D125 GC Generator Set
360° Exterior View
360° Exterior View
360° Exterior View
360° Exterior View
360° Interior View
360° Exterior View
At a Glance
Overview
Caterpillar is leading the power generation marketplace with Power Solutions engineered to deliver unmatched flexibility, expandability, reliability, and cost-effectiveness.
Generator Set Specifications
+ -| Minimum Rating | 125 ekW |
| Maximum 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 | 4.1in |
| Stroke | 5.3in |
| Displacement | 428in³ |
| 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 | 103.7in |
| Width - Maximum | 51.2in |
| Height - Maximum | 52.2in |
| Dry Weight - Genset (maximum) | 3099lb |
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 alternators
R frame auxiliary winding: R2273L4 SE aux alt 07, aux alt 08 and aux alt 10
Permanent magnet
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