About
The 20kW1 DX generator is there when you need it most, providing more power on both natural gas and liquid propane than any other generator in its class. The workhorse of the PowerProtectDX lineup, the 20kW unit is backed by the most comprehensive warranty over time with a 10-Year limited warranty.
Click here to view spec sheet.
Available Models: 40657
Product Details
|
Highest-Rated Power Output in its Class Get more bang for your buck with the most powerful natural gas unit in its class.2 |
Best-In-Class Warranty 10-Year limited warranty3 of parts, labor, and travel, included for the entire term. The industry’s most comprehensive warranty over time is standard to give you piece of mind that you have the coverage you need. |
|
Quiet Weekly Test Mode Over 65% quieter during weekly test mode, for less disruption to you and your neighbors.4 |
Multiple Fuel Options Optimized for both natural gas and liquid propane fuels, the PPDX20 can provide reliable backup power to your home regardless of your available fuel options. |
|
Commercial-Grade Vanguard® Power Rugged, reliable engines trusted for the most demanding commercial applications, so you always get the power you need. |
Easy Installation & Serviceability Approved for installation as close as 18" to a building for flexibility of placement around the home - simple toolless panel removal also allows for easy serviceability and maintenance.5 |
|
Assembled & Engineered in USA Briggs & Stratton generators are designed and assembled in the USA.6 |
Power Management System (Optional) Customizable to your home's power needs, Symphony® II and Amplify™ Power Management systems offer prioritized whole house power giving flexibility to a more affordable standby generator solution. |
|
Corrosion Resistant Enclosure & Base Automotive-grade galvanneal steel base and aluminum enclosure to resist rust, and powder-coated paint for years of protection against chips and abrasions. |
Superior Customer Support When you need support, we've got your back with a nationwide call center and dealer network. Our best-in-class customer service team is always prepared to assist with any questions you may have. |
1This generator is listed in accordance with UL (Underwriters Laboratories) 2200 (stationary engine generator assemblies) and CSA (Canadian Standards Association) standard C22.2 No.100-14 (motors and generators).
2On natural gas in its named class
3See operator’s manual for complete warranty details.
4Compared to full load based on lowest microphone at 7 meters
5The installation manual contains specific instructions related to generator placement in addition to NFPA 37, including the requirement that carbon monoxide detectors be installed and maintained in your home or business.
6Of U.S. and global parts
Manuals
Download the operator's manual or illustrated parts list for your Briggs & Stratton engine or equipment by following our step-by-step process. Find Manuals > |
FAQs
Have a question? Search our FAQs to find answers related to model specifications, routine maintenance, repair or troubleshooting. Search FAQs > |
Maintenance How-To Articles
Find DIY articles on how to use & maintain your Briggs & Stratton engine or equipment. Find Articles > |
Shop Repair & Maintenance Parts
Find genuine Briggs & Stratton repair and/or maintenance parts for your engine or outdoor power equipment to ensure future performance. Purchase Parts > |
PowerProtect™ DX 20kW Standby Generator
| Model Number | 40657 |
| Running Watts (Liquid Propane) kW** | 20 |
| Running Watts (Natural Gas) kW** | 20 |
| Running Amperage (Liquid Propane) Amps** | 83.3 |
| Running Amperage (Natural Gas) Amps** | 83.3 |
| Voltage | 120 / 240 |
| Circuit Breaker Amps | 100 |
| Engine Brand | Vanguard® |
| Engine Displacement (cc) | 993 |
| Assembled Length (in.) | 46.5 |
| Assembled Width (in.) | 26.8 |
| Assembled Height (in.) | 28.4 |
| Assembled Weight (lbs.) | 520 |
| Normal Operating Sound | 68 dBA |
| Fuel Consumption (Liquid Propane) (50% Load, BTU/hr)*** | 208,000 |
| Fuel Consumption (Natural Gas) (50% Load, BTU/hr)*** | 187,000 |
| Limited Warranty (Years)† | 10 |
**This generator is rated in accordance with UL (Underwriters Laboratories) 2200 (stationary engine generator assemblies) and CSA (Canadian Standards Association) standard C22.2 No.100-14 (motors and generators).
***Fuel consumption rates are estimated based on normal operating conditions. Generator operation may be greatly affected by elevation and the cycling operation of multiple electrical appliances - fuel flow rates may vary depending on these factors.
†See operator’s manual for complete warranty details.
| Category | Description |
|---|---|
|
Automatic Transfer Switches |
This device stands guard and senses when utility power flowing to your home is interrupted, then automatically turns on your Briggs & Stratton standby generator |
|
Power Management |
Make your backup power go further with a power management system. It prioritizes power for what you really need, reduces fuel costs and allows you to use a smaller-size generator to power your home Amplify Power Management Symphony® II Power Management |
|
Generator Monitoring Systems |
Finally, there’s no need to run outside to check on your home generator when a storm is looming. Briggs & Stratton monitoring systems are popular generator accessories that make it more convenient than ever to stay on top of your generator’s current status without ever leaving the comfort of your living room. InfoHub™ Wireless Generator Monitoring Remote System Status Panel for Generator Monitoring Basic Wireless Generator Monitor Wireless Router for Generator Monitoring |
|
Generator Maintenance Kits |
Keep your Briggs & Stratton home generator running at peak performance and ready when it's needed. |
|
Cold Weather Accessories |
Keep your Briggs & Stratton generator ready to perform like normal even when the temperature dips below 30°F outside. Your dealer can suggest the best generator cold weather kit for your system when your generator is installed. Learn more about the available options below. Home Generator Cold Weather Kits Engine Block Heater 240-Volt Internal Battery Warmer 240-Volt Internal Engine Oil Warmer |
Questions? Contact Us now!