Briggs & Stratton PowerProtect+ 22kW Standby Generator with Dual 200A/Split 400A Symphony Transfer Switch
$8,494.00
Factory Direct Freight Delivery
Estimated Lead Time
7–14 Days
Ships From
Briggs & Stratton distribution center, direct to your address
Delivery Type
LTL freight to your curb (delivered at truck-bed level)
Liftgate service will be added to your cart ($159)
Free LTL Freight
Authorized Dealer
Full Factory Warranty
30-Day Returns
Is Your Home Actually Protected When the Grid Goes Down?
You've watched the lights flicker, the sump pump go silent, and the freezer full of food start its slow countdown. A three-day outage isn't an inconvenience , it's a crisis. Running extension cords through cracked windows is a fire hazard, and most portable solutions can't touch a central air system, a well pump, and a refrigerator all at once.
Without a properly installed, code-compliant transfer switch, you're either living in the dark or risking back-feed that can kill a utility lineman working to restore your power. That's not a risk worth taking. The Briggs & Stratton PowerProtect+ 22kW Standby Generator with Dual 200A/Split 400A Symphony Transfer Switch eliminates all of it , automatic, whole-home protection that kicks in before you've even noticed the outage.
- 22kW of clean, stable power , enough to run a 5-ton central air system, well pump, refrigerator, lighting, and more simultaneously.
- Dual 200A / Split 400A Symphony SED transfer switch included , no guessing about compatibility, no separate purchase required.
- Fully automatic operation , the system detects a grid failure and transfers power within seconds, no manual intervention needed.
- 7-year limited warranty covering parts, labor, and travel , the longest coverage in its class, protecting your investment for the long haul.
- Vanguard commercial-grade engine , built for the duty cycle of a standby generator, not a weekend warrior machine.
- EnergyTrak remote monitoring , check system status, fuel levels, and run history from anywhere, 24/7.
PowerProtect+ 22kW Features & Performance
Best-in-Class Motor Starting Power
Starting a 5-ton central air conditioner is one of the hardest electrical loads a standby generator faces. The PowerProtect+ 22kW is rated to handle it without voltage sag or nuisance tripping. Your HVAC comes on clean, every time.
Vanguard Commercial-Grade Engine
The 993cc Briggs & Stratton Vanguard engine isn't borrowed from a lawn tractor. It's engineered specifically for the long, unattended run cycles that standby generators demand. Tighter tolerances, better oil management, and proven durability in commercial applications translate directly to reliability when your home needs it most.
Front-Facing Exhaust Design
Most standby generators exhaust toward the rear or sides, which limits installation placement and can damage landscaping or siding. The PowerProtect+ routes exhaust forward, giving your installer more flexibility and protecting the plants and structures around the unit.
DuraZen Enclosure & Eco-Cise Self-Test
The DuraZen weather-protection enclosure is built to handle freeze-thaw cycles, UV exposure, and driving rain without cracking or fading. Every week, the Eco-Cise mode runs a 16-second self-test to verify the engine starts and the transfer switch responds , quietly, automatically, and without interrupting your household.
Symphony SED Transfer Switch
The included Dual 200A / Split 400A Symphony SED Power Management Transfer Switch is engineered specifically for this generator. It handles whole-home load management intelligently, prioritizing critical circuits and shedding non-essential loads when needed. Code-compliant installation, clean wiring, and no back-feed risk.
See full specifications below for complete electrical and dimensional details.
Ideal Use Cases for the PowerProtect+ 22kW Bundle
- Whole-Home Backup for Large Residences: Homes with 3,000+ square feet, central HVAC, electric ranges, and multiple refrigerators need serious wattage. This system covers it all without circuit triage.
- Homes on Well Water: When the grid fails, so does your water supply , unless you have a generator that can start and sustain a well pump. At 22kW, this unit handles high-demand pumps without breaking a sweat.
- Home Offices and Remote Workers: A power outage that costs you a day of work or a client call is a real financial hit. Automatic transfer means your internet, workstation, and VOIP phone stay live without you touching anything.
- Medical Equipment Dependencies: CPAP machines, oxygen concentrators, and refrigerated medications can't wait for a portable generator to be dragged out and fueled. Automatic standby power is the only responsible solution.
- Electricians Installing for Clients: The Symphony SED switch is designed for clean, code-compliant installation. The front-facing exhaust and flexible placement options make the job faster and the inspection easier.
Not sure if this is the right fit for your panel configuration? Check our FAQs below or contact our power specialists , we're happy to walk through your load requirements before you order.
Why Choose the PowerProtect+ 22kW Over a Traditional Standby Generator Without an Integrated Switch
Buying a standby generator and a transfer switch separately sounds straightforward until you're reconciling amperage ratings, verifying compatibility, and hoping the installer doesn't find a mismatch on the day of installation. The PowerProtect+ 22kW bundle removes that risk entirely , the Symphony SED switch is matched, tested, and warranted as a system.
Compared to smaller 14kW or 16kW units, the 22kW output means you're not making hard choices about which circuits to protect. Central air, well pump, electric range, and lighting all stay on. You're not managing a partial-house solution.
Against portable generators in the same price range, there's no comparison on safety or convenience. No extension cords. No carbon monoxide risk from a unit running near an open door. No manual startup at 2 a.m. in a rainstorm. The PowerProtect+ starts itself, transfers power automatically, and shuts down when the grid returns.
