New CAT Equipment

D125 GC Generator Set

125 ekW Diesel Generator Set

Producing reliable power of 125 ekW at 60 Hz, our D125 GC diesel generator sets designed to ISO 8528-5 transient response requirements. All D125 GC generator sets are available with a choice of emissions levels.

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Benefits

Reliability tested for 500 Hours

Ensures you can count on emergency power when it is needed

Saves up to 11% Installed Space

Requires less space for installation; leaves more room for your on-going operations

Spare Parts 98% Fulfillment within 24 hours

World's best product support network ensures spare parts are readily available for maintenance and service needs
  • Engine Specifications
    Aspiration
    Turbocharged, Air to Air Aftercooled
    Bore
    4.1 in
    Compression Ratio
    16.7:1
    Displacement
    428 in³
    Engine Model
    C7.1 I-6, 4-Cycle Diesel
    Fuel System
    Electronic, Common Rail
    Governor Type
    ADEMA4
    Stroke
    5.3 in
  • Generator Set Dimensions
    Dry Weight - Genset (maximum)
    3099 lb
    Height - Maximum
    52.2 in
    Length - Maximum
    103.7 in
    Width - Maximum
    51.2 in
  • Generator Set Specifications
    Duty Cycle
    Standby
    Emissions/Fuel Strategy
    U.S. EPA Cert., Tier 3
    Frequency
    60 Hz
    Maximum Rating
    125 ekW
    Minimum Rating
    125 ekW
    Speed
    1800 rpm
    Voltage
    208 to 600 Volts
Air Inlet System
  • Air cleaner; light duty with disposable element
Control Panels
  • GCCP 1.2 Control panel
Cooling System
  • Fan drive, battery charging alternator drive
  • Coolant drain line with valves
  • Caterpillar extended life coolant
  • Radiator and cooling fan with guards
Generator and Generator Attachments
  • Segregated low voltage (AC/DC) wiring panel
  • IP23 Protection
  • Circuit breaker, IEC, 3 pole, mounted in tower panel
  • Voltage regulator (single phase sensing)
  • Tower panel, IP22, bottom cable entry
  • 12 Leads
Exhaust System
  • Stub pipe, gaskets, raincap and SAE exhaust flange for customer use - shipped loose
Fuel System
  • Base, formed steel with single wall integral 24-hour fuel tank
  • Standard open set fuel tank/base supplied
Lube System
  • Oil drain line with valve
  • Lubricating oil
Mounting System
  • Termination points for coolant and lube oil drain lines
  • Includes lifting provision and drag points
  • Captive linear vibration isolators between base and engine-generator
Starting / Charging System
  • 24V battery with rack and cables
Governing System
  • Mechanical and electrical governing system - model dependent
General
  • Engine and alternator pre-paint, Caterpillar yellow
Alternator System
  • Alternator removal
  • Optional LC Frame alternator
  • R Frame auxiliary winding: R2273L4 SE aux alt 07, aux alt 08 and aux alt 10
  • Permanent magnet excitation (PMG)
  • Anti-condensation heater
  • 3 Phase sensing
  • Quatrature droop king
Circuit breakers
  • Padlockable breaker device
  • 4 Pole 250A, 400A and 630A Circuit breakers
Control Panel Options
  • Battery charger
  • Control panel heater
  • Earth fault (2 wire only)
  • Volt free contacts
  • Emergency stop with key
  • Speed adjust potentiometer
  • Earth leakage (2 wire only)
  • Overload shutdown via breaker
  • Speed adjust contacts
  • Panel mounted audible alarm
Control System
  • Volt free contacts for generator set running
  • Volt free contacts for common alarm
  • Static battery charger
  • GCCP 1.2
Cooling System
  • Coolant heater
  • Low coolant temperature
  • Low coolant level shutdown
Enclosures
  • Sound attenuated level 2 enclosure
Mounting Options
  • Silencer installation kit
  • Residential silencer
  • Battery removal
  • Industrial silencer removal
  • Electronic governor
Fuel Systems
  • Low fuel level shutdown
  • Open set narrow tankbase
  • Skidbase for CALG enclosure sets
  • DEFRA bunded fuel tank
  • Low fuel level alarm
  • Compact skidbase for open sets
  • High fuel level alarm
Test Reports
  • PGS Test report @ 0.8 power factor
  • PGS Test report @ 1.0 power factor
General
  • Stone guards/radiator trans flange
Global Certifications
  • Certification for CIS
Power Termination
  • Circuit breaker, IEC, 4 pole
Accessories / Miscellaneous
  • Packing case - compact set
  • Packing case - canopied set