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Model # 40401
MSRP: $4,449.00
Every Day Price: $4,299.00
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16kW 40401 Standby Generator With 200 Amp Automatic Transfer Switch By Briggs and Stratton

  • Reliable Engine Power - Commercial Grade Vanguard Engines
  • Manage the loads of up to two air conditioners while powering other household appliances
  • ACCM Managed Whole House Power system
  • Includes 200 Amp Automatic Service Entrance Rated Transfer Switch Nema 3R, Indoor/Outdoor Rated
  • Rust-resistant, Galvanneal steel enclosures
  • Automatically powers your home in seconds after sensing a power outage
  • Thermally protected fuel system which automatically shuts off the unit in the event of a fire
  • Featuring unique airflow technology, the standby generator's design pushes engine exhaust out the front of the unit and directly away from the house
  • Front exhaust allows the generator to be placed as close as 18" from the home or other structures for custom placement
  • 4 Year Limited Parts and Labor Warranty


Details and Specifications

The Briggs & Stratton 16-kilowatt, standby generator package keeps your home and family safe and secure during during a power outage. With the included 200 amp automatic transfer switch and A/C control module, it supplies and manages power to all your home appliances and is suitable for most medium-sized homes.

Required clearances as close as 18 inches to the home and a front facing exhaust make it possible to place the generator where tight lot lines and other factors might otherwise limit installation. Fuel choices include LP gas (propane) and natural gas. The genset is UL2200 rated and meets CSA 22.2 requirements. It is EPA compliant and comes with a four year, 1600 hour limited consumer warranty.

Fuel Choices

The generator produces 16 kilowatts of power using LP gas. At full load, consumption runs about 3.14 gallons per hour, and about .71 gallons per hour at half load. When running on natural gas, the generator is capable of 14.4 kilowatts of power and uses 163 cubic feet at half load, and 244 cubic feet at full load.

The amount of fuel consumed is dependent upon the electrical load placed on the generator, and changes as the load changes. The fuel solenoid located at the back of the unit controls the flow of gas to the engine and may be shut off in an emergency.


The 16 kilowatt generator has a 35 horsepower, 993cc Vanguard V-Twin engine made by Briggs & Stratton to turn the generating unit. This engine was engineered by Briggs & Stratton to meet stringent standards for home generator systems. A pressurized oil lubrication comparable to those used on automobile engines permit the generator to operate for extended periods without maintenance and will shut the engine down if it detects low oil pressure.

This line of generators is set to run on natural gas at the factory, but is field selectable for either LP gas or natural gas. The Vanguard engine has an electronic governor to keep engine speed at a consistent 3600 RPM and the generator output frequency at 60 hertz for the same quality of power as supplied by your electric utility.

Transfer Switch

The 200 amp Briggs & Stratton automatic transfer switch is a service entrance rated switch with disconnect that installs before the main distribution panel. The transfer switch is controlled by the generator's controller. During normal operation, the switch selects utility power. When a power outage occurs, it connects the distribution panel to generator power.

The air conditioner control module (ACCM) stores the starting power required by central air conditioning units. During an outage, it allows the air conditioners to start when there is enough power available from the generator, preventing overload conditions.

System Control Panel

The control panel has a digital display for programming the date, time and the exercise cycle and for viewing the event log.

Operation control buttons select between AUTO and OFF modes. AUTO allows the generator to start, run and shut off automatically. In AUTO mode, the MANUAL button allows the operator to start the generator and run it, and shut the generator off again, which returns the mode to AUTO.

A 15 amp automotive type fuse on the Control Panel protects the internal circuitry. Removal of the fuse will prevent the generator from starting during maintenance or when inspecting the generator.

Appearance and Noise

The 16 kilowatt standby generator has a rust-resistant, steel enclosure that stands up even in tough, coastal climates for long lasting protection against rust and deterioration. This unit is 48 inches wide, 34 inches deep, and 31 inches high. The steel base, suitable for either a gravel bed or concrete pad installation, meets National Fire Protection Association codes and standards better than similar polypropylene bases. This Briggs & Stratton standby generator produces noise at about 69dB, comparable to most residential air-conditioning units.

Package Includes:
- 200 Amp Automatic Transfer Switch, Fully Automatic with Service Entrance Disconnect
- Patented A/C Power Control Module to power up to two load dependent, air conditioners
- Installation Base
- Battery Charger
- Hour Meter

1 This generator is rated in accordance with UL (Underwriters Laboratories) 2200 (stationary engine generator assemblies) and CSA (CanadianStandards Associations) C22.2 No. 10004(motors and generators).
2 Warranty details available at briggsandstratton.com.
3 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 low rates may vary depending on these factors.
4 Review local codes to determine if a transfer switch with separate service disconnect is required.



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Product Specifications

Model Number 40401
Manufacturer Briggs & Stratton
Rated Watts 16 LP/14.4 NG
Rated Amps 66.8 LP/60 NG
Voltage 120/240V AC, Single Phase
Enclosure Galvanneal Steel
UL Listed UL 2200
Decibel Rating 69.1 dB(A)
Starting System Automatic
Low Oil Alert Yes
Hour Meter Yes
Battery Requirement Group 26, 12V, 540CCA
Mounting Pad Included
Product Weight 484 lbs.
Shipping Weight 627 lbs.
Dimensions (Inches) 48L x 34W x 31H (BASE 50.5 x 32.9)
Engine Brand Vanguard V-Twin
Engine Size 993CC
Engine RPM 3600 RPM
Cooling System Air Cooled
Alternator Type Brushed, Computer Friendly
Frequency 60 Hz
Auto Voltage Regulation Automatic
Fuel Type LP/NG
NG Power Capacity 14.4kW
LP Power Capacity 16kW
NG Consumption @ Full Load 244 cu.ft/hr
NG Consumption @ 1/2 Load 163 cu.ft/hr
LP Consumption @ Full Load 3.14 gal/hr
LP Consumption @ 1/2 Load 1.97 gal/hr
Transfer Switch
Transfer Switch Model 71046
Transfer Switch Amps 200 Amps
Transfer Switch Circuits Whole Panel Service Entrance Rated
ATS Poles 2 Pole
Warranty Information
Consumer Warranty 4 Year Parts and Labor
Commercial Warranty None
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Shipping Terms

All generators include 24 hour delivery notification and residential delivery. Liftgate service is available on all air-cooled generators and some liquid cooled units – Please call for verification. Free Shipping is curbside service only. Curbside service means the freight company will deliver to your address and lower your generator to the ground. The freight company will not back down driveways, place a generator in a building or where it is being installed. You are responsible for arranging the movement and setting of the generator.

Some restrictions apply to "Free Shipping" you may either view our
Shipping Information page or contact us for details.