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Overview

Producing reliable power from 72 ekW to 100 ekW at 60 Hz, our C4.4 diesel generator sets are engineered to meet your standby and prime applications, and measure up to your power standards. All are tested to maximum load before they leave any one of our ISO 9001 certified facilities. And because we believe power is more than quantity of kilowatts but quality of performance, we’ve incorporated our common rail fuel system for improved fuel efficiency, designed to meet EPA Stationary Emergency (Tier 3) emissions standards. Seismic certification is also available to maintain power during unexpected disturbances. Our integrated control system, including ATS and switchgear, ensures a consistent power supply and connection to your fleet through on-site and remote monitoring options. The EMCP 4.2 control panel, with a user-friendly interface, puts our advanced management and diagnostic tools in one. No two power needs are alike, which is why we offer a broad range of accessories and bolt-on system expansion attachments. Find flexible packaging options to work with your spatial and environmental conditions. It’s already built to exceed your expectations — customize your C4.4 generator sets to meet your demands.

Generator Set Specifications

Units:
Minimum Rating 72.0 ekW (90.0 kVA) 72.0 ekW (90.0 kVA) Less
Maximum Rating 100.0 ekW (125.0 kVA) 100.0 ekW (125.0 kVA) Less
Voltage 110 to 480 Volts 110 to 480 Volts Less
Frequency 60 Hz 60 Hz Less
Speed 1800 RPM 1800 RPM Less

Generator Set Configurations

Emissions/Fuel Strategy U.S. EPA Certified for Stationary Emergency Use Only (Tier 3 Nonroad Equivalent Emission Standards) U.S. EPA Certified for Stationary Emergency Use Only (Tier 3 Nonroad Equivalent Emission Standards) Less

Engine Specifications

Engine Model Cat® C4.4 Cat® C4.4 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
Governor Type Mechanical Mechanical Less
Fuel System Direct Injection or Common Rail Direct Injection or Common Rail Less
Bore 4.1 in 105.0 mm Less
Displacement 268.5 in³ 4.4 L Less
Stroke 5.0 in 127.0 mm Less

C4.4 (60 Hz)Standard Equipment

Air Inlet System
  • Air Cleaner

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

Control Panel
  • EMCP 4 Control panel

Exhaust System
  • 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

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

Governing System
  • Mechanical and electrical governing system - model dependent

Lube System
  • Lubricating oil
  • Oil drain line with valve

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

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

General
  • Engine and alternator pre-paint, Caterpillar Yellow

C4.4 (60 Hz)Optional Equipment

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

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

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

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

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

European Certifications
  • Upgrade to STD set for CE

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

Global Certifications
  • Certificaiton for CIS

Mounting Options
  • Electronic governor
  • Battery removal
  • Industrial silencer
  • Silencer installation kit

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

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 - compact set
  • Packing case - canopied set

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
  • Generator

  • Matched to the performance and output characteristics of Cat engines
  • Industry leading mechanical and electrical design
  • Industry leading motor starting capabilities
  • IP 23 Protection
  • Cat EMCP Control Panel

    The EMCP controller features the reliability and durability you have come to expect from your Cat equipment. The EMCP 4 is a scalable control platform designed to ensure reliable generator set operation, providing extensive information about power output and engine operation. EMCP 4 systems can be further customized to meet your needs through programming and expansion modules. The EMCP4.1 is fitted as standard.

    Design Criteria

  • The generator set is designed to meet ISO8528-5 transient response and NFPA 110.
  • Cooling system designed to operate in 50˚C / 122˚F ambient temperatures with an air flow restriction of 0.5 in. water.
  • CE Certification

    CE Certification available

    World Wide Product Support

    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 Cat® S•O•SSM program cost effectively detects internal engine component condition, even the presence of unwanted fluids and combustion by-products.

    General

  • Single wall 8 hour wide fuel tank
  • Circuit breaker, IEC, 3 pole
  • Industrial Silencer (10dBA)