Kits that include the outdoor power inlet box the generator cord plugs into.
Prices were last checked October 31, 2026 and are subject to change; the price and availability shown by the retailer at the time of purchase apply.
Best Transfer Switch Kits with Power Inlet: 30 A
- EmerGen EGS107501G2KIT 10-Circuit Kit#1 of 8Full review
A complete 10 circuit kit with meters for less than the Reliance and Generac kits. A smart buy for most 30 A generator owners.
Amazon $377$377107,500 WManual - Reliance Controls 31410CRK#2 of 8Full review
The classic complete kit for a 30 A generator: switch, inlet box and cord, with meters to balance the load. A good pick for a homeowner who wants one part number to hand an electrician.
Amazon $473.99$473.99107,500 WManual - Nature's Generator 30A Automatic#3 of 8Full review
An automatic switch for a power station or a generator, with lots of circuit space. Best paired with a battery that is always ready to take the load.
Amazon $399.99$399.9916-Automatic - Champion 201192 30A 8-Circuit#4 of 8Full review
A complete 30 A kit with an unusually long cord and easy rocker switching. Good for owners who want the generator parked well away from the house.
Amazon $479$4798-Manual - Generac HomeLink 6854 30A Kit#5 of 8Full review
The complete HomeLink kit with an aluminum inlet box, ready for an electrician to install. A good one box buy for a 30 A generator owner who may go standby later.
Amazon $412.81$412.818-Manual - Generac HomeLink 6853 30A Kit#6 of 8Full review
The complete HomeLink kit with a resin inlet box. Buy whichever of the 6853 and 6854 is cheaper on the day.
Amazon $418.87$418.878-Manual - Reliance Pro/Tran 2 306CRK#7 of 8Full review
The Pro/Tran 2 successor to the popular 31406CRK, with everything needed for a small backup setup. A good fit for a fridge, furnace and a few lights on a 30 A generator.
Amazon $345.71$345.7167,500 WManual - Westinghouse WMTS30A10C 30A Kit#8 of 8Full review
A budget switch and inlet box kit for a 30 A generator. The short warranty and thin specs make the Connecticut Electric kit a safer choice.
Amazon $339.99$339.9987,500 WManual
Best Transfer Switch Kits with Power Inlet: 50 A
- VEVOR 50A 10-Circuit Transfer Switch#1 of 3Full review
A very cheap 50 A kit with meters and an outdoor enclosure. Check with your inspector first, since VEVOR states no safety listing.
Amazon $199.90$199.901012,500 WManual - Nature's Generator 50A 12-Circuit#2 of 3Full review
A complete 50 A kit with more circuits than the big names for less money. A strong value for a large generator.
Amazon $479.99$479.9912-Manual - Champion 201193 50A 10-Circuit#3 of 3Full review
A complete 50 A kit with a long cord for a large generator. Pricey, but nothing else needs buying.
Amazon $645$64510-Manual