Briggs & Stratton Automatic 8kW NG/LP Standby Generator Essential Power with 50 Amp 10 Circuit ATS 40445

Briggs & Stratton Automatic 8kW NG/LP Standby Generator Essential Power with 50 Amp 10 Circuit ATS 40445
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Product ID : 40445
MSRP: $2,596.00
Sale Price: $2,399.00
You Save: $197.00
Manufacturer: Briggs & Stratton
Weight: Free Shipping
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The Briggs & Stratton 8kW standby generators automatically keep your home powered up during unexpected power outages, even if you are not home. When an outage occurs, the generator starts and the 50 amp, 10-position automatic transfer switch selects generator power¯all within just a few seconds¯to keep the essential electrical loads that keep your home safe, secure, and comfortable operating with minimal interruption.

Placement & Safety

With a front-facing exhaust and full compliance with NFPA 37 (National Fire Protection Association) placement of internal combustion engines, these standby generators have more placement options than similarly priced and sized generators. The thermally activated, automatic fuel shutoff valve and non-combustible, all steel cabinet and base with the smallest footprint its power class make these standby generators safe for installations as close as 18 inches to the home¯perfect for small yards, tight lot lines, and inconspicuous placement.


The 8 kilowatt standby generators feature a new Briggs & Stratton 500cc OHV engine designed specifically for long-term reliability and performance. When the power goes out, you can be sure the generator will start, run, and keep running until utility power is restored. Simple access to the engine makes routine maintenance easy and convenient for oil, filter, and spark plug changes.

Briggs & Stratton configures their generators at the factory to run on either natural gas or liquefied petroleum (LP) gas, eliminating the need to configure the generator during installation.

Automatic Transfer Switch

With 8 kilowatts of power, these generators are perfect for supplying your refrigerator, furnace, pumps, lights, and television with electrical power. The automatic transfer switch allows the installation of up to ten single pole circuit breakers to supply essential branch circuits with power from the standby generator. During an outage, the transfer switch isolates the breakers from the incoming utility lines and switches them to generator power. This allows essential circuits to keep operating and prevents backfeeding of utility lines¯an essential safety feature that protects utility workers.


At the heart of the system is the onboard controller which monitors the engine, alternator output, and safety sensors that include low oil shutdown, low frequency or voltage, engine temperature, engine status, transfer switch status, and battery condition. The controller operates the generator to maintain the output voltage at the correct frequency and level for power as clean as that from the utility¯perfect for operating computers and other sensitive electronics.

Appearance and Noise

At less than 80db, the 8kW standby generator from Briggs & Stratton isn't much louder than a five-ton central air conditioner. Sitting on its base, the generator is 35 inches high, 28 inches wide and 24.4 inches deep, giving it the smallest footprint in its power class. The case is made from Gavanneal steel¯the same steel used by the automotive industry¯for a long lasting, chip and rust-resistant finish that performs well even in a coastal climate to keep the generator looking good for years to come.

Optional Accessories

Cold-weather kits that include a battery warmer and two oil heaters ensure the generator will start, even in cold weather. The battery warmers are thermostatically controlled, and the kits are tested at 20 degrees below zero.

Wireless monitors install easily and eliminate going outdoors to check on the generator. The basic wireless monitor mounts anywhere indoors to keep you informed of the generator's status and operation.

Get all your maintenance supplies in kit form including oil, oil filters, air filters, and spark plugs. With a maintenance kit, you know you have the right supplies. Keep extra kits ready so you have the parts you need to keep the generator running during a long-term power outage.

Briggs & Stratton 8kW standby generators come with 4-year, limited residential warranty.

Product Specifications:
Model Number 40445
Manufacturer Briggs & Stratton
Made In USA Yes
Rated Watts 8kW
Enclosure Galvaneal Steel
UL Listed Yes
Decibel Rating @ 7m 79 dBA @ 7 meters
Starting System Electric Start/Automatic
Low Oil Alert Yes
Idle Control No
Hour Meter Yes
Battery 12V BCI size 26 540 CCA Not Included
Mounting Pad Included
Weight 252 lbs
Shipping Weight 345 lbs
Dimensions (Inches) 28L x 24.4W x 35.1H
Engine Brand B & S Vanguard Engine OHV
HP/CC 500 cc
Engine RPM 3600
Cooling System Air Cooled
Alternator Type Brushed
Voltage 120/240V Single Phase
Frequency 60 Hz
Auto Voltage Regulation Yes
Rated Amps 33.3LP/25 NG
Fuel Type Natural Gas/LPV Liquid Propane
NG Power Capacity 6 kW
LP Power Capacity 8 kW
NG Consumption @ Full Load 121 cu.ft/hr
NG Consumption @ 1/2 Load 94 cu.ft/hr
LP Consumption @ Full Load 1.57 gal/hr
LP Consumption @ 1/2 Load 1.04 gal/hr
Transfer Switch 1918
Transfer Switch Amps 50 Amps
Transfer Switch Circuits 10 Circuit Pre-Wired Load Center
5 - 15A - 120V
3 - 20A - 120V
1 - 20A - 240V
Transfer Switch Style 2 Pole
Consumer Information
Consumer Warranty 4 Year Limited Warranty
Availability Ships Factory Direct In 3-4 Days

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