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Briggs & Stratton 40346 20kW Standby Generator w/ 200amp Symphony II Switch #40346

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SRP: $6,199.00
BNE PRICE: Replaced by 40621
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Manufacturer: Briggs & Stratton
Part Number: 40346


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20kW w/200 amp Symphony II Whole House Power Transfer Switch
Generator 40336 + 71068 Transfer Switch
 Stop worrying about losing power in your home with the 20kW¹ standby generator system. The 20kW¹ seamlessly provides backup power to your home within seconds of a power outage.

Lights, TVs, washer and dryer — even two 5-ton AC units — are easily and automatically powered by a dependable commercial-grade Vanguard™ engine and new, patented Symphony® II Power Management technology. The 20kW¹ system also comes with a 4-year limited warranty for unmatched support.

Symphony II Power Management

Whole-house power is now a whole lot more affordable with Briggs & Stratton’s new Symphony® II Power Management system. As the most customizable Power Management system anywhere, this patented technology is the easiest way to give your family unprecedented peace of mind and protection during a power outage.


What Symphony® II Does

Symphony® II Power Management automatically balances the power needs of your home’s electrical loads — including high-wattage items like air conditioning units, electric stoves and electric dryers — to give your family uninterrupted, whole-house power with a more affordable home generator.


How Symphony® II Works

With Symphony® II Power Management, you can select up to eight high-wattage appliances based on your family’s specific power needs. It then manages the distribution of power from the generator to those appliances — automatically. This load management ensures the generator won’t overload so your family can continue with its daily routine uninterrupted.


Additionally, the Symphony® II Power Management transfer switch is wired into your home’s existing wiring, where it monitors your home’s electrical circuits, so you save even more on the cost of installation.


How You Save with Symphony® II

Symphony® II Power Management lets you purchase a smaller, more affordable home generator system while maintaining the comfort of whole-house power. With Symphony® II Power Management, you’ll benefit from:


·         A reduced initial investment

·         Lower fuel costs

·         Lower installation costs


(Battery Not Included)
Series Features
Features Benefits

Quick Response

Automatically powers your home in seconds after sensing a power outage.

Reliable Engine Power

Briggs & Stratton standby generators are powered by commercial-grade Vanguard™ engines that are design-engineered to dependably take on the most demanding jobs.

Flexible Placement

Tested against tough National Fire Protection Agency standards, Briggs & Stratton 20kW1 standby generators can be placed as close as 18” from the home providing more placement options in your yard – perfect for tight lot lines3.

Manages Power to All of Your Appliances

Managed Whole House Power system powers your household appliances plus up to 2 air conditioners.

Durable Enclosure

Rust-resistant, Galvanneal steel enclosures are made from the same materials and paint process used in the automotive industry, resulting in years of protection against chips and abrasions.

4 Year Limited Parts and Labor Warranty2

At Briggs & Stratton, we stand behind our warranty and make it easy for our customers to work with us.

Transfer Switch

Flexible, indoor or outdoor, transfer switch placement make it convenient to install. All of our weather-resistant transfer switches are NEMA 3R rated for maximum protection against dirt, rain, sleet and snow.

Package Includes

  • 200 Amp Automatic Transfer Switch
  • Patented A/C Power Control Module to power up to two load dependent, air conditioners
  • Installation Base
  • Battery Charger
  • Hour Meter 
1 This generator is rated in accordance with UL (Underwriters Laboratories) 2200 (stationary engine generator assemblies) and CSA (Canadian Standards Associations) C22.2 No. 100-04 (motors and generators). 2 Warranty details available at 3 Installations must strictly comply with all applicable codes, industry standards, laws and regulations. Running engines give off carbon monoxide, an odorless, colorless, poison gas so it is important to keep exhaust gas away from any windows, doors, ventilation intakes or crawl spaces. Carbon monoxide detectors must be installed and maintained in your home.
20kW Standby Generator w/ 200 Amp Automatic Transfer Switch
Running Watts (LP)* 20,000
Running Watts (NG)* 18,400
Engine Brand Briggs & Stratton
Engine Series Vanguard
CC 993
Operation Fully Automatic
Running Amps 83.3 (LP) 75.0 (NG)
Fuel Consumption (Cubic Feet per Hour @ 1/2 Load) 2.31 gal/hr (LP); 187 ft3/hr (NG)
Fuel Consumption (Cubic Feet per Hour @ Full Load) 3.75 gal/hr (LP); 260 ft3/hr (NG)
Overcrank Protection Yes
Length (in) 48
Width (in) 34
Height (in) 31
Weight (lbs) 500
Warranty (Product) 4 Year Parts and Labor
*NG = Natural Gas; LP = Liquid Propane. **Fuel consumption rates are estimated based on normal operating conditions at 1/2 load. 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.
This generator is not designed for prime power application

Battery Information (Battery Not Included)
Now you no longer need the more expensive  glass mat battery for the new Briggs & Stratton 16kW or 20kW.

A lead acid will do. Choose the battery size based on whether you will install the cold weather kit, tested to -25 below.

 See details below:


Briggs & Stratton Cold Weather Kit #6231
BNE PRICE: $249.00
Briggs & Stratton Cold Weather Kit #6231
Fits New 16kw & 20kw Units
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