Experience elite whole-house backup protection and automated reliability utilizing the Briggs & Stratton 22kW PowerProtect+ Series Standby Generator (Model 40787). Built as a standalone generator unit where the automatic transfer switch is sold separately—allowing you to select a recommended 100-amp, 150-amp, or 200-amp ATS configuration—it automatically restores electrical service seconds after utility power fails.
Propelled by a commercial-grade Vanguard 993 cc OHV engine featuring a cast iron sleeve operating at 3600 RPM, it delivers a full 22kW of power capacity on either natural gas or liquid propane. Engineered with an ultra-durable aluminum enclosure rated to withstand winds up to 186 MPH, it combines simplified component access, quiet operation, and the longest, most comprehensive standard warranty in its class covering parts, labor, and travel for 7 full years.
Key Features
- Briggs & Stratton 22kW PowerProtect+ Series Standby Generator Unit
- ATS Sold Separately (Compatible with 100 Amp, 150 Amp, or 200 Amp ATS Systems)
- Vanguard Commercial Grade 993 cc OHV Engine with Cast Iron Sleeve
- Full 22kW Power Capacity on Natural Gas or LP Propane
- Automatically Restores Power Seconds After an Outage
- Sleek, Appealing Design That Fits Into Neighborhood Landscapes
- Easy Access to Major Components and Maintenance Items
- Heavy-Duty Aluminum Enclosure Rated to 186 MPH
- UL-2200 Listed and Proudly Made in the USA
- Industry-Leading 7-Year Consumer Warranty Covering Parts, Labor, and Travel
Product Specifications
| Manufacturer | Briggs and Stratton |
|---|---|
| Model Number | 40787 |
| Series Name | PowerProtect+ |
| Type | Standby Generator (ATS Sold Separately) |
| Made In USA | Yes |
| Rated Watts | 22 kW (NG Power Capacity: 22kW / LP Power Capacity: 22kW) |
| Rated Watts Filter | 20 to 29 kW |
| Rated Amps | 91.7 Amps |
| Voltage & Filter | 120/240 Volts Single Phase (120/240 Volts) |
| A/C Ton Rating | 5-Ton |
| Enclosure | Aluminum Enclosure (Rated to 186 MPH Wind Resistance) |
| UL Listed | UL-2200 |
| Decibel Rating | 62 dBA Low Idle / 66 dBA Normal Operation |
| Generator Weight | 490 Pounds |
| Generator Dimensions (L x W x H) | 46L x 27W x 28H Inches |
| Starting System | Automatic |
| Low Oil Alert | Low Oil Shutdown |
| Mainline Breaker | 100 Amps |
| Battery Requirement | 12-Volt, Group 26 or 51, 540 CCA |
| Engine Brand | Vanguard Commercial Grade OHV |
| Engine Size & RPM | 993 cc | 3600 RPM (Cast Iron Sleeve: Yes) |
| Cooling System | Air Cooled |
| Alternator Type & Freq | Synchronous, Self-Excited, Rotating Field | 60 Hz (Auto Voltage Regulation: Yes) |
| Fuel Type & Filter | Natural Gas or LP Propane (Natural Gas or Propane) |
| Fuel Gauge | No |
| NG Consumption | Full Load: 281 Cubic Feet per Hour | Half Load: 194 Cubic Feet per Hour |
| LP Consumption | Full Load: 4.1 Gallons per Hour | Half Load: 2.4 Gallons per Hour |
| Transfer Switch Model | Not Included (Requires a compatible 100 amp, 150 amp, or 200 amp ATS) |
| Consumer Warranty | Briggs and Stratton 7-Year Limited Warranty Covers Parts, Labor, and Travel for the Entire Term |