D125 GC 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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Specifications
| Name | Type | Value | Unit Value (Imperial) | Unit Name | Unit Value (Metric) | Unit Name (Metric) |
|---|---|---|---|---|---|---|
| Standby Rating | text | 125 ekW | ||||
| Maximum Rating | text | 125 ekW | ||||
| Minimum Rating | text | 125 ekW |
Documents & Spec Sheets
Features & Benefits
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
Complete Specifications
Generator Set Specifications
| Name | Type | Value | Unit Value (Imperial) | Unit Name | Unit Value (Metric) | Unit Name (Metric) |
|---|---|---|---|---|---|---|
| Standby Rating | text | 125 ekW | ||||
| Maximum Rating | text | 125 ekW | ||||
| Minimum Rating | text | 125 ekW | ||||
| Frequency | text | 60 Hz | ||||
| Emissions/Fuel Strategy | text | U.S. EPA Tier 3 Certified | ||||
| Voltage | text | 208 to 600 Volts | ||||
| Speed | text | 1800 rpm | ||||
| Duty Cycle | text | Standby | ||||
| Engine Model | text | C7.1 I-6, 4-Cycle Diesel | ||||
| Bore | measurement | 4.1 | in | 105 | mm | |
| Stroke | measurement | 5.3 | in | 135 | mm | |
| Displacement | measurement | 428 | in³ | 7.01 | l | |
| Compression Ratio | text | 16.7:1 | ||||
| Aspiration | text | Turbocharged, Air to Air Aftercooled | ||||
| Fuel System | text | Electronic, Common Rail | ||||
| Governor Type | text | ADEM™A4 | ||||
| Length - Maximum | measurement | 103.7 | in | 2634 | mm | |
| Width - Maximum | measurement | 51.2 | in | 1300 | mm | |
| Height - Maximum | measurement | 52.2 | in | 1402 | mm | |
| Dry Weight - Genset (maximum) | measurement | 3099 | lb | 1406 | kg |
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