Specifications
| Fuel | Natural Gas, Propane Vapor |
|---|---|
| Frequency | 60.0 Hz |
| Standby power | 45 kW |
| Standby kVA | 56 |
| Prime power | 41 kW |
| Emissions | EPA Certified Stationary Emergency |
| Controller | H-100, Power Zone Pro |
| Oil capacity | 5.7 L |
| Alternator | Generac 390 mm (4-pole, Class H insulation) |
| Voltage options | 120/240 V, 120/208 V, 277/480 V, 346/600 V |
| Phase | Single-Phase, Three-Phase |
| Power factor | 0.8 |
| Battery group | 24/27/31 |
| Battery cranking | 525/700/925CCA CCA |
| Battery voltage | 12 VDC V |
| Battery quantity | 1 |
| Coolant capacity | 11.36 L |
| Max ambient | 50 °C |
| Dimensions (L×W×H) | 1930×950×1176 mm |
| Dry weight | 714 kg |
| Sound level | 80.0 dBA @ 7 m |
Engine
| Oil capacity | 5.7 L |
|---|---|
| Coolant capacity | 11.36 L |
| Displacement | 5.4 L |
| Aspiration | Naturally Aspirated |
| Rated speed | 1800 rpm |
Common questions
What is the power rating of the Generac SG045?
The Generac SG045 is rated 45 kW standby (56.0 kVA).
What engine does the Generac SG045 use?
The Generac SG045 is powered by the Generac 5.4L engine.
What fuel does the Generac SG045 use?
The Generac SG045 runs on Natural Gas, Propane Vapor.
What is the oil capacity of the Generac SG045?
The Generac 5.4L engine in the Generac SG045 has an oil capacity of 5.7 liters.
What alternator does the Generac SG045 use?
The Generac SG045 uses a Generac 390 mm alternator. It has 4 poles. Insulation class H.
Parts
3| Part # | Description | Qty | System | |
|---|---|---|---|---|
| 005632-0 | Cold Weather Kit | Service part / kit | PartsGeek | |
| 006204-0 | Extreme Cold Weather Kit | Service part / kit | PartsGeek | |
| 006205-0 | Scheduled Maintenance Kit | Service part / kit | PartsGeek |
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.
Fuel consumption
| Rating | Load | L/h | gal/h |
|---|---|---|---|
| Prime | 25% | ||
| Prime | 50% | ||
| Prime | 75% | ||
| Prime | 100% | ||
| Standby | 25% | 22.65 | |
| Standby | 50% | 39.3 | |
| Standby | 75% | 53.05 | |
| Standby | 100% | 65.45 |
Available documents
Brochure — 0166950SBY (Generac)Spec sheet — 0158020SBY (Generac)Spec sheet — 0174780SBY (Generac)Spec sheet — 0193710SBY (Generac)Spec sheet — 0k4267-b-sg045-5-4l-60hz (Generac)Spec sheet — Generac 45kW SG045 Gas Generator 5.4L (Generac)Spec sheet — sg045-45kw-industrial-gaseous-specsheet (Generac)