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Overview

Producing reliable power from 50 to 110 kVA at 50 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 50 kVA 50 kVA Less
Maximum Rating 110 kVA 110 kVA Less
Emissions/Fuel Strategy EU Stage II & R96/EUIIIa EU Stage II & R96/EUIIIa Less
Voltage 110 to 480 Volts 110 to 480 Volts Less
Frequency 50 Hz 50 Hz Less
Speed 1500 rpm 1500 rpm Less
Duty Cycle Standby, Prime Standby, Prime Less

Engine Specifications

Engine Model Cat® C4.4 Cat® C4.4 Less
Bore 4.1 in 105.0 mm Less
Stroke 5.0 in 127.0 mm Less
Displacement 268.5 in³ 4.4 l Less
Compression Ratio 16.2:1, 17.25:1, 18.2:1 or 18.3:1 16.2:1, 17.25:1, 18.2:1 or 18.3:1 Less
Aspiration Turbocharged Turbocharged Less
Fuel System Direct Injection or Common Rail Direct Injection or Common Rail Less
Governor Type Mechanical Mechanical 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 meetsNFPA 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 (50 Hz) Standard Equipment

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

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

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

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

Control Panel
  • EMCP 4 Control panel

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

Governing System
  • Mechanical and electrical governing system - model dependent
  • Mechanical and electrical governing system - model dependent

Lube System
  • Lubricating oil
  • Oil drain line with valve
  • Oil drain line with valve
  • Lubricating oil

Generator
  • 12 leads

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

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

General
  • Engine and alternator pre-paint, Caterpillar Yellow
  • Engine and alternator pre-paint, Caterpillar Yellow

C4.4 (50 Hz) Optional Equipment

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

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

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

Control Panels
  • EMCP 4.2

Control Panel Options
  • Earth fault (2 wire only)

Enclosures
  • Rental pack - CAE rental option only
  • Sound attenuated Level 1 (galv)
  • CEE form sockets - CAE rental option only
  • Sound attenuated Level 2 enclosure
  • Socket blanking plate - CAE rental option only

European Certifications
  • Upgrade to STD set for CE

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

Global Certifications
  • Certification for CIS

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

Power Termination
  • Circuit breakers, UL listed

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

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

Why Choose Cat® Electric Power?

Caterpillar offers a comprehensive variety of electric power systems, customised to fit your needs. Our specialised 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

Application Center

Explore valuable resources for generator sizing, specification, and training materials. SpecSizer evaluates load types, collects data, and organises 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.

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