Keep your home powered through unexpected utility outages with the Briggs & Stratton 40743 13kW PowerProtect™ Standby Generator. Designed for residential backup power, this automatic standby generator delivers 13kW on liquid propane (LP) and 11kW on natural gas (NG) while providing the motor-starting capability needed for demanding household equipment.
Powered by a Vanguard® commercial-grade V-Twin engine, the 40743 combines dependable standby performance with a compact design that provides greater installation flexibility around the home.
This package includes a 200 Amp SE Transfer Switch, allowing a properly configured system to automatically respond when utility power is interrupted and transition the home's electrical loads to generator power.
Key Features
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13kW LP / 11kW Natural Gas: Dual-fuel capability allows the generator to operate on either liquid propane or natural gas.
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Automatic Standby Operation: Designed to automatically provide backup power when paired with the included compatible automatic transfer switch.
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200 Amp SE Transfer Switch Included: Supports automatic power transfer and whole-home electrical system applications when properly sized and configured.
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Vanguard® Commercial-Grade Engine: Powered by a Briggs & Stratton Vanguard V-Twin engine designed for reliable standby operation.
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NGMax™ Technology: Engineered to improve generator performance when operating on natural gas.
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Strong Motor-Starting Capability: Designed to handle demanding motor loads, including compatible residential air-conditioning equipment.
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Symphony® Choice Power Management: Allows a properly configured system to prioritize and manage household electrical loads according to available generator capacity.
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Compact Footprint: Designed to require less installation space than many conventional standby-generator configurations.
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Front-Facing Exhaust: Provides additional flexibility when determining generator placement.
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18-Inch Installation Capability: May be professionally installed as close as 18 inches from a structure when installation conditions and applicable manufacturer requirements are satisfied.
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Full-Pressure Lubrication: Engine lubrication system is designed to support dependable operation and long-term engine protection.
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LCD Control Panel: Provides convenient access to generator operating information, system status, and fault information.
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Optional Remote Monitoring: Compatible monitoring capabilities allow generator information to be accessed remotely from supported devices.
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Outdoor Enclosure: Designed to protect the generator and internal components in outdoor residential installations.
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60 Hz Single-Phase Power: Designed for standard residential standby-power applications.
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Engineered and Assembled in the USA: Assembled in the United States using domestic and foreign parts.
Automatic Backup Power for Your Home
The Briggs & Stratton 40743 PowerProtect generator is designed to provide automatic backup electricity when normal utility power is unavailable.
When an outage occurs, the automatic transfer system detects the loss of utility power and initiates the standby generator. Once generator power is ready, the transfer switch transitions the appropriate household electrical loads to backup power.
When utility service returns, the system transfers the loads back to utility power.
This automatic operation allows the standby-power system to protect your home even when you're away.
13kW LP / 11kW Natural Gas Performance
The Briggs & Stratton 40743 can operate using either liquid propane or natural gas, providing homeowners with flexibility when planning their standby-power installation.
| Fuel |
Generator Output |
| Liquid Propane (LP) |
13kW |
| Natural Gas (NG) |
11kW |
Briggs & Stratton's NGMax™ technology is designed to improve performance when the generator operates on natural gas.
The appropriate fuel source should be determined according to local fuel availability, generator demand, fuel-system capacity, installation requirements, and applicable codes.
200 Amp Automatic Transfer Switch Included
This generator package includes a 200 Amp SE Automatic Transfer Switch.
The transfer switch is an essential part of an automatic standby-generator system because it monitors utility power and manages the transition between utility and generator power.
A properly designed system can be configured around the home's electrical requirements while allowing power management to control larger loads when necessary.
Powering Your Home During an Outage
A properly sized 13kW standby generator can provide backup power for many important household loads.
Depending on individual equipment requirements and system configuration, these may include:
- Refrigerator and freezer
- Lighting
- Internet and networking equipment
- Security systems
- Sump or well pumps
- Heating equipment
- Selected kitchen appliances
- Garage-door equipment
- Residential air-conditioning equipment
- Other essential household circuits
Actual generator capacity depends on the combined running and starting requirements of the connected equipment. Large motors and air conditioners can require substantially more power during startup.
