The Generac RD040 compressor is listed with standby output of 40 kW, Diesel fuel, 50 Hz operation, 110/220 V, 231/400 V output, Single phase / Three phase, rated current of 182 / 69 / 78 / 104 A, and sound level of 65 dBA @ 23 ft (7 m).
Generator • Diesel • 50 Hz • Single phase / Three phase
Key specifications
Visual model specs
Built only from this model’s supplied generator specifications.
40 kW
32 kW
How the Generac RD040 compares
This compares the supplied numeric specification with Generac generators in the same broad standby-power class where enough comparable data exists.
About 4% below the similar-output Generac average. Around the 41st percentile for this field.
About 6% above the similar-output Generac average. Around the 75th percentile for this field.
About 6% below the similar-output Generac average. Around the 29th percentile for this field.
About 7% below the similar-output Generac average. Around the 62nd percentile for this field.
Generator information
| Manufacturer | Generac |
|---|---|
| Model | RD040 |
| Generator type | Generator |
| Fuel | Diesel |
| Frequency | 50 Hz |
Electrical output
| Standby power | 40 kW |
|---|---|
| Prime power | 32 kW |
| Standby kVA | 40.0 |
| Voltage options | 110/220 V, 231/400 V |
| Phase | Single phase / Three phase |
| Rated current | 182 / 69 / 78 / 104 A |
| Power factor | 1.0 / 0.8 |
| Circuit breaker | 200 / 218 / 189 / 358 A |
Engine, cooling and controls
| Oil capacity | 1.72 gal (6.5 L) |
|---|---|
| Coolant capacity | 11.4 / 9.5 / 10.6 L |
| Maximum ambient | 122 °F (50 °C) |
| Controller | Multilingual Digital Evolution |
| Alternator | Generac Revolving field heavy duty generator |
Physical specifications
| Dry weight | 1, 953 lb (886 kg) |
|---|---|
| Sound level | 65 dBA @ 23 ft (7 m) |
Fuel system and runtime
| Fuel tank | 68 gal (257.4 L) |
|---|---|
| Tank runtime | 13.56 hr |
Disclaimer: Specifications should be verified against the official owner’s manual and confirmed on the Generac USA website.