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The Briggs & Stratton 20kw standby generator system (200a service disconnect + ac shedding) is available for purchase today.

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Briggs & Stratton 20kW Standby Generator System (200A Service Disconnect + AC Shedding)

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Briggs & Stratton Electric Generators and AccessoriesModel: 40346
(Based on expert analysis, manufacturer ratings and customer reviews)

4.9 out of 54.9 out of 54.9 out of 54.9 out of 54.9 out of 5
21 Reviews
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Ships Monday, Dec 5th

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  • Features
  • Specs
  • 6
    Q&A 
  • 21
    Reviews
  • Articles
  • Shipping
  • Accessories
Grade
Airooled Standby Generators
Style
Watts
20 kW
Rated Watts
Voltage
120/240 Single-Phase
Fuel
Engine


Product Video Disclaimer: "PED is not responsible for any variances from the product in this video and the item you purchase. Please review all product specs prior to purchase."

Fully Automatic Operation - Includes Automatic Transfer Switch

20kW (LP) /18.4kW (NG) Automatic Start Power Generator
Runs off LP or Natural Gas - no gas cans to fill and store

993cc Briggs & Stratton V-Twin Commercial Grade Vanguard Engine
Provides years of long lasting, reliable standby power

Symphony II Transfer Switch (2 x 5-Ton AC)
Computer controlled load management power switching
Expand your generators range by prioritizing powered circuits

Galvanneal Steel Enclosure
Automotive rust proofing paint process reduces corrosion

Front Air Ventilation
Pushes engine exhaust out the front, away from the home

Flexible Placement (Please Verify Local Building Codes)
Tested against tough National Fire Protection Agency standards
Can be placed as close as 18” from structure

200-Amp Service Entrance Rated Automatic Transfer Switch (71068)
Offers ability to power all circuits without a sub-panel
Rated at 200-Amps @ 240-Volts (NEMA 3R)

Turnkey Extras: Auto Battery Charger & Hour Meter
Industry Leading 5-Year Parts, Labor & Travel Warranty
Engine
Engine Brand
Briggs and Stratton Vanguard
CC
993 CC
Consumer Engine Warranty
5 Years
Engine RPM
3600 RPM
Low Oil Alert/Shutdown
Yes
Product Specs
Voltage
120/240 Single-Phase
Frequency
60 Hertz
Surge Watts
20000 Watts
Rated Watts
20000 Watts
Fuel Type
LP/Natural Gas
NG Power Capacity
18000 Watts
LP Power Capacity
20000 Watts
NG Fuel Consumption @ 50% Load
187 (BTU: 187,000 BTU/HR) ft3/hr
NG Fuel Consumption @ 100% Load
260 (BTU: 260,000 BTU/HR) ft3/hr
LP Fuel Consumption @ 50% Load
2.3 (BTU: 208,725 BTU/HR) gallons/hr
LP Fuel Consumption @ 100% Load
3.75 (BTU: 340,313 BTU/HR) gallons/hr
Rated Amps
83 @ 240 Volts (Single Phase) Amps
Decibel Rating @ 7m
68.4 dbA
Transfer Switch
Automatic (Included)
Transfer Switch Amperage
200-Amps
Enclosure
Steel
Battery
Not Included (540 CCA)
A/C Ton Rating
2 x 5-Tons
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
Overview
Made in USA
Yes
Weight
484 Pounds
Product Length
50.5 Inches
Product Width
34 Inches
Product Height
31 Inches
Consumer Warranty
5 Years
UPC
011675403461
Model
40346

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  6 Questions
Q: Is the transfer switch pre-wired?
by Anthony Perella from Virginia on July 12, 2014

A: The whole house switches are not prewired.
by Mike, Product Expert
Q: Why does the B&S 20kw recommend changing the oil every 20 hours?
by Eric from Maine on January 04, 2014

A: Per the owner's manual here is the oil maintenance schedule...

FIRST 5 HOURS:
-CHANGE ENGINE OIL
EVERY 8 HOURS OR DAILY:
-CHECK ENGINE OIL LEVEL
EVERY 100 HOURS OR ANNUALLY:
-CHANGE ENGINE OIL AND FILTER

The "Every 8 Hours or Daily" list is during long run times. When the units run their weekly exercise they only run for 12-15 minutes, so the oil does not need to be checked or changed unless the 100 hour or annual mark comes up.

