Top 10 Best transfer switch 50 amp for generator to house in 2026

Last Updated - 6/28/2026

🏆Best Choice

KTOEBYCO

NEMA 14-50P to L14-30R Generator Transfer Switch Adapter Cord, 50A Male to 30A Female 250V/125V Generator RV EV Dryer House Adapter Plug, Twist Lock 4-Prong, STW 10AWG Heavy Duty Cable, 18 Inch

9.8

ChoiceComparer.com Score

9.8

/ 10

Outstanding

Main highlights

•Heavy Duty & Durable Construction: This 1.5ft adapter cord with a 50A (NEMA 14-50P) male to 30A (NEMA L14-30R) female 4-prong twist lock is made from pure copper wiring coated with heavy-duty, flame-retardant, and UV-resistant materials. The 10AWG 3C STW cable supports up to 30A of power, ensuring durability and reliable performance for demanding power needs.
•Superior Performance & Specifications: Equipped with a 30A, 125V/250V NEMA L14-30R 4-prong locking female outlet, this adapter securely connects your generator to your house or RV power system, ensuring a stable and safe power transfer. 100% copper wiring for efficient power transfer and added safety.
•Extended Durability & Easy Use: The male NEMA 14-50P power adapter features an ergonomic handle for a comfortable grip, making it easy to safely plug and unplug the connector, even in tight spaces. 90-degree bend design reduces stress on the power cord and maintains its flexibility.
•Ideal for Your All Power Needs: Designed for RV parks and generator power sockets, this NEMA 14-50P adapter features a 4-prong straight-blade male plug, making it perfect for RV campground connections and household EV charging stations, supporting both 125V and 250V power.
•ETL Listed for Safety & Compliance: ETL certified, this generator-to-RV/home power converter meets safety standards, ensuring safe and reliable operation. Perfect for temporarily supplying power from a generator to a manual switch box in emergency situations or during power outages. If you're not completely satisfied, simply contact us for refund or replacement.

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$24.19

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Kanayu

Kanayu 10ft Generator Transfer Switch Adapter Cord Compatible with Nema 14-50p to L14-30r, 4 Prong 50amp to 30 Amp Generator to House Inlet Box Adapter, STW 10 Awg, Etl Listed

9.7

ChoiceComparer.com Score

9.7

/ 10

Outstanding

Main highlights

•Generator Transfer Switch Adapter Cord: our 10fT power adapter cord compatible with NEMA 14-50P plug and L14-30R lock female receptacle to ensure secure and reliable connections; Nice for the generator which is without an L14-30R receptacle to the house from 14-50P outlet on the generator; 14-50P to L14-30R support max 30 Amp overload, 250V, max 3750 watts
•14-50P Male Plug: this is a 4 prong male plug compatible with NEMA 14-50P and has a capacity of 30 Amps; 30 Amp 14-50P plug for RV camper trailer with grip handle, easy to push and pull; A must if your power generator is without an L14-30R receptacle; Nice for the generator to the house from 14-50P outlet on the generator; Easy to use, no assembly required
•L14-30R Female Connector: this is a 4 prong female connector that can be locked securely into place at the generator end, designed for L14-30 plugs; The strain relief structure makes the adapter cord be able to lock in for safety and reduce loose that avoid abrupt power disconnection; It is most frequently utilized with generators
•Cable Built to Last: this 30 Amp 3 prong to 4 prong generator plug adapter cord boasts a molded plug, copper wiring coating, flame retardant and UV resistant materials to ensure the durability, and the 3 conductor 10 AWG construction, plus an indoor or outdoor waterproof jacket, can effectively avoid surface oxidation, making it an ideal choice for outdoor usage
•Enhanced Safety with Easy to Find Yellow Design: our 30 amp generator transfer switch adapter cord is well designed in the yellow color, bright and noticeable, so you don't have to worry about searching for your charging equipment in the dark, helping to reduce the risk of accidents in dimly lit spaces like garages, gardens and more, allowing you to stay safe and enjoy peace of mind during the charging process

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$42.99

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Generator Transfer Switch,50A Pro/Tran2 10-Circuit 2 Manual Transfer Switch,Marked（2025）

9.5

ChoiceComparer.com Score

9.5

/ 10

Outstanding

Main highlights

•Current rating 50 Amps,operating voltage 240 volts,need some basic knowledge on electrical circuits
•Marks or tags on wires,its performance, convenience,and cost-effectiveness compared to pricier alternatives is best
•Contact type:normally open,terminal,normally open,supports up to 10 circuits for reliable power transfer.Great for whole-house backup or RV/off-grid applications
•Item dimensions:L x W x H:11.75 x 4.5 x 11 inches,make setup fast—even for DIY users with basic wiring experience

