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Briggs and Stratton Generators

Model #

40645

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Briggs & Stratton 20kW Whole House Standby Generator with Aluminum Enclosure and 100-Amp SE Rated Automatic Transfer Switch | 40645

  • Briggs and Stratton 20kW Standby Generator + 100-Amp Whole-House ATS
  • NEW Amplify Power Management System Prioritizes heavy loads
  • Premium Vanguard® V-Twin Engine: Most Durable Performance in the Industry
  • Efficient Alternator for Exceptional Voltage Control and Motor Starting Power
  • Updated Control System—Low-Speed Exercise Saves Fuel—Reduces Noise
  • Corrosion Resistant Enclosure with Powder Coat Paint for a long-lasting finish
  • Best-In-Class Warranty Covers ALL Parts, Labor, and Travel for 5 Years
  • Built in the USA

Briggs and Stratton Generators 40645 Details and Specifications

Briggs & Stratton 20kW Home Standby

Never worry about losing power to your home again with a Briggs & Stratton 20kW Home Standby Generator. The backup generator system automatically starts within seconds after an outage occurs and supplies power to your entire home. With Amplify Load Management, the 20kW Briggs and Stratton 40645 has all the power you need for large and small appliances, multiple air conditioners, furnaces, pumps, and much more.

Homes with 100-Amp Electrical Service use the Briggs and Stratton 20kW Generator and 100-Amp Automatic Transfer Switch to stay safe and comfortable throughout any power outage. Refrigerators and freezers stay cold—Food stays safe and doesn’t spoil. Sump pumps keep the basement dry. Heating and Air Conditioning cool your home in the summer and warm it in the winter.

Briggs and Stratton 20kW Generator 100 Amp ATS

A new and more efficient alternator on the 40645 Briggs and Stratton 20kW Generator delivers exceptional voltage control and more power for starting motors including 5-ton air conditioners. Tighter voltage control for less than 5% total harmonic distortion (THD) means cleaner power for sensitive electronics and heavy-duty motors.

The New Briggs and Stratton Amplify Power Management System changes the way standby generators and automatic transfer switches manage generator power. An Amplify Power Management Transfer Switch determines which high voltage (240-Volt) appliances receive power and which wait their turn. The Amplify Smart Phone App gives homeowners control over the power management system. Older systems were limited to eight priority settings fixed at installation. Amplify provides up to 32 priorities controlled by the mobile app. Now the Homeowner can give the electric dryer priority over the water heater or make both appliances wait until after dinner is cooked on the electric range. The 100-Amp Amplify Transfer Switch included with the Briggs and Stratton 20kW Generator isolates the home and generator from the utility and supplies power during an outage.

An air-cooled 993cc OHV twin cylinder Commercial Vanguard Engine powers the Briggs and Stratton Generator for 100-Amp Service. The engine runs on natural gas (NG) or propane (LPG) as selected by the installer. Built with Dura Bore Cast Iron Cylinder Sleeves, Low Oil detection and shutdown, and a fully pressurized lubrication system.

The user programmable weekly test mode run operates at a lower RPM for less noise, reduced wear, and lower fuel consumption.

20kW Briggs and Stratton Generator 100 Amp

The 20kW Briggs and Stratton 40645 replaces the 20kW 40582 with updated features and controls. The new model retains the best-in-class 5-5-5 Warranty covering all parts, labor, and travel without hidden costs for a full five years. Briggs and Stratton provides superior customer support with a nationwide network and knowledgeable call center experts.

Certified to withstand hurricane force winds up to 175 MPH, The Briggs & Stratton 20kW Home Standby has a corrosion resistant aluminum enclosure for years of service. A Powder Coat Finish provides protection against chips, scrapes and abrasion for a long life and aesthetic appearance.

Requires a 12-Volt Group BCI 26 or 51, with a minimum of 540 Cold Cranking Amps (CCA) available locally. The 40645 Briggs and Stratton 20kW Generator with 100 Amp ATS maintains the battery with an independent 3-stage charger.

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Briggs and Stratton Generators

Model #

40645

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