Overview#
The Cummins C600 N6 is a 600 kW (750 kVA) standby natural gas generator set powered by the GTA38 gas engine -- a turbocharged and aftercooled spark-ignited engine. The unit runs on natural gas or propane vapor (field selectable) and is equipped with PowerCommand controls providing isochronous governing and AmpSentry alternator protection. It carries UL 2200 listing and EPA certification for stationary emergency use.
The C600 N6 serves large commercial and industrial standby applications including hospitals, data centers, large office complexes, and manufacturing facilities. At 600 kW, it provides substantial emergency capacity for full-building backup while avoiding diesel fuel storage infrastructure, permitting, and secondary containment requirements.
Technical Specifications#
| Parameter | Value |
|---|---|
| Standby Rating | 600 kW (750 kVA) |
| Frequency | 60 Hz |
| Power Factor | 0.8 |
| Engine Model | GTA38 |
| Fuel Type | Natural gas / LPG |
| Cooling | Liquid |
| Aspiration | Turbocharged and aftercooled |
| Rated Speed | 1800 rpm |
| NG Fuel Consumption (Full Load) | ~6,000 CFH |
Our Service Experience#
The GTA38 gas engine is a well-established platform for the 600-650 kW gas generator class. Service access on the GTA38 is good, though the engine's physical size means spark plug replacement takes longer than on smaller units. The turbocharger should be inspected annually for shaft play and boost pressure. The catalytic converter (where fitted) requires periodic backpressure testing -- catalyst degradation is the most common cause of power derating on large gas units.
Gas supply infrastructure must be carefully sized for 600 kW gas generators. At approximately 6,000 CFH full-load consumption, a dedicated gas meter, adequately sized supply piping (typically 3-inch minimum), and a properly sized pressure regulator are essential. We always verify dynamic gas pressure at the engine inlet under full load conditions during commissioning and annual service.
Frequently Asked Questions#
What engine does the C600 N6 use? The Cummins GTA38 -- a turbocharged and aftercooled spark-ignited gas engine rated for 600 kW standby at 1800 rpm.
What is the standby rating of the C600 N6? 600 kW (750 kVA) at 60 Hz, 0.8 power factor. Emergency Standby Power (ESP) rating.
What are the service intervals? Oil and filter at 500 hours or 12 months. Air filter at 500 hours. Spark plugs at 1,000 hours. Major overhaul at 30,000 hours.
Can PowerGen service the C600 N6 in Northern California? Yes. PowerGen provides authorized Cummins natural gas generator service across the San Francisco Bay Area, Silicon Valley, and Northern California.