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$249.99

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LAZMUMI

LAZMUMI Generator Transfer Switch Adapter Cord, 14-50P Male to L14-30R Female, 50 Amp to 4 Prong Generator Plug Adapter, Generator to House Adapter Cord, 50Amp STW 10 AWG(1.5FT)

9.4

ChoiceComparer.com Score

9.4

/ 10

Excellent

Main highlights

•【Electrical Rating】50Amp 4 prong NEMA 14-50P male plug,NEMA L14-30R female plug,50A to 30A generator power adapter, 1.5 Feet
•【Superior Specification】Heavy duty 10 Gauge power cord ,rated to support up to 3750 watts at 125V or 7500 watts at 250V (Attension: Generator L14-30 female max loading 30 amp only)
•【Mutiple Use】This 50A to 30A portable power adapter is an must accessory to connect a transfer panel switch from a generator, or power an RV or a portable power distribution box
•【Superior Durability】Pure copper wiring coated with a heavy duty flame retardant, heat resistant, UV resistant PVC , suitable for various harsh environments, ETL-listed
•【Grip Design】The 14-50P plug comes with grip handles, Easily and safely to plug in and plug out

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$24.99

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MECMO

MECMO NEMA 14-50P to L14-30R Generator Transfer Switch Adapter Cord ETL Listed, 240V/120V Generator to House 50 Amp Male to 30 Amp Female Twist Lock 4 Prong Generator Plug Adaptor for Power Backup

9.2

ChoiceComparer.com Score

9.2

/ 10

Excellent

Main highlights

•14-50P to L14-30R Adapter: - 120/240V 50A to 30A Generator to Transfer Switch Power Adapter connect the 4 prong Nema 14-50P male plug to the 14-30R female, 50Amp Male to 30Amp Female Generator Plug allow a device with a L14-30 plug or transfer switch to receive power
•RV Generator 50 Amp: - NEMA 14-50P for RV Campground or Generator Power Socket; 4-prong straight-blade male plug; The 50 amp, 125/250 Volt, 14-50 connection can typically be found in RV parks, household EV charging stations, and on generators
•NEMA L14-30R Female Connector: - 30 Amp 125V/250V NEMA L14-30R 4 prong generator or house transfer switch locking female outlet connector, for instant power backup
•Heavy Duty: - Generator Transfer Switch Adapter Cord is about 1.5ft in length Molded plug with pure copper wiring coated wire, heavy duty flame retardant, UV-resistant, with 10 gauge 3C STW support max 30AMP loading, 125V/3750W, 250V/7500W
•ETL Listed: - ETL certificated Generator to RV/Home power Converter, Can temporarily supply power from the generator to the manual switch box - Model Part：XN1450P-A

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$24.99

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YJMKOI

Upgraded NEMA 14-50P to SS2-50R RV Generator Adapter,50 Amp Twist Lock RV Generator L14-50P to Shore Power SS2-50R for Transfer Switch Power Inlet Box RV Camper Generator to House, 125/250V ETL Listed

9.1

ChoiceComparer.com Score

9.1

/ 10

Excellent

Main highlights

•【Nema 14-50P to SS2-50R】 The 50A twist-lock plug L14-50P is a 4-prong straight-blade male plug; , The 50A SS2-50R with locking ring is a female connector for marine shore power. 50 Amp, 125/250 Volts, Maximum Wattage: 12, 500 Watts
•【50A L14-50P Generator Male Plug】50A 4 Prong L14-50P Male plug for for 50A power outlets commonly found in RV campgrounds, parks, generators, or homes
•【50A Shore Marine Power Female Connector】 For RV Lockout (Marine Style) The SS2-50 twist lock female connector with locking ring easily connects to most power distribution centres, transfer switches and RV/Marine inlets
•【Widely Application】The RV generator plug NEMA L14-50P (male) end can be connected to a 50A generator output; or the SS2-50R (female) end can be connected to a 50A RV power inlet or house's 50A power inlet box. Female receptacle locking (ss2-50r) feature to ensures safe, leak-free power transfer. Fit for connecting a campsite, park or home power supply or generator power to a caravan, trailer, campervan or motorhome with a built-in SS2-50P inlet, etc. or for connecting generator power to your house
•【Upgraded】The L14-50P to SS2-50R Heavy Duty Generator Power Adapter is made of upgraded materials, pure copper wiring, and covered with heavy-duty flame-retardant, heat-resistant PVC, along with a unique design for use in a variety of harsh environments

