Briggs and Stratton 12kW Generator with 100-Amp 16-Circuit Automatic Transfer Switch | 40689

Availability: In Stock
  • $2,225.00

  • Ex Tax: $2,225.00

Briggs and Stratton 12kW Generator

The Briggs and Stratton 12kW Generator fits into the landscape with a size and shape that compares to a central air conditioner—half the size of competing brands. Ideal for new installations that restore power to selected circuits, the 40689 includes a 100 Amp 12-Circuit Automatic Transfer Switch. Designed with front-facing exhaust and rated for 18-inch to home installation.

Briggs & Stratton PowerProtect Standby Generators carry the most comprehensive warranty in their 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 engine and included 16-Circuit Transfer Switch, the Briggs and Stratton 12kW Standby Generator keeps all your essentials running throughout any power outage.

Briggs & Stratton 12kW Standby Generator

The Briggs & Stratton 12kW Standby Generator has a 570 cc V-Twin OHV Vanguard commercial grade engine equipped with Low Oil Shutdown to prevent engine damage. This generator also features high temperature shutdown, LED display, and a built-in battery charger. 

Briggs & Stratton 12kW Standby Generator Ratings

Use Rating

Standby Only—Requires Available Utility Grid


120/240 Volts Single Phase

Running Watts

12kW LP Propane / 10.8kW Natural Gas

Running Amps

50 Amps LP Propane / 45 Amps Natural Gas

Main Circuit Breaker

60 Amps

Normal Operating Sound

64 dBA Low Idle / 70 dBA Normal Operations

Frequency Regulation

±1.0 Percent

Engine Speed

3600 RPM


Briggs & Stratton 12kW Generator

A Briggs & Stratton 12kW 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 12kW generator detects a power outage. Within seconds, the generator starts and signals the automatic transfer switch. The ATS switches from utility to generator power. 

Where temperatures fall below 30 degrees Fahrenheit, install a Briggs and Stratton Cold Weather Kit. The Generac Cold Weather Kit allows easier starts in temperatures below freezing with a battery warmer and oil heater. In below freezing temperatures, the battery warmer provides more power for starting the generator. Warm oil lubricates better which prolongs engine life and makes it easier to start.

Installation requires the use of a Carbon Monoxide Detector inside the home to guard against CO Poisoning.

This Briggs & Stratton 12kW 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.
  • 2-Year Parts/Labor/Travel covers enclosure rust through.

Write review

Note: HTML is not translated!
    Bad           Good