The generators internal controller will tell you when the oil needs to be changed. However, we like to recommend checking the oil every spring and fall and change as needed.

by Mike, Product Expert
Q: How many BTU is 20 kw generator?
by Mladen Kovatchev from New York on June 26, 2013

A: 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.

Full Load - 260,000 BTU/HR
1/2 Load - 187,000 BTU/HR

Information provided is from the manufacturers specification sheet available on our website under the specs tab....

Spec Sheet

by Mike, Product Expert
Q: I have model 40346 standby generator what battery should i buy for it?
by Michael Ditporo from New York on February 08, 2013

A: The Briggs & Stratton 20kW Home Standby model 40346 requires a Group 26R with a minimum of 525 CCA (Cold Crank Amps).

by Mike, Product Expert
Q: Where does unit exhaust? How close can be plced from house? Will exhaust be so hot as to cause any problems close to home? Where does aair enter and leave?
by Kerry Woodroof from Virginia on February 05, 2013

A: The new style Briggs standby generators exhaust out the front and the intake is on the rear of the unit.

You can review the installation location on the install drawing available on the site under the specs tab....

Installation Drawing

by Mike, Product Expert
Q: wanted for my 200 amp service:
LP/gasoline bi-fuel
quiet
whole house

by Mike Bilello from New York on December 05, 2012

A: Sorry, there are no LP/Gasoline home standby generators available. The only option would be one of the Winco Tri-Fuel portable generators which operate on NG, LP or Gasoline....

Portable Tri-Fuel Generators

by Mike, Product Expert
Briggs & Stratton 40346 Reviews & Ratings
Overall Rating
Features
5/5
Quality
5/5
Performance
5/5
Value
5/5
Overall
4.9 out of 54.9 out of 54.9 out of 54.9 out of 54.9 out of 5
Pros
Price (6)
High Quality (5)
Features (5)
Easy To Use (5)
Quiet (4)
Cons
Absolutely No Cons (1)
100% of respondents would recommend this product to a friend
21 Reviews  Sort by 
 
Mike, the Generator Expert
Electric Generator Expert

Product Expert
Total Reviews
103 Reviews
Total Helpful Votes
8902 Helpful Votes
Electric Generators Direct Recommended

Top 20kW Standby Generator

The Briggs & Stratton 40346 is an ideal generator for medium to large homes with 200-amp service and at least one central air conditioner.

The service disconnect automatic transfer switch features AC shedding, allowing you to manage two central AC’s and run them both when the generator has enough available power. This will make your next hot summer power outage much more bearable.

Brand loyal consumers love the fact the 40346 comes equipped with a reliable Briggs & Stratton... more
Mike Recommends This Model
Was this review helpful?
211
John C.
Newton, KS
Purchased from Electric Generators Direct
Purchased 4/8/15
Total Reviews
4 Reviews
Total Helpful Votes
22 Helpful Votes
Most Helpful Positive Review
REVIEWED
DEC.
05
2015
5 out of 55 out of 55 out of 55 out of 55 out of 5
Happy With Installation
I had professional electricians do the installation and it was very straight forward. Have not needed it yet, but once a week it does a start-up and diagnostics with no problems.
John Recommends This Briggs & Stratton Product
Was this review helpful?
70
William S.
Candor, NC
REVIEWED
NOV.
21
2016
5 out of 55 out of 55 out of 55 out of 55 out of 5
Installed Sat. Nov 19,2016, Power Out On Monday 11/ 21/16
I would definitely recommend this to anyone, great product, excellent service, that is why I bought Briggs and Stratton.
What I'm saying is I purchased peace of mind and protection for my family and my home.
Pros: Price, Features, Easy To Use, High Quality, Quiet, I'd Buy It Again, Reliable
William Recommends This Briggs & Stratton Product
Was this review helpful?
00
Robert M.
Middlesex, NC
Purchased from Electric Generators Direct
Purchased 1/6/16
REVIEWED
FEB.
25
2016
4 out of 54 out of 54 out of 54 out of 54 out of 5
Excellent Product
My unit is new. I have not had the opportunity to use other than when we installed and ran test. It worked excellent powering entire house including heat pump. We started stove, heat, water heater and well pump. Unit did not appear to struggle any at all. Unit is set to operate once each week at 9:00 AM. It is much closer to house than portable unit I used in the past. Very little noise. It operates with less noise than I anticipated. So far I am well pleased with this purchase. I feel that we... more
Robert Recommends This Briggs & Stratton Product
Manufacturer Response
Brand Rep
Robert,
Hello Robert!

