Performance Parts & Accessories
Briggs & Stratton 20kW Standby Generator
More powerful than competing 20kW models, the Briggs & Stratton 20kW Standby supplies 20,000 Watts on Natural Gas and LP Propane. The 20kW generator fits into backyard or side yard landscaping with an appealing profile and installation only 18-inches from the home. The Briggs & Stratton 40662 is sold without a transfer switch—ideal for replacement or upgrade with an existing compatible automatic transfer switch.
Briggs & Stratton backs the PowerProtect 20kW standby generator with the longest, most comprehensive warranty in its class. The 6-Year* Limited Warranty covers parts, labor, and travel for the entire 6-year term. Made in the USA with a commercial-grade Vanguard engine. Connected with a compatible automatic transfer switch, the Briggs and Stratton 20kW Generator Power Management System keeps all your essentials and conveniences running throughout any power outage.
Briggs and Stratton 20kW Generator
The Briggs and Stratton 20kW Generator has a 993 cc V-Twin OHV Vanguard commercial-grade engine. PowerProtect series generators include Low Oil Shutdown, high temperature shutdown, LED display, and a built-in battery charger.
20kW Standby Generator 40662 Ratings
| Use Rating | Standby Only—Utility Grid Must Connected |
| Voltage | 120/240 Volts Single Phase |
| Running Watts | 20kW LP Propane / 20kW Natural Gas |
| Running Amps | 83.3 Amps LP Propane / 83.3 Amps Natural Gas |
| Main Circuit Breaker | 100 |
| Normal Operating Sound | 68 dBA |
| Frequency Regulation | ±1.0 Percent |
| Engine Speed | 3600 RPM |
20kW Briggs and Stratton Generator
The 20kW Briggs and Stratton Generator restores power to your home during utility outages. Fully automatic, it works in any weather including hurricanes, day or night. Whether you’re at home, away on vacation, or sleeping in your bed the 20kW generator senses a power outage. Within seconds, the generator starts and signals the automatic transfer switch. The ATS switches from utility to generator power. Power management ensures your home’s essential appliances and circuits have power when they need it.
Compatible with Amplify and Symphony II Power Management Systems.
Where temperatures fall below 30 degrees Fahrenheit, install a battery warmer and oil warmer to ensure fast, easy starts. In below freezing temperatures, a warm battery provides more power for starting the generator. Warm oil lubricates better which prolongs engine life and makes it easier to start.
Briggs and Stratton 20kW Generator installations require the use of a Carbon Monoxide Detector inside the home to guard against CO Poisoning.
This Briggs & Stratton 20kW Standby Generator is NOT rated for Prime Power Applications.
* Battery Not included—12 Volt, Group BCI 26 or 51, 540 Cold Cranking Amps
* Enclosure Warranty
- 1-Year Parts/Labor/Travel covers surface rust and corrosion.
- 3-Year Parts/Labor/Travel covers enclosure rust through.
Product Specifications
Model
Model Number; 40662
Manufacturer; Briggs and Stratton
Made In USA; Yes
Rated Watts; 20kW LP Propane / 20kW Natural Gas
Rated Amps; 83.3 LP Propane / 83.3 Natural Gas
Voltage; 120/240 Volts Single Phase
A/C Ton Rating; 5-Ton
Enclosure; Aluminum Enclosure with Automotive-Grade Galvanneal Steel Base
UL Listed; UL-2200
Decibel Rating; 65 dBA Low Idle Mode / 68dBA Normal Operation
Type; Standby Generator
Series Name; PowerProtect
Features
Starting System; Automatic
Low Oil Alert; Yes
Idle control; Low Idle Exercise Mode
Mainline Breaker; 100 Amps
Battery Requirement; 12-Volt, Group BCI 26 or 51, 540 CCA
Weight; 435 Lbs
Dimensions; 46.5L x 26.8W x 28.4H
Warranty Information
Consumer Warranty; Briggs and Stratton 6-Year Limited Warranty Covers all Parts, Labor, and Travel
Engine
Engine Brand; Vanguard Commercial OHV
Engine Size; 993cc
Engine RPM; 3600
Cast Iron Sleeve; Dura-Bore Cast Iron Cylinder Sleeves
Cooling System; Air Cooled
Alternator
Alternator Type; Self-Excited, Rotating Field
Frequency; 60 Hz
Auto Voltage Regulation; Yes
Fuel
Fuel Type; Natural Gas or LP Propane
Fuel Gauge; No
NG Power Capacity; 20kW
LP Power Capacity; 20kW
NG Consumption @ Full Load; 260 cubic-feet / hour
NG Consumption @ Half Load; 187 cubic-feet / hour
LP Consumption @ Full Load; 3.7 gallons / hour
LP Consumption @ Half Load; 2.3 gallons / hour
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