Top 10 Best transfer switch kit for generator in 2026

Last Updated - 6/8/2026

🏆Best Choice

QYZZRS

Generator Interlock Kit Compatible with Square D QO or Homeline 150 or 200 amp Panels.1 3/8 inches Spacing Between Main and Generator Breaker.Professional and Interlock Kit(1set)

9.8

ChoiceComparer.com Score

9.8

/ 10

Outstanding

Main highlights

•Generator interlock kits are available for Square D QO and Homeline 150 and 200 amp panels.
•Interval Space Required：1 3/8 Inch Spacing between main and generator breaker.
•Installation Note: Before installing the interlocking kit, Attach the screws to the interlock kit first. Let's simulate the use of the test, so that we can better align the installation position, to avoid errors in the installation position, resulting in failure to use.
•Safe use：the manual transfer switch device allow portable generator safe back feeding power supply to distribution panel and home line. Prevent utility and generator supplies from being ON at the same time. Aren't putting electrician in dangerous and damage electric devices during power outages.
•Package：Our Generator Interlock kit include 1 × Interlock plate, 3 × Screws kit, 1 × Drill Bit, 1 × Instruction Bulletin, 2 × Generator Start-Up Procedure Label, 8 × Remind Label, 2 × Zip Ties.

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$9.99

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MUJURUR

100A Generator Transfer Switch,24000W General-Duty Double-Throw Safety Switch,120/240-Volt Transfer Switches,Stronger Stability Manual Transfer Switches,NEMA 3R Standards for Outdoor and Indoor

9.7

ChoiceComparer.com Score

9.7

/ 10

Outstanding

Main highlights

•This 100amps generator transfer switch perfect to switch the power from the electric company to an auxiliary power (gas generator, solar). A simple movement of the transfer switch lever ensures seamless power management. With a maximum handling capacity of 100amps and a power capability of 24000W, it effortlessly powers your entire household, including high-demand appliances like dryers and stoves.
•Engineered for long-term stability, this manual transfer switch features a straightforward design with aluminum connections, devoid of any electronic components. Unlike electronic devices prone to issues like moisture, dust, and limited lifespan, this switch adeptly sidesteps such concerns, ensuring continuous power supply to your home for over a decade.
•The transfer switch's casing, crafted from galvanized steel, combines robustness with corrosion and rust resistance. Meeting NEMA 3R standards, it withstands adverse weather conditions, ensuring uninterrupted functionality even during rain, hail, or strong winds. Ample internal space allows for flexible wire bending, accommodating wires up to 3 AMG without space constraints.
•A lock hole at the bottom of the Double-Throw safety switch prevents accidental power shutdown during normal power supply. Additionally, a designated grounding position inside safeguards against inadvertent electrical contact, ensuring absolute safety during usage.
•Installation is a breeze, taking just a few minutes. Despite the simplicity of the process, detailed installation instructions are provided. For your safety, we strongly recommend professional electricians handle the installation.If you have any questions about the product, we have 24-hour technical personnel to serve you

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$73.99

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VEVOR

VEVOR Manual Transfer, 50-Amp 10-Circuit, Prewired Generator Transfer Kit with CS6375 Plug Power Inlet Box, Double-Throw, NEMA 3R, Mechanical Watt Meter, for 12500W Generators

9.5

ChoiceComparer.com Score

9.5

/ 10

Outstanding

Main highlights

•Compatible with 12500W Generators: This manual transfer switch handles up to 50A and 10 circuits, allowing you to quickly switch from the main power to your generator with just the flip of a switch. It provides peace of mind and is a temporary power source during outages
•Durable and Long-Lasting: Features an easy-to-operate double-throw switch, our generator transfer switch minimizes accidental operation. Equipped with a U.S. standard mini circuit breaker to avoid overcurrent and safeguard wiring. The built-in mechanical watt meter provides stable, accurate monitoring of the generator, extending the switch's service life
•Indoor and Outdoor Use: The NEMA 3R weatherproof enclosure with a fully enclosed cover ensures secure use even in harsh conditions like rain, snow, intense sunlight, or dust storms. Our generator transfer switch kit keeps the internal wiring protected for reliable operation
•Pre-Wired for Convenience: This manual transfer switch kit comes pre-wired with clearly labeled wiring, simplifying the installation process and making usage hassle-free
•Power Input Box Included: The power input box is equipped with a CS6375 plug and a protective lid, ensuring the stability and reliability of your power input

