Specifications
| Fuel | NG/LP |
|---|---|
| Frequency | 60.0 Hz |
| Standby power | 30 kW |
| Standby kVA | 30 |
| Controller | PowerCommand 1.1 |
| Alternator | CA Series (Class H insulation) |
| Voltage options | 120/240 V, 120/208 V |
| Phase | 1 |
| Rated current | 125 A |
| Circuit breaker | 175 A |
| Battery cranking | 550 amps at -18°C to 0°C CCA |
| Battery voltage | 12 VDC V |
| Max ambient | 50 °C |
| Dimensions (L×W×H) | 1829×864×1157 mm |
| Dry weight | 500 kg |
| Sound level | 72.0 dBA @ 7 m |
Engine
| Coolant capacity | 12.8 L |
|---|---|
| Displacement | 2.4 L |
| Aspiration | Naturally aspirated or turbocharged (varies by generator set model) |
| Rated speed | 1800 rpm |
Maintenance & consumables
for the Cummins/Onan QSJ2.4| Item | Spec | Capacity | Part # | Interval | |
|---|---|---|---|---|---|
| Fuel filter | Every 500 hours of operation or as needed, whichever comes first | — | 500 hr | ||
| Oil filter | Every 1000 hours of operation or as needed, whichever comes first | — | 1000 hr | ||
| Battery | As needed | — | |||
| Oil | 500 miles or 6 months, whichever comes first | — | 804 hr |
Common questions
How many kW is the Cummins/Onan RX 30?
The Cummins/Onan RX 30 is rated 30 kW standby (30.0 kVA).
What engine does the Cummins/Onan RX 30 use?
The Cummins/Onan RX 30 is powered by the Cummins/Onan QSJ2.4 engine.
What fuel does the Cummins/Onan RX 30 use?
The Cummins/Onan RX 30 runs on NG/LP.
What alternator does the Cummins/Onan RX 30 use?
The Cummins/Onan RX 30 uses a CA Series alternator. Insulation class H.
Parts
13| Part # | Description | Qty | System | |
|---|---|---|---|---|
| A046N983 | Preventive Maintenance Kit –Heavy Duty | 2 | Air filter | Amazon eBay |
| A046N985 | Preventive Maintenance Kit (Normal Duty Air Filter) | 2 | Air filter | Amazon eBay |
| A046N987 | Preventive Maintenance Kit (Normal Duty Air Filter) | 2 | Air filter | Amazon eBay |
| CA115-T12 | Large, Oil Cooler | Oil filter | Amazon eBay | |
| CA135-E12 | Large, Oil Cooler | Oil filter | Amazon eBay | |
| A046J612 | Base Barrier – Elevated Genset | 1 | Service part / kit | Amazon eBay |
| A046L270 | Instruction Sheet | 1 | Service part / kit | Amazon eBay |
| CA115-H14 | Small | Service part / kit | Amazon eBay | |
| CA115-J12 | Small | Service part / kit | Amazon eBay | |
| CA115-L14 | Small | Service part / kit | Amazon eBay | |
| CA115-M12 | Large | Service part / kit | Amazon eBay | |
| CA115-P12 | Large | Service part / kit | Amazon eBay | |
| CA115-R12 | Large | Service part / kit | Amazon eBay |
Service, wear & replacement parts referenced for this model and its engine — confirm the exact part for your serial number. See the full parts catalog to search and cross-reference.
Available documents
Spec sheet (Cummins/Onan)Spec sheet — NAS-5779-EN (Cummins/Onan)Reference (Cummins/Onan)