Specification sheet Spark ignited generator set 125 kW standby Features and benefits Size and sound level • Extremely quiet operation • Fully automatic operation when used with a Cummins automatic transfer panel • Available for use with natural gas or LP vapor • Attractive and discreet sound attenuated housing • Electronic governor for precise frequency control • Includes 120 V coolant heater • Listed to UL 2200 • EPA certified for dual fuel • Aluminum or steel enclosure for best anticorrosion performance Length 142 in (3614 mm), width 60 in (1520 mm), height 70 in (1789 mm) Sound: 75.2 dB(A) measured at 7 m, average at full load with sound level 2 enclosure Models and ratings Order model GGHJ Fuel Natural gas/ Propane Natural gas/ Propane Rated amps Circuit breaker Note: See page 4 of this document for derating factors.

Standard features Engine details Engine: • Electronic ignition • Electronic governor • Full-pressure lubrication • High-capacity oil sump, spin-on oil filter • Solenoid shift starter • 65 A, engine-driven battery charger • 120 V coolant heater • Oil drain extension Control system: • PCC 2100 control system • Automatic remote starting • Controls generator set starting and shutdown • Control components designed to withstand the vibration levels typical in generator sets • Field circuit breaker • High temperature, low oil pressure, low coolant level, overcrank and over speed shutdowns • Running...

Dimensions: mm/in Basic dimensions Note: This outline drawing is provided for general reference only and is not intended for design or installation. For more information see Operation and Installation manuals. Automatic transfer panel configurations Dedicated emergency standby service system Full-service rating standby system Housing features • Battery, 12 V, 620 cca (P/N 416-0823) • Battery heater kit (P/N 333-0469) • Full line of complementing automatic transfer panels • Sound attenuated, weather protective design, keylockable service access doors • Internal starting battery tray and tie down...

Derating factors After sale support 125GGHJ Model, Natural Gas Three phase: Engine power available up to 594 m (1950 ft) at ambient temperatures up to 40 °C (104 °F). Above 594 m (1950 ft) derate at 4% per 305 m (1000 ft), and 2% per 11 °C (1% per 10 °F) above 40 °C (104 °F). Largest distributor/dealer support network Cummins generator sets are supported by the largest and best trained worldwide certified distributor/dealer network in the industry. This network of knowledgeable Cummins distributor/dealers will help you select and install the right generator set and accessories to meet the requirements...