The 7-year warranty covering parts, labor, and travel is the longest in its class and reflects Briggs & Stratton's confidence in the Vanguard engine platform. Most competitors offer 3-5 years, and many exclude labor after the first year.
PowerProtect+ 22kW Specifications
| Spec | Value |
|---|---|
| SKU | 040794 |
| Running Watts (Liquid Propane) | 22 kW |
| Running Watts (Natural Gas) | 22 kW |
| Running Amperage (Liquid Propane) | 91.7 A |
| Running Amperage (Natural Gas) | 91.7 A |
| Voltage | 120 / 240V |
| Circuit Breaker | 100 A |
| Engine Brand | Briggs & Stratton Vanguard Commercial-Grade |
| Engine Displacement | 993 cc |
| Transfer Switch | Dual 200A / Split 400A Symphony SED Power Management |
| Normal Operating Sound Level | 66 dB(A) |
| Fuel Consumption , LP (50% Load) | 217,000 BTU/hr |
| Fuel Consumption , Natural Gas (50% Load) | 194,000 BTU/hr |
| Assembled Length | 46 in. |
| Assembled Width | 27 in. |
| Assembled Height | 28 in. |
| Assembled Weight | 490 lbs. |
| Limited Warranty | 7 Years (Parts, Labor & Travel) |
What's in the Box
- PowerProtect+ 22kW Home Standby Generator (SKU 040794)
- Dual 200A / Split 400A Symphony SED Power Management Transfer Switch
- Installation documentation and owner's manual
Frequently Asked Questions About the PowerProtect+ 22kW Standby Generator
What size home can the Briggs & Stratton PowerProtect+ 22kW standby generator power during an outage?
The PowerProtect+ 22kW is well-suited for homes up to approximately 4,000-5,000 square feet with central HVAC, a well pump, multiple refrigerators, and standard lighting and appliance loads running simultaneously. At 22kW output on both natural gas and liquid propane, it delivers 91.7 amps at 120/240V , enough headroom to handle a 5-ton central air conditioner start-up, which is typically the most demanding load in a residential application. For homes with electric vehicle chargers or large electric ranges as primary loads, a load calculation with a licensed electrician is recommended before installation.
How does the Symphony SED transfer switch prevent back-feed into the utility grid?
The Dual 200A / Split 400A Symphony SED is an automatic transfer switch, meaning it physically disconnects your home from the utility grid before connecting generator power. This break-before-make design is a code requirement under NEC Article 702 and ensures that generator power never reaches the utility lines , protecting lineworkers and preventing equipment damage. The switch is included in this bundle and is factory-matched to the PowerProtect+ 22kW generator for verified compatibility.
Can the PowerProtect+ 22kW run on both natural gas and liquid propane, and does it switch automatically between fuels?
The PowerProtect+ 22kW is rated at 22kW on both natural gas and liquid propane, with identical running amperage of 91.7A on either fuel. Fuel type selection is set during installation and is not an automatic dual-fuel switching system , your installer will configure it for your available fuel source. Most homeowners connected to a municipal gas line use natural gas for its convenience; those in rural areas typically use a dedicated LP tank.
How loud is the PowerProtect+ 22kW standby generator during normal operation?
The PowerProtect+ 22kW operates at 66 dB(A) under normal load , roughly equivalent to a normal conversation or a window air conditioner at close range. The DuraZen enclosure contributes to sound dampening, and the front-facing exhaust design allows the unit to be positioned to direct noise away from windows and living spaces. Local ordinances vary, so confirm setback and noise requirements with your municipality before finalizing placement.
What does the 7-year warranty on the PowerProtect+ 22kW actually cover, and how does it compare to other standby generators?
The 7-year limited warranty covers parts, labor, and travel , meaning Briggs & Stratton will send a technician to your location for covered repairs at no additional cost during the warranty period. Most competing standby generators in this class offer 3 to 5 years of coverage, and many exclude labor or travel after the first year. Purchasing from an authorized dealer like Mighty Generators is required to activate and maintain full warranty coverage.
Is the PowerProtect+ 22kW the right standby generator for a home with a split 400A electrical service?
Yes. The included Symphony SED transfer switch is specifically designed as a Dual 200A / Split 400A unit, making this bundle the correct solution for homes with a 400A service entrance split across two 200A panels. This configuration is increasingly common in larger homes with EV chargers, large HVAC systems, or significant electrical upgrades. Your licensed electrician will connect the Symphony switch to both panels, providing whole-home coverage from a single generator. Still have questions? Contact our power specialists before you order.
Warranty & Authorized Dealer Information
The Briggs & Stratton PowerProtect+ 22kW Standby Generator carries a 7-year limited warranty covering parts, labor, and travel , the most comprehensive coverage in its class. This warranty is valid only when the product is purchased from an authorized Briggs & Stratton dealer and installed by a licensed electrician according to local codes and manufacturer guidelines.
Order from Mighty Generators, an authorized Briggs & Stratton dealer, for full warranty coverage, expert support, and fast shipping. We don't just process orders , our team understands standby power systems and can help you confirm compatibility, review your load requirements, and connect you with installation resources in your area.
Questions? Our power specialists are here to help , contact us before or after your purchase. Getting it right from the start is always easier than fixing it later.