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$163.99

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Generac

Generac 9854 HomeLink 50-Amp Indoor Pre-Wired Manual Transfer Switch Kit: Seamless Power Transition for Your Home

9.4

ChoiceComparer.com Score

9.4

/ 10

Excellent

Main highlights

•Portable Generator Power: The Generac 9854 HomeLink Transfer Switch Kit enables you to deliver reliable power from your portable generator directly to your home. Stay connected and keep your essential circuits powered during outages or when off-grid
•Safe, Versatile, and Universal: This transfer switch ensures safe operation by preventing back-feeding. It also offers versatility with the option to upgrade for use with a Generac home standby generator, supporting power needs of up to 11kW
•Effortless Power Switching: With the electronic rocker switch, seamlessly transition between utility power and generator power with a simple push of a button. Enjoy the convenience and control over your power source
•Power Indicator Lights: Clearly see the presence of utility or generator power with the power indicator lights. Stay informed and aware of your power status at a glance
•Compatible Generac Portable Generators: The Generac 9854 HomeLink Transfer Switch Kit is designed to work seamlessly with Generac portable generator models such as XG10000E, XP10000E, GP15000E, and GP17500E
•Easy Installation: Generac recommends your new transfer switch to be installed by a certified and licensed electrician

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$550.05

$584.99

-6%

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Connecticut Electric

Connecticut Electric Series 2 Backup Power Manual Transfer Switch Kit, 50 Amp, 10 Circuits, with 25' Cord & Outdoor Rated 50A Inlet (Transfer Switch Kit - 25 ft Cord)

9.2

ChoiceComparer.com Score

9.2

/ 10

Excellent

Main highlights

•HIGH-CAPACITY POWER SOLUTION: Designed for residential or small business applications with substantial power requirements, this robust transfer switch accommodates portable generators with up to 50 Amp capacity, delivering an impressive 12,500-Watt power distribution across 10 separate circuits
•VERSATILE CIRCUIT COMPATIBILITY: Features specialized switching for 240-Volt applications, making it ideal for critical equipment like well pumps, HVAC systems, and other high-demand appliances while maintaining flexibility for standard household circuits
•COMPLETE INSTALLATION KIT: Includes a professional-grade 50 Amp Power Inlet Box (CS6375) with weather-resistant cover and premium 25-foot connecting cord for convenient generator placement
•ADVANCED SAFETY ENGINEERING: Equipped with proprietary double-throw rocker switch technology that completely eliminates hazardous back feeding scenarios, protecting both utility workers and your generator investment; fully ETL certified to meet rigorous UL safety standards

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$514.99

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Reliance Controls

Reliance Controls Corporation 31406CWK 30 Amp 6-circuit Pro/Tran Transfer Switch Kit for Generators (7500 Watts).,Gray

9.1

ChoiceComparer.com Score

9.1

/ 10

Excellent

Main highlights

•Hose Length: 10.00 Feet
•Power Source Type: Corded-Electric

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$321.55

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Reliance Controls

Reliance Controls 31410CRK Pro/Tran 10-Circuit 30 Amp Generator Transfer Switch Kit,Gray

8.9

ChoiceComparer.com Score

8.9

/ 10

Great

Main highlights

•Convenient transfer switch kit, ideal for your circuitry and multi-wiring needs, is also made for reliably-fast installation in both residential and commercial applications
•Designed specifically for generators up to 7,500 maximum running watts
•18-inch flexible conduit whip attaches easily to the load center
•Maximum single-pole circuits: 10 / Maximum double-pole circuits: 5
•Features a rugged, powder-coated steel cabinet. six combination knockouts and more

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$419.04

$471.78

-11%

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Connecticut Electric

Connecticut Electric EmerGen Transfer Switch Kit - 30 Amp, 10-Circuit, 10-Foot Cord, 7500 Watts, for Generator