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$12.99

$19.99

-35%

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Tellegloww

Tellegloww NEMA 14-50P to L14-30R Adapter Cord Generator Transfer Switch, Generator House Inlet Box Adapter, 50Amp 14-50P Male to 30Amp L14-30R Locking Female Generator Cord, 10 AWG, 1FT, ETL Listed

8.9

ChoiceComparer.com Score

8.9

/ 10

Great

Main highlights

•Generator Transfer Switch Adapter: our power adapter cord comes with a plug compatible with NEMA 14-50P and L14-30R lock female receptacle to ensure secure and reliable connections; Suitable for the generator which is without an L14-30R receptacle to the house from 14-50R outlet on the generator; 14-50P to L14-30R support max 30 Amp overload, 250V, max wattage 7500 watts, 12inches, ETL Listed
•14-50P Male Plug: this is a 4 prong male plug that designed to be compatible with NEMA 14-50P outlets and has a capacity of 50 amp; It is most frequently utilized with RV campgrounds, generator power sockets, and home dryer wall sockets; A must if your power generator is without an L14-30R receptacle; Nice for the generator to the house from 14-50R outlet on the generator; Easy to use, no assembly required
•L14-30R Female Connector: this is a 4 prong female connector that can be locked securely into place at the generator end, designed for L14-30 plugs; The strain relief structure makes the adapter cord be able to lock in for safety and reduce loose that avoid abrupt power disconnection; It is most frequently utilized with generator
•Cable Built to Last: designed with durability in mind, our adapter cord boasts a molded plug, copper wiring coating, flame retardant and UV resistant materials; Its 4 conductor (10AWG/4C) construction, coupled with an indoor or outdoor water resistant cover, effectively prevents surface oxidation; This durability ensures longevity and reliability, offering you peace of mind regarding the set's performance and safety
•Enhanced Visibility: the bright yellow color of the 50Amp 14-50P to 30Amp L14-30R adapter cord enhances its visibility, making it easily noticeable even in low light or cluttered environments; This feature adds safety and convenience, allowing you to locate and connect the adapter with ease, especially in dimly lit or crowded charging areas

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$18.99

$19.99

-5%

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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

8.8

ChoiceComparer.com Score

8.8

/ 10

Great

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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$28.99

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LiftCharger

50 Amp Generator to House Hook-up Kit for Square D Homeline 150/200/225 Amp Load Center, Including Generator Cord,Power Inlet Box,Panel Interlock Kit and Circuit Breaker

8.6

ChoiceComparer.com Score

8.6

/ 10

Good

Main highlights

•Convenient and Secure Connection: Designed for easy house hook-up, allowing you to safely connect the generator to your home's electrical load center system to power up any circuit selectted.
•Compatibility: Rated for 50 amps current, this kit fits portable generator with 9000-15000 Watts (7500-12500 Running Watts) output. The interlock set fits Square D homeline 150-225 Amp load center. Instead of using expensive transfer switch to pre-wire certain lines to power, this kit enables you to select and power up any circuit of home appliances and electronics during outages.
•Safe Operation: Equipped with necessary code compliant components like load ceanter interlock to prevent backfeeding and protect utility workers.
•Easy Installation: Includes comprehensive instructions for straightforward setup and integration into your home's electrical panel. You will need to get permit and hire an electrician in most states.
•Quality item with peace in mind: You can rest assure on our heavy duty 1 inch diameter pure cooper conductors ETL certified genertor cord (6AWGx3+8AWG Ground), heavy duty pre-drill inlet box, high quality interlock kit and new squre D 50Amp 2-pole homeline breaker.

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$139.95

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Champion Power Equipment

Champion Power Equipment 50-Amp Indoor-Rated Manual Transfer Switch with 30-Foot Generator Power Cord and Weather-Resistant Power Inlet Box

8.5

ChoiceComparer.com Score

8.5

/ 10

Good

Main highlights

•The 50A power-rated manual switch has 10 available circuits and is indoor rated and UL 1008 certified
•Powers hard-wired circuits meaning no need for extension cords
•Prewired with labeled wires making installation fast, easy, and less costly
•The electronic rocker switch with indicator lights makes the changeover from utility to generator fast, safe, and easy
•Includes 5-year limited warranty with FREE lifetime technical support from dedicated experts

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$684.99

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