Specifications
| Fuel | Diesel |
|---|---|
| Frequency | 60.0 Hz |
| Standby power | 10 kW |
| Standby kVA | 14 |
| Prime power | 10 kW |
| Controller | PowerCommand 1.1, PowerStart 0600 |
| Alternator | DS338-CPGK, DS340-CPGK, DS342-CPGK, DS339-CPGK, DS341-CPGK, DS343-CPGK (Class Class H insulation) |
| Voltage options | 230 V, 240 V, 220/380 V, 230/400 V, 240/416 V |
| Phase | 3 |
| Power factor | 1.0 |
| Battery voltage | 12 V |
| Battery quantity | 1 |
| Max ambient | 50 °C |
| Dimensions (L×W×H) | 1667×930×1282 mm |
| Dry weight | 601 kg |
| Sound level | 77.0 dBA @ 1 m |
| Fuel tank | 1000.0 L |
Filters & service parts
model family| Item | Spec | Capacity | Part # | Interval | |
|---|---|---|---|---|---|
| Air filter | Dry replaceable element | — | |||
| Fuel filter | Spin on fuel filters with water separator | — | |||
| Oil filter | Spin on full flow filter, filtration efficiency 25 micron 99% (min) | — | |||
| Battery | Set mounted battery | — | |||
| Belt | N/A | — | |||
| Coolant | Antifreeze 50/50 (Ethylene glycol) | — | |||
| Oil | Cummins heavy-duty engine oil | — | |||
| Spark plug | N/A | — |
Compiled from this model's family documentation — may include parts for closely-related variants. Confirm the exact part for your serial number.
Service specifications
10| Type | Item | Value | Unit | Condition |
|---|---|---|---|---|
| Other | AC waveform Total Harmonic Distortion (THDV) | No load to full linear load < 5. For any single harmonic < 2.5 | % | |
| Other | Governor regulation class | ISO 8528 | ||
| Other | Telephone Harmonic Factor (THF) | < 2 | % | for 50 Hz |
| Other | Telephone Influence Factor (TIF) | < 75 | for 60 Hz | |
| Speed | Frequency regulation | Droop | ||
| Speed | Random frequency variation | ± 0.75 | % | |
| Temperature | Standard temperature rise | 125-163 | ºC | |
| Voltage | Random voltage variation | ± 2.5 | % | |
| Voltage | Starting voltage | 12 | V | negative ground |
| Voltage | Voltage regulation, no load to full load | ± 2.5 | % | no load to full load |
Extracted from the manufacturer documentation linked to this model. Values are copied as printed; confirm against your unit's manual and serial number.
Recommended fluids
| Fluid | Grade | Standard | Ambient | Capacity | Notes |
|---|---|---|---|---|---|
| Coolant | Antifreeze 50/50 (Ethylene glycol) | Optional | |||
| Fuel | Diesel |
Extracted from the manufacturer documentation linked to this model. Values are copied as printed; confirm against your unit's manual and serial number.
Fault codes
5| Code | Name | Meaning | Severity | Action |
|---|---|---|---|---|
| 27 | Low AC voltage shutdown | Voltage on any phase has dropped below a preset value. Adjustable over a range of 50-95% of voltage, time delay 2-20 seconds. Default value is 90% for 5 seconds. | Shutdown | |
| 51 | High Current warning/shutdown | Implementation of the thermal damage curve with instantaneous trip level calculated based on current transformer ratio and application power rating. | Warning | |
| 59 | High AC voltage shutdown | Output voltage on any phase exceeds pre-set values. Values adjustable from 105-125% of nominal voltage, with time delay adjustable from 1-10 seconds. Default value is 110% for 5 seconds. | Shutdown | |
| 81 o | Over frequency shutdown/warning | Generator set is operating at a potentially damaging frequency level. Settings are adjustable from 2-10 Hz above nominal governor set point for 100-2000 half cycles delay. Default: 5 Hz, 1000 half cycles. | Warning | |
| 81 u | Under frequency shutdown | Generator set output frequency cannot be maintained. Settings are adjustable from 2-10 Hz below nominal governor set point, for a 500-2000 half cycles delay. Default: 5 Hz, 1000 half cycles. | Shutdown |
Extracted from the manufacturer documentation linked to this model. Values are copied as printed; confirm against your unit's manual and serial number.
Common questions
What size generator is the Cummins/Onan C12 D6?
The Cummins/Onan C12 D6 is rated 10 kW standby (14.0 kVA).
What engine does the Cummins/Onan C12 D6 use?
The Cummins/Onan C12 D6 is powered by the Cummins/Onan D6T engine.
What fuel does the Cummins/Onan C12 D6 use?
The Cummins/Onan C12 D6 runs on Diesel.
What is the sound level of the Cummins/Onan C12 D6?
The Cummins/Onan C12 D6 is rated at 77.0 dBA at 1 m, per the manufacturer specification sheet.
How much does the Cummins/Onan C12 D6 weigh?
The Cummins/Onan C12 D6 has a dry weight of 601 kg (1326 lb).
What size fuel tank does the Cummins/Onan C12 D6 have?
The Cummins/Onan C12 D6 has a 1000 liter (264 US gallon) fuel tank.
What voltage does the Cummins/Onan C12 D6 produce?
The Cummins/Onan C12 D6 is offered in 230 V, 240 V, 220/380 V, 230/400 V, 240/416 V, 3-phase.
What size battery does the Cummins/Onan C12 D6 need?
The Cummins/Onan C12 D6 uses 1 battery, 12 V each, per the manufacturer specification sheet.
Which alternator is fitted to the Cummins/Onan C12 D6?
The Cummins/Onan C12 D6 uses a DS338-CPGK, DS340-CPGK, DS342-CPGK, DS339-CPGK, DS341-CPGK, DS343-CPGK alternator. Insulation class Class H.
Troubleshooting
6Fault codes
| Code | Meaning |
|---|---|
| 59 | High AC voltage shutdown |
| 27 | Low AC voltage shutdown |
| 81 u | Under frequency shutdown |
| 81 o | Over frequency shutdown/warning |
| 51 | High Current warning/shutdown |
Symptoms & remedies
| Symptom | Cause |
|---|---|
| Battery voltage warning | Status of battery charging system (failure) |
Fault codes and symptom→remedy steps extracted from this model’s service/owner documentation; verify against the official manual before servicing. Full Cummins/Onan C12 D6 troubleshooting guide (17 entries) →
Available documents
This page was generated from the 3 manufacturer documents above by automated extraction; every figure shown is copied from one of them. How the data is compiled.