Built for Air-Conditioning Starting Loads
One of the most important considerations when selecting a home standby generator is motor-starting capability.
Air conditioners and other motor-driven equipment can temporarily require considerably more electrical power when starting than they consume during normal operation.
The Briggs & Stratton 40743 is designed with strong motor-starting capability for demanding residential loads.
Air-conditioner compatibility should nevertheless be determined using the actual electrical requirements of the HVAC equipment rather than nominal tonnage alone.
Symphony Choice Power Management
The Briggs & Stratton 40743 is compatible with Symphony® Choice Power Management, allowing homeowners to prioritize electrical loads based on available generator capacity.
Instead of requiring every large appliance to operate simultaneously, a properly configured power-management system can control when certain electrical loads receive generator power.
This can help homeowners design a backup-power system around their most important equipment without automatically requiring a substantially larger generator.
Compact Installation Design
Outdoor space can be a major consideration when installing a standby generator.
The Briggs & Stratton 40743 features a compact design and front-facing exhaust, providing greater flexibility when determining generator placement around the property.
The unit may be professionally installed as close as 18 inches from a structure when permitted by Briggs & Stratton installation requirements and applicable local codes.
Generator installations in areas exposed to hurricanes, flooding, coastal conditions, or severe weather may require additional installation considerations, including an appropriate mounting and anchoring system.
Generator Monitoring and Controls
The generator's multi-line LCD control panel provides access to important operating information, including generator status and fault information.
Compatible optional remote-monitoring equipment can provide additional access to generator information from supported smartphones, tablets, and computers.
This can be particularly useful for homeowners who travel frequently, own vacation properties, or simply want greater visibility into the status of their standby-power system.
Specifications
| Specification |
Details |
| Brand |
Briggs & Stratton |
| Series |
PowerProtect |
| Model Number |
40743 |
| Generator Type |
Automatic Home Standby Generator |
| Rated Output – LP |
13kW |
| Rated Output – Natural Gas |
11kW |
| Fuel Type |
Liquid Propane / Natural Gas |
| Frequency |
60 Hz |
| Phase |
Single Phase |
| Engine |
Vanguard V-Twin Commercial-Grade Engine |
| Maximum Engine Speed |
3600 RPM |
| Transfer Switch Included |
Yes |
| Transfer Switch Rating |
200 Amp |
| Power Management |
Symphony Choice Compatible |
| Control Display |
Multi-Line LCD |
| Remote Monitoring |
Optional |
| Installation Clearance |
As close as 18 inches when permitted |
| Certification / Listings |
cUL, UL 2200 and applicable listed approvals |
A Compact Home Standby Power Solution
The Briggs & Stratton 40743 13kW PowerProtect Standby Generator combines automatic operation, dual-fuel capability, strong motor-starting performance, a commercial-grade Vanguard engine, power-management compatibility, and an included 200 Amp transfer switch.
Its compact configuration makes it particularly attractive for homeowners who want dependable backup power without dedicating excessive outdoor space to generator equipment.
Whether your priority is keeping refrigeration running, maintaining heating and cooling, powering security equipment, or keeping essential household circuits operational, the 40743 can serve as the foundation of a professionally designed residential standby-power system.
Shop Briggs & Stratton Standby Generators at AC Units For Less
Prepare your home for unexpected utility outages with Briggs & Stratton PowerProtect standby power.
The Briggs & Stratton 40743 13kW PowerProtect Generator with 200 Amp Transfer Switch provides automatic backup-power capability in a compact residential package designed around dependable performance and installation flexibility.
Shop Briggs & Stratton standby generators, transfer switches, power-management equipment, and generator accessories at AC Units For Less.
Important: Generator capacity, HVAC compatibility, fuel-system sizing, transfer-switch selection, installation clearance, and electrical configuration should be verified by qualified professionals according to manufacturer instructions and applicable electrical, fuel-gas, and building codes.