C18 (60 Hz) Tier 4

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C18 Generator Set

The C18 diesel generator sets have been developed for your mission critical, standby and prime applications. Producing reliable power from 455 to 500 ekW at 60 Hz, meeting ISO 8528-5 transient response requirements and built to accept 100 % rated load in one step. The engines are certified to the US EPA Tier 4 Final emissions levels.

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Cat Generator Set Package

  • Cat generator set packages have been fully prototype tested
  • Accepts 100% block load in one step and meets NFPA 110 loading requirements
  • Conform to ISO 8528-5 steady state and transient response requirements

Cat Diesel Engine

  • Reliable, rugged, durable design
  • Field-proven in thousands of applications worldwide
  • Four-stroke-cycle diesel engine combines consistent performance and excellent fuel economy with minimum weight

A-Frame Alternator

  • Superior motor starting capability minimizes need for oversizing alternator
  • Designed to match performance and output characteristics of Cat diesel engines
  • Robust Class H insulation

GCCP 1.2 Control Panel

  • User-friendly interface and navigation
  • Scalable system to meet a wide range of installation requirement
  • Expansion modules and site-specific programming for specific customer requirements

Cooling System

  • Designed to operate in standard ambient temperatures up to 55°C (131°F)
  • Contact your Cat Dealer for specific ambient and altitude capabilities

Certifications

  • UL2200 Listed; CSA 22.2; Certification of Compliance – IBC Seismic; Dual IBC & HCAI

One Safe Source

  • Components used in the generator set are selected based on seamless design integration to provide the optimum performance
  • The generator set is fully assembled at a Caterpillar facility following our quality guidelines
  • Each generator set package is tested before leaving the Caterpillar facility
  • Cat product support, including dealer service, parts and warranty covers the entire Cat power system

World Wide Product Support

  • Cat dealers have over 1,800 dealer branch stores operating in 200 countries
  • Your local Cat dealer provides extensive post-sale support, including maintenance and repair agreements

Cat Clean Emissions Module (CEM)

  • The Tier 4 Final engine has been optimized to work with the Cat CEM.
  • The CEM is a reliable, compact, and lightweight system that gives maximum installation flexibility.
  • It features a diesel oxidation catalyst for particulate matter (PM) and hydrocarbon (HC) control.
  • Selective catalytic reduction (SCR) reduces NOx output and provides integrated sound attenuation.
  • The CEM is controlled by a separate dosing module that has been integrated into the standard generator set controls for complete monitoring, protection and closed loop NOx control.
  • For more information on the CEM, refer to cut sheet LEHE0359.

UL 2200 / CSA - Optional

  • UL 2200 listed packages
  • CSA Certified
  • Certain restrictions may apply.
  • Consult with your Cat® Dealer.

