D125 GC

D125 GC Generator Set

D125 GC C7.1 (60 HZ) 125 kW Diesel Generator models' range of accessories, emissions level & other options allow customers to customize for their needs.

D125 GC Open Set

DESCRIPTION

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.Caterpillar is leading the power generation marketplace with Power Solutions engineered to deliver unmatched flexibility, expandability, reliability, and cost-effectiveness.Electric Power

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

M-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

  • UL 2200 Listed
  • ULC Certification Available

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

Worldwide 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

  • Standard Equipment
  • Optional Equipment
  • Specs
  • Docs

Standard Equipment

  • 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

Optional Equipment

  • 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

Specs

Overview

Long Name:
D125 GC Generator Set
Name:
D125 GC
Brand:
Cat
Status:
Current

Generator Set Specifications

Maximum Rating
125 ekW
Minimum Rating
125 ekW
Emissions/Fuel Strategy
U.S. EPA Cert., Tier 3
Voltage
208 to 600 Volts
Frequency
60 Hz
Speed
1800 rpm
Duty Cycle
Standby

Engine Specifications

Engine Model
C7.1 I-6, 4-Cycle Diesel
Bore
4.1 in / 105 mm
Stroke
5.3 in / 135 mm
Displacement
428 in³ / 7.01 l
Compression Ratio
16.7:1
Aspiration
Turbocharged, Air to Air Aftercooled
Fuel System
Electronic, Common Rail
Governor Type
ADEM™A4

Generator Set Dimensions

Length - Maximum
103.7 in / 2634 mm
Width - Maximum
51.2 in / 1300 mm
Height - Maximum
52.2 in / 1402 mm
Dry Weight - Genset (maximum)
3099 lb / 1406 kg

SEE HOW D125 GC COMPARES AGAINST FREQUENTLY COMPARED PRODUCTS.

Diesel Generator Sets
D125 GC
D125 GC Open Set
Brand
Cat
Status
Current
Maximum Rating
125 ekW
Minimum Rating
125 ekW
Emissions/Fuel Strategy
U.S. EPA Cert., Tier 3
Voltage
208 to 600 Volts
Frequency
60 Hz
Speed
1800 rpm
Duty Cycle
Standby
Engine Model
C7.1 I-6, 4-Cycle Diesel
Bore
4.1 in / 105 mm
Stroke
5.3 in / 135 mm
Displacement
428 in³ / 7.01 l
Compression Ratio
16.7:1
Aspiration
Turbocharged, Air to Air Aftercooled
Fuel System
Electronic, Common Rail
Governor Type
ADEM™A4
Length - Maximum
103.7 in / 2634 mm
Width - Maximum
51.2 in / 1300 mm
Height - Maximum
52.2 in / 1402 mm
Dry Weight - Genset (maximum)
3099 lb / 1406 kg
Diesel Generator Sets
D1000 GC
DE1000 GC
Brand
Cat
Status
Current
Maximum Rating
1000 ekW
Minimum Rating
1000 ekW
Emissions/Fuel Strategy
U.S. EPA Tier 2
Voltage
380 - 480 Volts
Frequency
60 Hz
Speed
1800 rpm
Duty Cycle
Standby
Engine Model
C32 TA, V-12, 4-Stroke Water-Cooled Diesel
Bore
5.71 in / 145 mm
Stroke
6.38 in / 162 mm
Displacement
1958.86 in³ / 32.1 l
Compression Ratio
15.0:1
Aspiration
TA
Fuel System
EUI
Governor Type
Adem™A4
Length - Maximum
164.3 in / 4175 mm
Width - Maximum
73.1 in / 1856 mm
Height - Maximum
87.3 in / 2217.5 mm
Dry Weight - Genset (maximum)
14669 lb / 6654 kg
Diesel Generator Sets
D1250 GC
DE1250 GC
Brand
Cat
Status
Current
Maximum Rating
1250 ekW
Minimum Rating
1250 ekW
Emissions/Fuel Strategy
U.S. EPA Tier 2
Voltage
380 - 480 Volts
Frequency
60 Hz
Speed
1800 rpm
Duty Cycle
Standby
Engine Model
C32 TA, V-12, 4-Stroke Water-Cooled Diesel
Bore
5.71 in / 145 mm
Stroke
6.38 in / 162 mm
Displacement
1958.86 in³ / 32.1 l
Compression Ratio
15.0:1
Aspiration
TA
Fuel System
EUI
Governor Type
Adem™A4
Length - Maximum
164.3 in / 4175 mm
Width - Maximum
82.3 in / 2090.5 mm
Height - Maximum
89.3 in / 2268 mm
Dry Weight - Genset (maximum)
15776 lb / 7156 kg