Outdoor generator transfer switches are a crucial component for safely powering your home during an outage. These devices allow you to connect a portable generator to your home’s electrical system, providing backup power to keep essential appliances running. Outdoor transfer switches are installed outside near your home’s main circuit panel and feature weatherproof enclosures that protect sensitive components from the elements. They utilize automatic transfer technology to detect a power outage and switch over to generator mode within seconds. This prevents the need to manually plug appliances into the generator, reducing the likelihood of overloading. When shopping for an outdoor generator transfer switch, look for a UL listed model with adequate amperage capacity for your electrical needs and consider a pre-wired kit for simpler installation. Reliable brands like Reliance, Generac and Eaton offer quality solutions to keep your lights on and household safe in a blackout. Investing in an outdoor generator transfer switch lets you reap the full benefits of your backup power system.
Our Top Picks For 2025
Rundik 50 Amp Generator Power Inlet Box
The Rundik 50 Amp Generator Power Inlet Box is an outdoor, weatherproof electrical inlet designed for safe, convenient generator connections up to 12500 watts. This ETL listed power inlet box provides a secure power transfer point to run your home essentials during outages.
The Rundik 50 Amp Generator Power Inlet Box is an ideal solution for connecting a portable generator to your home electrical system. This heavy-duty inlet box allows you to safely tap into generator power up to 12500 watts during power outages.
Key Features:
- Weatherproof design is safe for outdoor installation
- 50 amp and 125/250 volt capacity handles most portable generators
- Prewired for easy hookup to your home transfer switch
- ETL listed for safety and compliance with electrical codes
- Green indicator light shows when generator power is active
- Durable and rust resistant powder coated steel construction
- Removable front panel allows convenient interior access for wiring
- Multiple knockouts and conduit openings for secure wire routing
- Surface mount installation is quick and straightforward
With its robust construction, ample wiring space, and weather sealed design, the Rundik 50 Amp Generator Inlet Box delivers reliable outdoor access to backup generator power when you need it most. This code compliant solution makes generator connections safe and hassle-free.
Connecticut Electric EGSPI50 50A Rainproof Generator Power Inlet Box
The Connecticut Electric EGSPI50 is a 50 amp, rainproof generator power inlet box designed for safe and convenient connection of a portable generator to your home electrical system. Made in the USA from durable powder coated steel, this inlet box is ETL listed and tested to meet UL-1008 safety requirements.
The Connecticut Electric EGSPI50 provides a secure outdoor generator connection point for emergency backup power. This 50 amp inlet box allows you to safely connect a portable generator to your home during power outages. Key features and benefits include:
Rainproof NEMA Type 3R enclosure keeps interior dry
Pre-wired 50 amp CS6375 receptacle for easy generator connection
Accepts Siemens HR Series conduit hubs for protected wire routing
Listed to UL-1008 standards for safe operation
Made from rugged galvanized steel with durable powder coated finish
Spring-loaded door keeps box closed when not in use
The Connecticut Electric EGSPI50 generator inlet provides a reliable solution for connecting backup power to your home’s electrical system. The rainproof design and durable construction ensure safe operation and lasting performance.
Reliance Controls 50 Amp Generator Power Inlet Box
Reliance Controls offers a heavy-duty 50 amp generator power inlet box designed for outdoor use. This NEMA 3R inlet box provides a weatherproof power connection point for your portable generator.
The Reliance Controls 50 amp generator inlet box provides a convenient outdoor connection point for powering your home or RV with a portable generator during power outages. Made from durable polycarbonate, this inlet box is designed for long-lasting performance in outdoor environments.
Key Features and Benefits:
- Weatherproof NEMA 3R rating for outdoor use
- Durable polycarbonate construction
- Pre-wired 50 amp CS6375 receptacle
- Supports generators up to 12,500 watts
- Green “power on” indicator light
- Mounting hardware included
- ETL listed for safety
With its weatherproof design and pre-installed 50 amp receptacle, the Reliance Controls generator inlet box makes it easy to safely connect your portable generator to your home’s electrical system. The built-in indicator light lets you know when power is actively flowing into the box. Backed by ETL safety certification, this 50 amp inlet box provides a reliable outdoor power connection point for your generator.
