Specifications
| Fuel | Natural Gas, Propane Vapor |
|---|---|
| Frequency | 60.0 Hz |
| Standby power | 45 kW |
| Standby kVA | 68 |
| Prime power | 45 kW |
| Emissions | EPA Emissions Compliance: Stationary Emergency |
| Controller | Digital H-Panel Controller |
| Oil capacity | 5.7 L |
| Alternator | 390 (4-pole, Class H insulation) |
| Voltage options | 120 V, 208/240 V, 480 V |
| Phase | Three-Phase |
| Rated current | 188 A |
| Power factor | 0.8 |
| Circuit breaker | 120 A |
| Battery group | 24/27/31 |
| Battery cranking | 525/700/925 CCA |
| Battery voltage | 12 V |
| Battery quantity | 1 |
| Coolant capacity | 11.36 L |
| Max ambient | 40 °C |
| Dimensions (L×W×H) | 1930×950×1176 mm |
| Dry weight | 714 kg |
| Tank runtime | N/A hr |
Engine
| Oil capacity | 5.7 L |
|---|---|
| Coolant capacity | 11.36 L |
| Displacement | 5.4 L |
| Aspiration | Naturally Aspirated |
| Rated speed | 1800 rpm |
Maintenance & consumables
for the Generac SG045| Item | Spec | Capacity | Part # | Interval | |
|---|---|---|---|---|---|
| Air filter | Standard | — | |||
| Fuel filter | Standard | — | |||
| Battery | Standard | — | |||
| Belt | Standard | — | |||
| Coolant | Standard | 11.36 L | — | ||
| Oil | Full-flow spin-on cartridge | 5.7 L | — |
Common questions
What size generator is the Generac SG045?
The Generac SG045 is rated 45 kW standby (68.0 kVA).
What engine does the Generac SG045 use?
The Generac SG045 is powered by the Generac SG045 engine.
What fuel type does the Generac SG045 take?
The Generac SG045 runs on Natural Gas, Propane Vapor.
How much oil does the Generac SG045 take?
The Generac SG045 engine in the Generac SG045 has an oil capacity of 5.7 liters.
What alternator comes on the Generac SG045?
The Generac SG045 uses a 390 alternator. It has 4 poles. Insulation class H.
Fuel consumption
| Rating | Load | L/h | gal/h |
|---|---|---|---|
| Standby | 25% | 290.0 | 8.2 |
| Standby | 50% | 426.0 | 12.1 |
| Standby | 75% | 562.0 | 15.9 |
| Standby | 100% | 698.0 | 19.8 |
Available documents
Spec sheet — 0k4267-b-sg045-5-4l-60hz (Generac)Spec sheet — Generac 45kW SG045 Gas Generator 5.4L (Generac)Spec sheet — sg040-40kw-industrial-generator-spec-sheet (Generac)Parts manual — 0193710SBY (Generac)