Congrats on your new 20kW Generator! Hopefully since you installed this in February you've been able to experience an outage and how little it effects your daily life! It's a great thought knowing when the rest of the neighborhood goes dark you can still live uninterrupted.

Thanks so much for choosing us and we really appreciate your review and continued business!

Best Regards,

The Briggs & Stratton Standby Team
more
Was this review helpful?
41
Gary I.
Muscatine, IA
Purchased from Electric Generators Direct
Purchased 11/26/15
REVIEWED
JAN.
20
2016
5 out of 55 out of 55 out of 55 out of 55 out of 5
Briggs & Stratton 20kw Standby Generator System (200a Service Disconnect + Ac Shedding) Review
The installation was generally seamless. I was able to do much of the labor myself. I did have my HVAC contractor attach the NG regulator and line, and had a qualified licensed electrician complete the wiring.

Nice unit, I like the wireless monitor and the load shedding modules for the Symphony II system that B & S uses. The only question I have is why they feel it is necessary to run an exercise cycle for 20 minutes every week. I would think that 10 minutes every 2 or 4 weeks would... more
Pros: Price, High Quality, Features, I'd Buy It Again
Gary Recommends This Briggs & Stratton Product
Was this review helpful?
31
Stanley F.
Baltimore, MD
Purchased from Electric Generators Direct
Purchased 6/28/16
Total Reviews
2 Reviews
REVIEWED
AUG.
25
2016
5 out of 55 out of 55 out of 55 out of 55 out of 5
Full House Power, And Relatively Quiet
After 30 years of using gasoline powered generators, we got a nice income tax refund. Decided to invest in a natural gas, whole house generator. Installation was easy and problem free. Weekly self test with InfoHub makes great sense. We said that the cost of a really nice vacation was the cost of the generator and labor to install it. With the first blackout, we are now on vacation and no need to hunt for gas or worry about picking which items that need to be powered up.

We are very... more
Stanley Recommends This Briggs & Stratton Product
Manufacturer Response
Brand Rep
Stanley,
Thank you so much for your great review of our 20kW Standby Generator! We're happy to hear it's kept your home up and running through the latest outages. Having a standby generator is a little like a vacation - the less work you have to do the better! We hope you continue to enjoy daily life without the hassles of refilling and plugging in. Cheers!
more
Was this review helpful?
11
Jacob
Woodmere, NY
Total Reviews
8 Reviews
Total Helpful Votes
238 Helpful Votes
REVIEWED
FEB.
10
2013
5 out of 55 out of 55 out of 55 out of 55 out of 5
Very Good Generator. Very Good Value
I just bought and installed this Generator Myself and Installed it with an Electrician. Much of the installation is DIY, but You Need an Electrician to Run the Service Entrance Cable to the Transfer Switch First and then to the Fusebox Second. You definitely need an expert for that, because 240V at the service entrance can kill you.

The rest of the wiring is easy. I Bundled together Romex 4/3 with Ground, 12/3 with ground, and 18/5 sprinkler wire.T his generator has the well regarded... more
Was this review helpful?
11923
Michael
Total Helpful Votes
64 Helpful Votes
REVIEWED
MAR.
03
2013
5 out of 55 out of 55 out of 55 out of 55 out of 5
Briggs Vs Generac
First thing I want to say is, Don't DIY, GET A LICENSED ELECTRICIAN! I had 2 journeymen and 2 Electrician's in training, that makes four to pick up this heavy monster. The Generac is lighter and smaller size. The Geneac battery is very hard to install inside the unit compared to the Briggs. After they got in out of the trailer two men stayed and the other two finished the job. It took 4.5 hours and they do this for a living.

