The Cummins Onan C45 N6 generator is listed with standby output of 45 kW, Natural gas/Propane fuel, 60 Hz operation, 5 available voltage configurations, and Single phase / Three phase.
Generator • Natural gas/Propane • 60 Hz • Single phase / Three phase
Key specifications
Useful generator charts
Charts are shown only when this model has enough usable source data.
20.6 kW
20.4 kW
How the Cummins Onan C45 N6 compares
This compares the supplied numeric specification with Cummins Onan generators in the same broad standby-power class where enough comparable data exists.
About 9% above the similar-output Cummins Onan average. Around the 68th percentile for this field.
Very close to the similar-output Cummins Onan average. Around the 50th percentile for this field.
About 57% above the similar-output Cummins Onan average. Around the 95th percentile for this field.
Generator information
| Manufacturer | Cummins Onan |
|---|---|
| Model | C45 N6 |
| Generator type | Generator |
| Fuel | Natural gas/Propane |
| Frequency | 60 Hz |
Electrical output
| Standby power | 45 kW |
|---|---|
| Standby kVA | 56.0 |
| Voltage options | 120/240 V, 120/208 V, 277/480 V, 347/600 V, 127/220 V |
| Phase | Single phase / Three phase |
Engine, cooling and controls
| Engine model | Cummins/Onan QSJ5.9G |
|---|---|
| Engine displacement | 360 cu in (5.9 L) |
| Aspiration / cooling | Naturally aspirated or turbocharged |
| Rated engine speed | 1800 rpm |
| Engine oil capacity | 3.99 gal (15.1 L) |
| Engine coolant capacity | 4.23 gal (16 L) |
| Oil capacity | 3.99 gal (15.1 L) |
| Coolant capacity | 4.23 gal (16 L) |
| Maximum ambient | 122 °F (50 °C) |
| Controller | PC 1.1, PC 2.3, PCC1.1, PowerCommand 1.1 |
| Alternator | UC224D-G or UC274C-F |
| Emissions | EPA |
Physical specifications
| Dry weight | 2, 180 lb (989 kg) |
|---|---|
| Dimensions (L × W × H) | 98 × 40 × 58 in (2489 × 1016 × 1473 mm) |
Battery
| Battery group | 34 |
|---|---|
| Battery cranking | 850 CCA |
| Battery voltage | 12 V |
Fuel consumption
| Prime | 7.77 L/h @ 100% |
|---|
Maintenance and service parts
| Engine oil | Interval: 250 hr; Specification: Replace engine oil and filters. Refer to the Engine Oil section for the procedure. |
|---|---|
| Fuel filter | Interval: 24 hr; Specification: Check fuel lines and hoses: Visually check for leaks, worn or damaged hoses. To replace, contact your authorized distributor. |
| Air filter | Interval: 250 hr |
| Coolant | Interval: 500 hr; Specification: Starts to open within 2 °F (1 °C) of 180 °F (82 °C); Fully open within 2 °F (1 °C) of 203 °F (95 °C); Flow valve and flange clearance (minimum): 0.26 in (6.6 mm) |
| Belt | Interval: 24 hr; Specification: Checking drive belt condition and tension: Visually check belt for evidence of wear or slippage. To replace, contact your authorized distributor. |
Disclaimer: Specifications should be verified against the official owner’s or service manual and confirmed on the Cummins North America generator website.