Westinghouse WGen9500 Portable Generator
The Westinghouse WGen9500 is a powerful and dependable portable generator perfect for home backup power. With 9500 running watts and 12500 starting watts, it can handle most household appliances and electronics during power outages.
The Westinghouse WGen9500 portable generator provides reliable home backup power with premium features. This versatile unit packs plenty of power in a convenient and portable package.
Key Features and Benefits:
- Powerful 457cc Westinghouse OHV engine provides 9500 running watts and 12500 starting watts
- 6.6 gallon fuel tank provides up to 12 hours of run time on a full tank
- Electric and recoil start options ensure easy, reliable starting
- Digital controls with automatic voltage regulation provide smooth, consistent power
- Transfer switch ready with L14-30R and 14-50R outlets for direct home integration
- Comes with battery, oil, tools, and user manual for quick setup
- 3-year limited warranty provides peace of mind
With its ample power, convenient features, and reliable performance, the Westinghouse WGen9500 generator is an excellent choice for home backup power during outages and emergencies. This rugged, well-built unit will provide critical electricity when you need it most.
BESYL 50-Amp Generator Inlet Box
Heavy duty 50 amp 125/250V generator inlet box with NEMA SS2-50P plug. Outdoor rated and weatherproof, with flip lid cover and power indicator light. Provides easy generator connection for up to 12,500W.
The BESYL 50-Amp Generator Inlet Box offers a convenient outdoor connection point for a portable generator. This heavy duty inlet box is designed for tough weather conditions and long lasting performance.
- NEMA SS2-50P 50 amp 125/250V plug for generator connections up to 12,500 watts
- Weatherproof construction with rugged powder coated steel housing
- Flip lid cover protects plug when not in use
- Green indicator light shows power status
- Large wiring cavity for easy installation
- Pre-drilled knockouts for multiple wiring options
- ETL listed for safety and compliance
With its durable and weatherproof design, the BESYL 50-Amp Generator Inlet Box provides a reliable outdoor generator connection to supply backup power to your home or RV. The convenient flip lid and indicator light make generator hookup safe and easy.
EZ Generator Switch
The EZ Generator Switch is a manual transfer switch that provides a convenient way to connect a generator to your home’s electrical system to power essential circuits during a power outage. Made in the USA. UL/CSA approved for safety.
The EZ Generator Switch from EZ Generator Switch LLC is an innovative, patented manual transfer switch that lets you safely connect a portable generator to your home during power outages. This high-quality, UL and CSA approved switch allows you to power essential home circuits through your generator without the risk of backfeeding your main electrical panel.
Key Features and Benefits:
- Allows you to power select home circuits through a generator simply by plugging in an extension cord from the generator to the switch and flipping the switch to “Generator” mode. No need to mess with your home’s main circuit breaker panel.
- Comes with everything needed for installation including a back box, wires, connectors, and easy to follow instructions. Can be installed in about 30 minutes by a DIYer.
- Made and assembled in the USA by a veteran-owned company. Real customer support if you need help.
- Universal design works with generators that have either a floating or bonded neutral. Can be easily converted in minutes.
- Rated at 15A in generator mode, 20A in normal/utility mode. Safely powers essential 120V circuits like lights, outlets, furnace, refrigerator, sump pump etc.
The EZ Generator Switch provides a simple, safe, and UL/CSA certified way to connect your generator to your home’s electrical system to keep essentials powered in a blackout. It’s easy to install and use – just plug in and flip the switch. Made in USA with real customer support.
Connecticut Electric EmerGen Transfer Switch Kit
The Connecticut Electric EmerGen Transfer Switch Kit is a 30 amp, 10-circuit transfer switch that allows you to connect a portable generator to your home’s electrical system. Made in the USA by Connecticut Electric.