Virtual Tours

Documents & Brochures

Standard Equipment

Air Inlet
  • Air cleaner
Exhaust System
  • Exhaust manifold - dry
Cooling
  • Package mounted radiator
Fuel System
  • Fuel cooler
  • Engine fuel transfer pump
  • Primary fuel filter w/integral water separator and secondary filter
  • Fuel priming pump
  • Flexible fuel lines
Exhaust
  • Exhaust flange outlet
Fuel
  • Primary fuel filter with integral water separator
  • Fuel priming pump
  • Secondary fuel filters
Generator
  • Matched to the performance and output characteristics of Cat engines
  • IP23 Protection
  • Load adjustment module provides engine relief upon load impact and improves load acceptance and recovery time
Power Termination
  • Busbar
Lube System
  • Oil filter and dipstick
  • Lubricating oil
  • Oil drain lines with valve; piped to edge of base
  • Fumes disposal, piped to front of radiator
  • Oil cooler
Control Panel
  • GCCP Genset Controller
Mounting
  • Rubber vibration isolators
Protection System
  • Safety shutoffs for: Higher water temperature - Overspeed - Low oil pressure
Cooling System
  • Thermostats and housing, full open temperature 92 deg C (198 deg F)
  • Coolant level sensor
  • Coolant level sight gauge
  • Fan and belt guards
  • Jacket water pump, gear driven, centrifugal
  • Coolant drain line with valve; terminated on edge of base
  • Caterpillar extended life coolant
Starting/Charging
  • 24V, 45 Amp Charging alternator
  • 24 Volt electric starting motor
  • 24 volt starting motor
  • Batteries
General
  • Paint - Caterpillar yellow except rails and radiators gloss black
  • Paint, Caterpillar yellow
  • Operation and maintenance manual pack and OMM storage compartment
  • Parts book
  • Vibration damper
Control System
  • Local annunciator
  • Programmable Input / Output: 2 programmable digital inputs - 2 programmable relay outputs (Form A) - 2 programmable relay outputs (Form C)
  • Suitable for use as service equipment label
  • Separation plate
  • Control panel mounting location
  • Breaker box mounting location
  • Optional external analog input
  • Remote annunciators
  • GCCP 1.2
  • Communications: Customer data link (RS485 Modbus RTu) - Serial annunciator module data link for local and remote annunciator IVR - Integrated Voltage Regulation (Digital) - EM10 Excitation Module
  • Controls include: Run/auto/ stop/control - Speed adjust - Voltage adjust - Engine cycle crank - Emergency stop pushbutton
  • Digital indication for: rpm - DC volts - operating hours - Oil pressure (psi, kPa or bar) - Coolant temperature (C or F) - Volts (L-L & L-N), frequency (Hz) - Amps (per phase & average) - Power factor (per phase & average) - kW (per phase & average) - kVA (per phase & average) - kVAr (per phase and average) - kW-hr (total) - kVAr-hr (total)
  • Programmable protective relaying functions: Generator phase sequence - Over/under voltage (27/59) - Over/under frequency (81 o/u) - Overcurrent (50/51)
  • Warning/shutdown with common LED indication of shutdowns for: Low oil pressure - high coolant temperature - Overspeed - Emergency stop - Failure to start (overcrank) - Low coolant temperature - Low coolant level
  • Control panel options: Dust proof control panel - volt free contact - Device server - Ground fault relay
Governing System
  • Cat electronic governor (ADEM A4)
Generator and Attachments
  • Segregated low voltage (AC/DC) wiring panel
  • Brushless, self-excited 2/3 pitch, random wound.
  • Insulation Class H and temperature rise
  • AREP generator
  • CIP - generators
  • IP23 Protection
  • Power center, IP22 bottom cable entry
Air Inlet System
  • Single element air filter
  • Air cleaner - Heavy duty
  • Air cleaner - Single element
Extended Service Coverage
  • Silver, Gold and Platinum coverage
Circuit breakers
  • 3 Pole 100% rated

Additional information

Offering Type

Generator Set Specifications - Maximum Rating

500 ekW
Generator Set Specifications - Minimum Rating

455 ekW
Generator Set Specifications - Emissions/Fuel Strategy

U.S. EPA Tier 4 Final
Generator Set Specifications - Voltage

480 Volts
Generator Set Specifications - Frequency

60 Hz
Generator Set Specifications - Speed

1800 rpm
Generator Set Specifications - Duty Cycle

Standby, Prime
Engine Specifications - Engine Model

C18 ATAAC, I-6, 4-Stroke Water-Cooled Diesel
Engine Specifications - Bore

145 mm ( 1455.7 in )
Engine Specifications - Stroke

183 mm ( 7.2 in )
Engine Specifications - Displacement

18.1 l ( 1106.4 in³ )
Engine Specifications - Compression Ratio

14.5:1
Engine Specifications - Aspiration

Air to Air Aftercooled
Engine Specifications - Fuel System

Electronic unit injection
Engine Specifications - Governor Type

Adem™A4

  • Enclosures

    C18 Tier 4 Final Sound Attenuated Enclosure

    View Details

  • Control Panels

    EMCP 4.2B Control Panel

    View Details

  • Control Panels

    EMCP 4.4 Control Panel

    View Details

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