12 kW1 Fortress Standby Generator System
12 kW1 Fortress Standby Generator System

12 kW1 Fortress Standby Generator System

Back-up power for small to medium sized homes

With its sleek, compact profile, the 12kW1 Home Standby Generator adds new dimension to “Powering More for Less."

12

kW

627cc

Displacement

3600

RPM

6 Year

Limited Warranty

Features

Symphony II®

Thanks to Symphony® II Power Management System, a smaller home generator system by Briggs & Stratton can meet all your needs and save you money in the process.

6 Year Parts, Labor & Travel Limited Warranty

The longest warranty in the industry. Our most comprehensive 6 year parts, labor & travel limited warranty.

Now 60% Quieter*

Powered by our high-quality Vanguard engine, improved muffler design and re-engineered alternator intake ducting, the new 12kW is 60% quieter than our old 12kW.

Streamlined, Space-Saving Design

With the streamlined, compact design, the new 12kW is 50% smaller than our previous 12kW generator.

Durable Enclosure

Designed to weather the elements, the system's enclosure is made from automotive-grade Galvanneal steel to resist rust. Its advanced powder coat paint process results in years of protection against chips and abrasions.

Flexible Placement3

Have a tight lot line? Worried about your curb appeal? Install your generator as close as 18" for your home. Our generators are in compliancy with the stringent National Fire Protection Agency 37 standard.

Superior Customer Support

Shopping for the right standby generator for your home can be confusing, but Briggs & Stratton will be with you every step of the way. Call our U.S.-based Answer Care Representatives by calling (800) 743-4115 or visit the Customer Support Portal to get your questions answered now.

Financing Solution

We have partnered with Synchrony to provide financing solutions that fit your needs. Special financing* is available on qualified Briggs & Stratton Standby Generators on the Briggs & Stratton Standby Power Credit Card.
*Subject to credit approval Minimum monthly payments required.

*Based on no-load sound power. Not for Prime Power or use where standby systems are legally required, for serious life safety or health hazards, or where lack of power, hampers rescue of fire-fighting operations.
This generator is rated in accordance with UL (Underwriters Laboratories) 2200 (stationary engine generator assemblies) and CSA (Canadian Standards Association) standard C22.2 No. 100-04 (motors and generators)
3Installations must strictly comply with all applicable codes, industry standards, laws, regulations and provided installation manual. Running engines give off carbon monoxide, an odorless, colorless, poisonous gas so it is important to keep exhaust gas away from any windows, doors, ventilation intakes or crawl spaces. The installation manual contains specific instructions related to generator placement in addition to NFPA 37, including the requirement that Carbon monoxide detectors be installed and maintained in your home.

Specs

Model Number
040546
Running Watts (NG)*
11,000
Engine Series
Vanguard™
Operation
Fully Automatic
Running Amps (LP)
50
Alternator Type
Computer Friendly
NG Fuel Consumption**
50% Load 119 ft3 /hr
Battery/Battery Charger
Yes
Diagnostic Alerts with Remote System Status
Low Oil Shutdown, Engine Does Not Start, Low Frequency, Engine Overspeed, Low Voltage, Low Battery Voltage, Oil Temp High, Transfer Switch Fault
Width (in)
26
Weight (lbs)
318
Running Watts (LP)*
12,000
Engine Brand
Briggs & Stratton
Engine Displacement (cc)
627
Voltage (V)
120/240V AC, Single Phase, 1.0 pf
Running Amps (NG)
45.8
LP Fuel Consumption**
50% Load = 2.36 gal/hr
Weekly Exerciser
Yes
Overcrank Protection
Yes
Length (in)
28
Height (in)
37.2
Warranty (Product)***
6 Year Parts, Labor & Travel Limited Warranty

*NG = Natural Gas; LP = Liquid Propane.
**Fuel consumption rates are estimated based on normal operating conditions at 1/2 load. Generator operation may be greatly affected by elevation and the cycling operation of multiple electrical appliances - fuel flow rates may vary depending on these factors.
***See Operator's Manual for complete warranty details

Support

Manuals

Download the operator's manual or illustrated parts list for your Briggs & Stratton engine or equipment by following our step-by-step process.

Find Manuals >

FAQs

Have a question? Search our FAQs to find answers related to model specifications, routine maintenance, repair or troubleshooting.

Search FAQs >

Maintenance How-To Articles

Find DIY articles on how to use & maintain your Briggs & Stratton engine or equipment.

Find Articles >

Shop Repair & Maintenance Parts

Find genuine Briggs & Stratton repair and/or maintenance parts for your engine or outdoor power equipment to ensure future performance.

Purchase Parts >

Accessories

OPTIONS DESCRIPTION  
Cold Weather Kit

Help ensure smooth starting and reliable operation in the winter months with the Briggs & Stratton Cold Weather Kit tested to start at -20 degrees F. The thermostatically controlled battery warmers and oil heaters activate as the temperature drops.

 
Maintenance Kit

Briggs & Stratton maintenance kits help you complete scheduled maintenance and prevent costly repairs on your standby generator. Maintenance kits are designed specifically for your generator’s needs.

 
Infohub™
Wireless Monitor

Infohub™ notifies your computer, tablet, smartphone and/or dealer with your generator status, maintenance needs and service schedule reminders. Simple, hands-free and affordable, Infohub is a good choice for wireless monitoring.

 

Reviews

Q&A

Email Newsletter Sign Up