Generac
Generac RG04845
Protector
Generac RG04845 is a 48 kWe, 60 Hz emergency-standby generator using a 4.5 L inline-four naturally aspirated gaseous engine at 1800 RPM. Generac publishes both natural-gas and propane ratings; this database uses the 48 kWe natural-gas rating. EPA annual certification data lists a matching 4.4 L naturally aspirated family with a 64.4 kW maximum certification power node.
- Standby Power · 60 Hz
- 60 kVA
- Electrical Output
- 48 kWe
- Cylinders
- L4
- Displacement
- 4.5 L
- Rated Speed
- 1,800 RPM
Power Ratings
kWm = mechanical shaft power · kWe = electrical output · kVA = kWe ÷ 0.8 pf
60 Hz1800 RPM
| kWm | kWe | kVA | |
|---|---|---|---|
| Standby Power | — | 48 | 60 |
Generac RG04845 generator set context
The Generac RG04845 is listed here as a natural gas generator-drive engine for 60 Hz generator sets, with a headline 60 kVA / 48 kWe / standby rating. Use this page to compare the published engine output, electrical kWe/kVA ratings, emissions level, datasheet availability, and neighboring models before specifying an alternator, controller, enclosure, voltage, and compliance package.
Also searched as
Technical Specifications
| Brand | Generac |
| Model | RG04845 |
| Series | Protector |
| Configuration | Inline-4 Naturally Aspirated |
| Cylinders | 4 |
| Displacement | 4.5 L |
| Compression Ratio | 9.9:1 |
| Fuel Type | Natural Gas |
| Ignition Type | Spark Ignition |
| Cooling Method | Liquid-Cooled |
| Emissions Standard | U.S. EPA Stationary |
| Certifications | U.S. EPA Stationary, U.S. EPA Stationary Emergency |
| Country of Origin | United States |
Frequently asked questions
What is the power output of the Generac RG04845?
The Generac RG04845 is rated at 60 kVA standby at 60 Hz (1,800 rpm).
Does the RG04845 run at 50 Hz or 60 Hz?
The Generac RG04845 is rated for 60 Hz (1,800 rpm).
What fuel does the Generac RG04845 use?
The Generac RG04845 is a Natural Gas generator-set engine.
What is the displacement and cylinder configuration of the RG04845?
The Generac RG04845 is an inline-4 (4-cylinder) engine with a displacement of 4.5 L.
What emissions standard does the RG04845 meet?
The Generac RG04845 is certified to U.S. EPA Stationary emissions standards.
Is the Generac RG04845 still in production?
Yes — the Generac RG04845 is a current production model.
Is a datasheet available for the RG04845?
Yes — an official Generac datasheet for the Generac RG04845 can be downloaded from this page.
Related Engines
Compare Generac RG04845
Reference
- Canonical page
- /engines/generac-rg04845
- Last database update
- 2026-07-26
- Manufacturer files
- 1 datasheet linked
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