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The Briggs & Stratton 20kW PP20 generator is the workhorse of the Power Protect lineup - its also there when you need it most, providing more power on natural gas than any other generator in its class. its commercial-grade engine, durable construction, and best-in-class warranty make this a generator perfect for large homes with demanding power needs. This bundle includes a 200-amp Symphony® II whole-house transfer switch for hassle-free power management.
Features
| Product Category | Generator - Standby |
|---|---|
| Weight | 435 Pounds |
| Made in USA | Yes |
| Consumer Warranty | 6 Years |
| Product Style | Standby Generator |
| Product Length | 46.5 Inches |
| Product Width | 26.8 Inches |
| Product Height | 28.4 Inches |
| Voltage | 120/240 Single-Phase |
| Frequency | 60 Hertz |
| Rated Watts | 20000 Watts |
| Fuel Type | LP/Natural Gas |
| NG Power Capacity | 20000 Watts |
| LP Power Capacity | 20000 Watts |
| NG Fuel Consumption @ 50% Load | 187 ft³/hr |
| NG Fuel Consumption @ 100% Load | 260 ft³/hr |
| LP Fuel Consumption @ 50% Load | 2.3 gallons/hr |
| LP Fuel Consumption @ 100% Load | 3.7 gallons/hr |
| Rated Amps | 83.3 Amps |
| Decibel Rating @ 7m | 68 |
| Hour Meter | Yes |
| Transfer Switch | Automatic (Included) |
| Transfer Switch Amperage | 400-Amps |
| Battery | Not Included |
|---|---|
| Enclosure | Aluminum |
| Circuit Breaker Size | 100 Amps |
| Mounting Pad | Steel (Included) |
| Transfer Switch Style | Service Disconnect |
| ATS Load Prioritizing | Sold Separately |
| ATS Load Shedding | Built-In |
| ATS Service Disconnect | Yes |
| Cooling System | Air Cooled |
| UL Listed | Yes |
| Grade Type | Emergency |
| Prime Power | No |
| Engine Brand | Briggs and Stratton Vanguard |
| Starting System | 12v Auto Start |
| Consumer Engine Warranty | 6 Years |
| Engine RPM | 3600 RPM |
| Low Oil Alert/Shutdown | Yes |
User's Manual
Brochure
The Briggs & Stratton 040677 20kW Standby Generator LP/NG with Dual 200 Amp Automatic Transfer Switch (WiFi) is a reliable and advanced solution for home and small business backup power needs. Here’s why it stands out:
A top choice for homeowners and small businesses looking for a robust and technologically advanced standby generator solution.
Q: What is the power output of this standby generator?
A: It provides up to 20 kilowatts (kW) of power for whole-home backup or small business needs.
Q: Does it support both LP (Liquid Propane) and NG (Natural Gas)?
A: Yes, it is compatible with both LP and NG fuel sources.
Q: What type of transfer switch does it come with?
A: It includes a Dual 200 Amp Automatic Transfer Switch with WiFi capabilities for remote monitoring and control.
Q: Is this generator suitable for whole-home use?
A: Yes, it is designed for residential whole-home backup, ensuring seamless power during outages.
Q: What are the main features?
A: Briggs & Stratton engine, 20kW power output, dual 200 Amp automatic transfer switch, WiFi monitoring, and weather-resistant housing.
Q: Can it be monitored remotely?
A: Yes, with WiFi capability, the generator can be monitored and managed remotely through an app or web interface.
Q: How long can it run on LP/NG?
A: The runtime depends on fuel supply, load, and usage, but it is designed for extended standby use.






