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Briggs & Stratton 20kW Standby Generator System (Steel) (400A Split Service Disconnect + AC Shedding)
Model:
40623
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Features

Briggs & Stratton 20kW Standby Generator System (Steel) (400A Split Service Disconnect + AC Shedding)
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."
- B&S 20kW (LP) / 18kW (NG) Air-Cooled Standby Generator System
- Automatically powers your home in seconds after sensing an outage
- 400-Amp Service Entrance Auto Transfer Switch (71057) (NEMA 3R)
- A UL Listed solution for 2 x 200-Amp Service Breakers
- Easy install - one less switch, less wiring/time, fewer expenses
- Smaller Transfer Switch
- A cost effective, cleaner looking installation
- Symphony® II Power Management (Up To 8 High-Wattage Loads)
- Automatically manages & balances loads while preventing overload
- Uninterrupted, whole house power, with a smaller generator
- Runs on Natural Gas (NG) or Liquid Propane (LP)
- Simple field conversion for easier installations
- 993cc Commercial-Grade Vanguard® Air-Cooled Engine
- Full-pressure lubrication system w/ spin-on oil filter
- Advanced debris management for enhanced durability
- Briggs & Stratton Alternator - Less Than 5% THD
- Improved frequency (HZ) regulation for cleaner power
- Automatic Voltage Regulation (+/-1%)
- Helps prevent damaging voltage spikes
- Flexible Placement (Please Verify Local Building Codes)
- Tested against tough National Fire Protection Agency standards
- Can be placed as close as 18" from structure
- New Upgraded Control System
- LCD display w/ multi-line text graphics
- Low Idle mode for quieter exercise
- Independent 3-Stage Battery Charger
- Provides optimized charge for longer battery life
- Automotive-Grade Galvaneal Steel Enclosure
- Helps minimize corrosion & protects it from the elements
- 5 Year Limited Best in Class Warranty
- Covers parts, labor, and travel for 5-Years
- Assembled & Engineered In The USA
- From foreign and domestic parts
- Requires Battery (Sold Separately)
California residents see
WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov.
For more information go to: www.p65Warnings.ca.gov
Specifications
40623

Overview
Weight
500 Pounds
Made in USA
Yes
Consumer Warranty
5 Years
Product Style
Standby Generator
Product Length
50.5 Inches
Product Width
33.8 Inches
Product Height
30.6 Inches
UPC
011675406233
Product Specs
Voltage
120/240 Single-Phase
Frequency
60 Hertz
Auto Voltage Regulation
Yes
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 ft³/hr
NG Fuel Consumption @ 100% Load
260 ft³/hr
LP Fuel Consumption @ 50% Load
2.24 gallons/hr
LP Fuel Consumption @ 100% Load
3.65 gallons/hr
Rated Amps
83.3 Amps
Decibel Rating @ 7m
Decibel Rating @ 7m
Sound levels are measured in decibels (dB). The lower the decibel rating, the less noise the product makes. As an example, a ticking watch is 20 dB while on the other end of the scale, a lawn mower is around 90 dB.
64
Transfer Switch
Automatic (Included)
Transfer Switch Amperage
400-Amps
Battery
Not Included (540 CCA)
Enclosure
Steel
Circuit Breaker Size
100 Amps
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
Grade Type
Emergency
Engine
Engine Brand
Briggs and Stratton Vanguard
Starting System
12v Auto Start
CC
993 CC
Consumer Engine Warranty
5 Years
Engine RPM
3600 RPM
Low Oil Alert/Shutdown
Yes
Reviews
(6)
Briggs & Stratton 40623 Reviews & Ratings

Manufacturer Review
New 20kW Generator
By Tim Land
Briggs & Stratton Territory Sales Manager
Review Posted 10/21/2019
From the #1 producer of gasoline engines in the world comes the next big thing in standby generators. Our new lines of standby generators offer a new upgraded control system that features multi-line text and graphics, programmable exercise times, and a low speed idle mode to save fuel and reduce noise. With a new AVR that communicates directly with the controller to optimize generator performance and deliver tighter voltage control. Our new three stage battery charger (bulk, absorption and float stages) ensures that your battery is always ready to start the engine when in need. The upgraded alternator delivers more motor starting capability allowing you to power more for less!
Was this review helpful?
Rating Breakdown
5/5
5/5
5/5
5/5
DO NOT PURCHASE THIS UNIT.
By Randy W.
Griffin, Georgia
Review Posted 01/02/2022
Do not purchase this unit. I purchased this unit in July 2019, and the engine has not functioned properly since I purchased it. I have spent countless hours on the phone with no customer service. The company cannot or will not provide any technical assistance or provide me with a dealer that can work on an LP powered engine.
Randy W. Does Not Recommend This
Was this review helpful?
Expert Response
To locate a service dealer in your area... Briggs & Stratton Dealer Locator

Jared G.
eComfort Product Expert
Manufacturer Response
I'm sorry to hear your unit has not been working properly and you have not received satisfactory help. I greatly appreciate the feedback and would very much be interested in further delving into the issue here as this this unit purchased in 2019 would still be very much under the warranty time frame and we would never right someone off in this fashion. So that I can I look into what has been done so far and to see how we can rectify this issue, please contact our customer support center at 800-743-4115 and request to speak to Nick.

Rating Breakdown
1/5
1/5
1/5
1/5
Cons:
Low Quality, Unreliable

This Is A Great Product
By Debbie V.
SOUTH PITTSBURG, Tennessee
Purchased 11/08/2021 |
Review Posted 12/05/2021
Works great. Very pleased.
Debbie V. Recommends This
Was this review helpful?
Rating Breakdown
5/5
5/5
5/5
5/5
Pros:
Quiet, Price, Durable, Exceeded Expectations
Happy Customer After 2 Years
By Chris M.
Hamilton, Virginia
Review Posted 07/12/2021
I bought this kit along with a few power shedding modules, a generator pad, and a battery heater about 2 years ago. It has worked flawlessly. We've had a few small power outages that have lasted a few hours and it just plain works. We live in a rural area (not high priority for power restoration during an outage) and this gives my family peace of mind if I happen to be away from home. Maintenance has consisted of an oil/filter change each year. It's also relatively quiet in the included enclosure. I would highly recommend it as a VERY cost effective solution for folks with 400A service split into a pair of 200A panels. Plug and play.
Chris M. Recommends This
Was this review helpful?
Rating Breakdown
5/5
5/5
5/5
5/5
Pros:
Features, Easy To Use, Quiet, Price

Best Generator!!!
By Maria C.
Weslaco, Texas
Purchased 03/23/2021 |
Review Posted 04/14/2021
Feeling confident that when power goes out, our house will be covered and we will not have to worry about damages or losses because our home is completely covered.
Maria C. Recommends This
Was this review helpful?
Rating Breakdown
5/5
5/5
5/5
5/5
Pros:
Durable, Features, Reliable, High Quality
This Seams To Be A Very Good Product!
By Charles C.
Fairview village, Pennsylvania
Review Posted 01/28/2020
Unit is now three yrs. old. It does not always start the first time on the exercise cycle, had to replace battery recently, just ordered a tune up kit, will try that and see if it makes a difference. When starting in manual mode and exercise mode, sometime had to push start button 2 or 3 times to start on manual, only ran about 6 hours total on 2 short power failures in three years.
Charles C. Recommends This
Was this review helpful?
Rating Breakdown
5/5
4/5
4/5
5/5
Pros:
Features, Quiet, Price, Id Buy It Again
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