The Briggs runs smooth and very quite its putting out a very... more
Was this review helpful?
6410
Monty H.
Mays Landing, NJ
Purchased from Electric Generators Direct
Purchased 6/19/13
Total Reviews
2 Reviews
Total Helpful Votes
28 Helpful Votes
REVIEWED
AUG.
25
2013
5 out of 55 out of 55 out of 55 out of 55 out of 5
Great Value
Bought it in June just got it all hooked up with propane and electrically connected Aug 23. Beautiful piece of equipment, started right up and does all the auto tricks it is supposed to do and is relatively quiet. Did all the manual work myself mixed my own concrete for pad, mounted the transfer switch and dug trench and opened hole in the wall. Therefore I only had to pay for the electricians professional expertise. I found a SUPERB group of electricians called NOREASTERN ELECTRIC who did a... more
Pros: Features, Easy To Use, Quiet, Price
Monty Recommends This Briggs & Stratton Product
Monty Would Recommend Electric Generators Direct To A Friend
Web Site
5/5

Service
5/5

Shipping
5/5
"Best price around, excellent service and fast helpful delivery. Great to do business here."
 more
Was this review helpful?
264
Richard T.
Forest Hill, MD
Purchased from Electric Generators Direct
Purchased 5/14/14
Total Helpful Votes
22 Helpful Votes
REVIEWED
JUL.
17
2014
5 out of 55 out of 55 out of 55 out of 55 out of 5
Quality And Value
I had been considering a whole house generator for sometime. Finally I decided to make the investment and started shopping in my local area to get information on what was involved in purchasing and installing a whole house generator. What an eye opening experience. After getting several prices on the generator, I looked on-line and found the P.E.D. website. I couldn't believe the difference in their price and my local retailers. I called the 800 number to get more information.

The Rep I... more
Pros: Price, Features, Easy To Use, High Quality
Richard Recommends This Briggs & Stratton Product
Was this review helpful?
223
Trent
Solomon, KS
Total Helpful Votes
21 Helpful Votes
REVIEWED
APR.
22
2014
5 out of 55 out of 55 out of 55 out of 55 out of 5
Briggs Vanguard Engines Are Amazing
The install went smooth, and everything worked perfectly! It started on the 2nd attempt (I'm sure there was a little air in the 1" gas line that I had to run about 13ft from my meter) It fired right up and the transfer switch switched over about 20 seconds later. I have a fairly large home, and it had no problem running everything. I put it thru a couple tests after it had run about 30 minutes. I turned on my Clothes dryer, 4 burners on the stove, a 3ton Central air unit, and of course... more
Pros: Price, Quiet, Exceeded Expectations, High Quality
Cons: Absolutely No Cons
Trent Recommends This Briggs & Stratton Product
Trent's Experience With Electric Generators Direct
Web Site
5/5

Service
5/5

Shipping
5/5
"I am very very happy with my purchase of the Briggs & Stratton 20kw Generator. It far exceeded my expectations. It arrived very fast from electric generators direct. I ordered it on Friday and it arrived the following Thursday, the truck driver was super nice."
 more
Was this review helpful?
212
Rich A.
Ambler, PA
Purchased from Electric Generators Direct
Purchased 11/12/12
Total Reviews
2 Reviews
Total Helpful Votes
22 Helpful Votes
REVIEWED
SEP.
18
2014
5 out of 55 out of 55 out of 55 out of 55 out of 5
Follow Up
Best thing I ever bought!!! We got hit multiple times with power outages and for multiple days at a time and it kept the entire house running without a burp. Just back to order my yearly maintenance kit before this winter comes again. The feeling of security having something like this is worth every penny!!
Pros: Easy To Use, High Quality, Durable, Reliable
Rich Recommends This Briggs & Stratton Product
Was this review helpful?
133
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  • Ships via Semi-Truck
  • Requires a loading dock or forklift
  • Free to Lower 48 States
We currently CANNOT ship this product to Alaska, Hawaii or any destination outside of the United States
Priority Shipment
  • Faster Delivery Times
  • Ships Same Business Day
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  • $50 Service Charge
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Shop for the Briggs & Stratton 20kW Standby Generator System (200A Service Disconnect + AC Shedding) at Electric Generators Direct. Research Briggs & Stratton 011675403461 standby air-cooled generators online. Find Briggs & Stratton 40346 standby air-cooled generators & 40346 40305Pack-B features and specifications. Get the best deal; compare Briggs & Stratton 40346 prices now. Buy the 40346 direct and save.