< Back

View Product Downloads
Yes, I would like to receive future marketing communications (such as email) from Caterpillar Inc., its affiliates and subsidiaries worldwide and the Caterpillar dealer network. Regardless of whether you decide to receive these marketing communications, Caterpillar will continue to send service/transactional messages, including those that have to do with any accounts that you may have with us.

Overview

Producing reliable power from 36 to 100 ekW at 60 Hz, our C4.4 diesel generator sets designed to ISO 8528-5 transient response requirements. All C4.4 to meet EPA Stationary Emergency (Tier 3) emissions standards.

Generator Set Specifications

Units:
Minimum Rating 36 ekW 36 ekW Less
Maximum Rating 100 ekW 100 ekW Less
Emissions/Fuel Strategy Non Regulated, EU Stage II Non Regulated, EU Stage II Less
Voltage 220 to 480 Volts 220 to 480 Volts Less
Frequency 60 Hz 60 Hz Less
Speed 1800 rpm 1800 rpm Less
Duty Cycle Standby, Prime Standby, Prime Less

Engine Specifications

Engine Model C4.4, In-line 4, 4-cycle diesel C4.4, In-line 4, 4-cycle diesel Less
Bore 4.13 in 105.0 mm Less
Stroke 5.0 in 127.0 mm Less
Displacement 268.5 in 4.4 l Less
Compression Ratio 18.2:1 18.2:1 Less
Aspiration Turbocharged Turbocharged Less
Fuel System Electronic (adjustable) Electronic (adjustable) Less
Governor Type Adem™A4 Adem™A4 Less

Generator Set Dimensions

Length - Maximum 75.8 in 1925.0 mm Less
Width - Maximum 44.1 in 1120.0 mm Less
Height - Maximum 53.6 in 1361.0 mm Less

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

SR5 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

EMCP 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

Cat dealers provide extensive post-sale support including maintenance and repair agreements. Cat dealers have over 1,800 dealer branch stores operating in 200 countries. The Caterpillar S•O•S℠ program cost effectively detects internal engine component condition, even the presence of unwanted fluids and combustion by-products

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

C4.4 (60 Hz) Standard Equipment

Air Inlet System
  • Air cleaner; light duty with disposable element

Air Inlet
  • Air Cleaner

Cooling
  • Package mounted radiator

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

Control Panel
  • EMCP 4 Genset Controller
  • EMCP 4.1

Exhaust
  • Exhaust flange outlet

Exhaust System
  • Stub pipe, gaskets, raincap and SAE exhaust flange for customer use - shipped loose

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

Fuel System
  • Standard open set fuel tank / base supplied base, formed steel with single wall integral 8-hour fuel tank

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
  • Tower panel, IP22, bottom cable entry
  • Segregated low voltage (AC/DC) wiring panel
  • Voltage regulator (single phase sensing)
  • Circuit breaker, IEC, 3 pole, mounted in tower panel
  • 12 leads
  • IP23 protection

Governing System
  • Mechanical and electrical governing system - model dependent

Power Termination
  • Bus Bar

Lube System
  • Oil drain line with valve
  • Lubricating oil

Mounting System
  • Captive linear vibration isolators between base and engine-generator
  • Includes lifting provision and drag points
  • Termination points for coolant and lube oil drain lines

Mounting
  • Rubber vibration isolators

Starting/Charging System
  • 24V battery with rack and cables

General
  • Paint - Caterpillar Yellow except rails and radiators gloss black
  • Engine and alternator pre-paint, Caterpillar yellow

Starting/Charging
  • Batteries
  • 24 volt starting motor

C4.4 (60 Hz) Optional Equipment

Exhaust
  • Industrial, Residential, Critical Mufflers

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

Alternator System
  • 3 phase sensing
  • Permanent magnet
  • Quadrature droop kit
  • LC frame alternator with coastal insulation protection
  • Anti-condensation heater
  • R frame auxilliary winding
  • LC frame alternator

Circuit Breakers
  • Circuit Breaker Upgrades - 4 Pole circuit reaker to 250A, 400A and 630 A

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

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

Cooling System
  • Coolant heater
  • Low coolant level shutdown
  • Low coolant temp alarm

Control Panel Options
  • Earth fault (2 wire only)
  • Panel mounted audible alarm
  • Control panel heater
  • Overload shutdown via breaker
  • Earth leakage (2 wire only)
  • Emergency stop with key
  • Battery charger
  • Volt free contacts
  • Voltage adjust potentiometer
  • Speed adjust potentiometer
  • EMCP 4.2

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

Enclosures
  • Sound attenuated Level 2 enclosure
  • Rental pack - CAE rental option only
  • Sound attenuated Level 1 (galv)

European Certifications
  • Upgrade to STD set for CE

Fuel System
  • Low fuel level shutdown
  • Low fuel level alarm
  • Compact skidbase for open set
  • Bunded fuel tank
  • Skidbase for CALG enclosure sets
  • Open set narrow base
  • High fuel level alarm

General
  • CSA Certification
  • Sound attenuated, weather protective or high ambient weather protective enclosure
  • Single or dual wall sub-base fuel tanks
  • Single or dual wall integral fuel tanks
  • Narrow, Wide or Skid Base
  • EEC Declaration of Conformity
  • EU Certificate of Conformance (CE)
  • Automatic transfer switches (ATS)
  • Integral & sub-base fuel tanks
  • Seismic Certification per applicable building codes: IBC 2000, IBC 2003, IBC 2006, IBC 2009, CBC 2007
  • UL 2200 package

Global Certifications
  • Certification for CIS

Mounting Options
  • Industrial silencer
  • Battery removal
  • Electronic governor
  • External single point lift - enclosure
  • Silencer installation kit

Special Packing/Inspectons for Shipment
  • PGS test report @ 0.8 power factor
  • PGS test report @ 1.0 power factor

General - Accessories / Miscellaneous
  • Packing case - compact set
  • Stone guards / rad trans flange
  • Packing case - canopied set

Application Center

Explore valuable resources for generator sizing, specification, and training materials. SpecSizer evaluates load types, collects data, and organizes it to help you select the generator set that's best for you. Find product comparisons, technical data, product sizing, and more using our technical information portal (TIP) specifically created for consultants, architects, engineers, and owners.

visit page

Why Choose Cat® Electric Power?

Caterpillar offers a comprehensive variety of electric power systems, customized to fit your needs. Our specialized systems deliver high power and performance in industries across the globe. With Caterpillar, you get outstanding manufacturing quality, expert support, and the essential tools and applications to complete any project.

Learn More About Electric Power

EMCP 4 Generator Set Controls

Cat generator sets provide a complete factory-built solution with fully featured standard and advanced controls. Optional accessories enhance the capabilities of the genset package-mounted control system.

Learn More