Circuit breakers - Package mounted
  • 4 Pole (IEC-100% rated) Circuit breakers - Package mounted
  • Power terminal strip
  • Shunt trip for IEC breaker


  • Anti-condensation heater
  • Excitation: [ ] Permanent magnet excitation (PMG) Excited (PM) [ ] Internally Excited (IE)
  • Oversize and premium generators

Power Termination

  • Circuit breakers, IEC compliant
  • Circuit breakers, UL listed

Control Panels

  • Local & remote annunciator modules
  • Load share module
  • Remote monitoring software
  • EMCP (4.2) (4.3) (4.4)
  • Digital I/O module

Control System

  • Oil temperature displays
  • GCCP 1.5
  • Volt free contact
  • Protective devices: Earth fault relay - earth leageage Ground fault relay - Overload shutdown via breaker - Low fuel level alarm - Low fuel level shutdown - High fuel level alarm - Fuel level sensor
  • Local alarm modules
  • Remote annunciator module
  • Local alarm horn

Cooling System

  • Low coolant temperature alarm
  • Radiator duct flange


  • Oversize batteries
  • Jacket water heater
  • Battery chargers
  • Heavy duty starting system
  • Charging alternator


  • Sound attenuated enclosures

Exhaust System

  • Manifold and turbocharger guards
  • Engine mounted muffler
  • 8 and 10 inch elbow kits
  • 8 and 10 inch GP flanges
  • 10, 25 and 35 end in / end outmufflers

Fuel System

  • Integral - Dual wall fuel tank base
  • Manual fuel transfer pump
  • Fuel transfer system

Generator and Attachments

  • LC frame generator
  • Permanent magnet excitation (PMG)
  • LC frame oversize generators
  • Space heaters
  • A Frame oversize generator
  • A Frame CIP generator
  • Ingress protection
  • LC frame CIP generator


  • Single or dual wall integral fuel tanks
  • UL 2200 package
  • Enclosures: Sound attenuated, weather protective
  • EU Certificate of Conformance (CE)
  • Integral & sub-base UL listed dual wall fuel tanks
  • Narrow, wide or skid base
  • The following options are based on regional and product configuration:
  • Seismic Certification per applicable building codes: IBC 2000, IBC 2003, IBC 2006, IBC 2009, CBC 2007
  • EEC Declaration of Conformity
  • CSA Certification
  • Sound attenuated, weather protective or high ambient weather protective enclosure
  • Automatic transfer switches (ATS)
  • Single or dual wall sub-base fuel tanks

Lube System

  • Manual sump pump

Starting and Charging

  • Jacket water heaters
  • 5 Amp Battery charger
  • Battery disconnect switch

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Service Agreement (Cat® CVA & LTSA)

Every piece of Cat equipment is designed and built to provide maximum productivity and operating economy throughout its working life. Your Cat dealer can help you maintain that built-in value through a Customer Value Agreement (CVA).

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C18 generator set, Front Right

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C18 generator set, rear right
C18 generator set, rear left
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C18 generator set, Front Left

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