The Connecticut Electric EmerGen Transfer Switch Kit provides a convenient and safe way to connect a portable generator to your home during power outages. This kit includes everything you need for quick and easy installation alongside your existing load center.
Key features and benefits:
- Compatible with portable generators up to 7500 watts
- 10 circuit capacity
- 30 amp and 240 volt operation
- Includes 10 ft power inlet cord
- NEMA 3R rainproof enclosure for indoor/outdoor use
- Prevents backfeed to protect utility linemen
- Powder coated steel enclosure for durability
- Side mounting rails simplify installation
- Works with all major residential load centers
- ETL listed for safety and compliance with UL standards
With easy-to-follow instructions, the EmerGen Switch Kit is a cost-effective alternative to rewiring your whole home. This quality transfer switch from Connecticut Electric provides reliable emergency power whenever you need it.
Go Power! TS-30 30 Amp Automatic Transfer Switch
The Go Power! TS-30 is a 30 amp automatic transfer switch that provides seamless power switching between two 120V AC power sources. It is ideal for RV, marine, and off-grid applications using shore power and inverters or generators.
The Go Power! TS-30 automatic transfer switch offers a reliable power management solution for your RV, boat, tiny house, or off-grid electrical system. This 30 amp transfer switch allows you to automatically switch between shore power and an inverter or generator to power your circuits and appliances.
Key Features and Benefits:
- Automatically switches power source from shore power to inverter/generator when shore power is lost
- Transfers power back to shore power once it’s restored
- 30 amp, 120V capability
- Delayed switching prevents overload when using a generator
- Durable electrical-grade plastic housing
- Pre-wired knockouts for easy installation
- Single relay design with rotary actuator
- Mechanical and electrical safety interlocks
- Compact 9.65 x 7.28 x 4.75 inch size
With automatic power switching, the Go Power! TS-30 transfer switch provides a convenient way to utilize shore power when available but seamlessly switch to your onboard power source when necessary. It’s an essential component for off-grid, RV, and marine electrical systems.
Generator Power Inlet Box, 30 Amp Generator
Outdoor-rated, weatherproof generator power inlet box with 30A 125/250V NEMA L14-30P inlet plug. Allows safe connection of portable generator to home wiring to provide backup power during outages.
The hynade Generator Power Inlet Box provides a secure outdoor connection point to supply your home with electricity from a portable generator during power outages. This heavy-duty inlet box is designed for outdoor installation and is weatherproof rated for wet locations.
Key Features and Benefits:
- NEMA L14-30P 30A 125/250V inlet plug compatible with most portable generators
- Weatherproof flip lid cover protects socket when not in use
- Rustproof and corrosion resistant coated steel construction
- Pre-punched mounting holes for easy installation
- Generous interior space for wiring connections
- ETL listed for safety and compliance with electric codes
With its rugged and weatherproof design, the hynade Generator Power Inlet Box allows you to safely connect your portable generator outside to provide backup power to your home’s electrical system in the event of a power outage or emergency.
Reliance Controls THP108 EMW3561925
The Reliance Controls THP108 EMW3561925 is a modern, battery-powered alarm system designed for use with any new or existing main breaker panel or transfer switch. It provides an audible alert during a power outage and notifies you when utility power is restored.
The Reliance Controls THP108 EMW3561925 is a versatile and high-performing alarm system that enhances your power management by keeping you informed about power outages and restoration.
Key Features and Benefits:
- Compatibility: This device is intended for installation on any manual transfer panel or generator-ready load center. This makes it highly adaptable to various power systems.
- Audible Alert: The system sounds an 86dBA (@30cm) audible alert during an event of power outage, ensuring you are notified of power issues in real-time.
- Power Restoration Notification: The device lets you know exactly when utility power is restored following an outage. This saves you from frequent checks and guesswork.
- Battery-Powered: It operates on batteries, providing uninterrupted performance even during power outages. It also comes with a low battery indicator for timely replacement.