8.8

ChoiceComparer.com Score

8.8

/ 10

Great

Main highlights

•FOR PORTABLE GENERATOR: This transfer switch kit is designed to be used with emergency generators that have up to a 30-amp output, NEMA L14-30 receptacle. With easy-to-follow instructions, this unit is straightforward to install and a cheaper and safer alternative to running your portable generator without it.
•VOLTAGE: This transfer switch kit has four 2-pole 240-volt circuits, making it perfect for well or water sump pump applications. If you do not have use for 240-volt circuits, the tie bars can be removed allowing four additional single-pole circuits.
•INDOOR OR OUTDOOR: The transfer switch and accompanying power inlet can be used indoors or outdoors and have a NEMA 3R rainproof rating providing increased flexibility and peace of mind.
•POWER SURGE PROTECTION: The double-throw rocker switches completely eliminate the possibility of power back-feeding to the utility line or your generator when power is restored. All Connecticut Electric products are ETL listed, ensuring their compliance with UL Standards.
•COMPATIBLE WITH ALL LOAD CENTERS: This transfer switch is compatible with all residential load centers, including: Challenger, Cutler Hammer, GE, Homeline, Siemens, Square D, and Westinghouse.

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$377.01

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Afurkuot

Afurkuot 50 Amp Generator Inlet Box with Pre-Drilled Holes, ETL Listed 50A Power Box Home Generator Transfer Switch Kit for 3 Prong Adapter Cord, 125/250V 50 Amp Inlet Plug

8.6

ChoiceComparer.com Score

8.6

/ 10

Good

Main highlights

•【Pre Punched Knockouts, No Drilling】----- Are you tired of knocking out the wiring holes? Use a lot of tools to drill holes on generator power box and still cannot get the knockouts uncover? Now the Upgrade power inlet box with drilled-hole will solve this problems, no more drilling knockout needed and will not damage the power box any more, very easy and convenient to use.
•【ETL LISTED 50 Amp Power Inlet Box】----- NEMA SS2-50P, 50amp outdoor generator transfer switch, 125/250V, 12,500 Watts, NEMA SS2-50P inlet plug, This 50 amp generator inlet box with drilled holes is designed to directly used outdoor and connected to the transfer switch or electrical panel. Good use for backup power during a power outage. Very convenient to use.
•【Large Space】----- Size: 4.2” x 3” x 6.1”, this 50amp generator inlet box is designed with enough space for neat wiring. Also, there are pre punched knockouts on 4 areas, left, right, back and bottom), The knockout allows you to connect to the electrical panel from different directions.
•【LED Light Indicator】----- Constructed with a green led indicator light on the flip cover which can help you to see it in the dark night, safe and more visibility at night. Power On: Green Light Up. 50 Amp generator home transfer switch kit.
•【Heavy-Duty & Waterproof】----- Made of good waterproof and dust-proof material, constructed with rugged steel and cover with corrosion resistant coating housing, solid made for safety outdoor use.

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$29.99

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Connecticut Electric

Connecticut Electric EmerGen Manual Transfer Switch Kit 30 Amp, 25 Foot Cord, 10-Circuit, 7500 Watts, EGS107501G2K25 for Portable Generator (with 25 FT Generator Cord)

8.5

ChoiceComparer.com Score

8.5

/ 10

Good

Main highlights

•Power Up to 10 Essential Circuits – Seamlessly connect your generator to home power systems, keeping lights, appliances, and critical devices running during outages.
•All-in-One Transfer Switch Kit – Includes 30 Amp G2 switch, 25-foot power cord, and weatherproof inlet box for complete setup.
•Safe and Reliable Operation – Double-throw rocker switches eliminate dangerous back feeding, protecting your home and utility workers.
•Outdoor-Rated Inlet Box – Built tough for all-weather performance, ensuring dependable power access even in harsh conditions.
•Flexible Configuration Options – Easily customize circuit priorities with labeled toggles to power the appliances and devices you need most.
•Ideal for Portable Generators – Compatible with 30A generators (7500W running/9375W surge), perfect for home, office, or small business backup power.

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$395.00

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