Generac 45kW 3600 RPM
The Generac 45kW 3600 RPM standby generator provides powerful and dependable backup power for residential, commercial, and light industrial applications. Engineered to automatically engage during outages, it supports essential systems, large appliances, and sensitive electronics with ease. Its corrosion-resistant aluminum enclosure and compact footprint make it a durable, space-efficient solution for varied environments.
Key Benefits of Generac 45kW 3600 RPM
- Quiet-Test™ Mode – Operates at reduced RPM for quieter, more efficient testing cycles.
- Cellular Connectivity – Monitor performance remotely with Mobile Link and Fleet service integration.
- TruePower™ Technology – Less than 5% harmonic distortion for safe use with sensitive electronics.
- Surge Capacity – Handles high startup loads for motors and heavy equipment.
- Small Footprint – Maximizes power in a compact design suitable for tight spaces.
- Controller Selectable Fuel – Easily switch between liquid propane and natural gas.
- Durable Construction – Aluminum housing and stainless exhaust for long-term protection.
Common Applications
- Large residential estates
- Commercial offices requiring continuous power
- Light industrial facilities
Packaging
Includes generator unit, aluminum enclosure, installation instructions, and warranty. Battery not included.
Product Properties
| Property | Value |
|---|---|
| Fuel Type | Liquid Propane or Natural Gas |
| Running Watts | 45000 |
| Engine Size | 2.4 L |
| Engine Type | 4-cyl In-line |
| Battery Size | Group 26 |
| Battery Type | Flooded Lead Acid |
| Enclosure | Aluminum |
| Weight | 1260 lb |
| Oil Capacity | 4 qt |
| NG Consumption – 50% | 3.5 gal/hr |
| NG Consumption – 100% | 5.4 gal/hr |
| Quiet-Test | Yes |
For more power options, see the Generac 40kW 3-Phase. Learn more at Generac.com.




