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.
Overhaul & repair parts- Manufacturer files
- 1 datasheet
- Last updated
- 2026-07-26
- Package route
- gas generator sets
- 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 |
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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.
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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 information is listed for the RG04845?
This record lists U.S. EPA Stationary for the Generac RG04845. Confirm the exact engine family, model year, configuration and applicable manufacturer certification documents before specifying it for a regulated project. A database label does not establish certification of a complete generator package.
What is the catalog status of the Generac RG04845?
The Generac RG04845 is marked active in this database. Confirm current production and availability with the manufacturer; catalog status is not a live supply check.
Are reference documents available for the RG04845?
This page links reference documents for the Generac RG04845. Check each document's title, model coverage, revision and rating conditions before using it for selection.