EmerGen EGS107501G2 10-Circuit
#1 in 30 AFull review
A low cost 10 circuit switch with meters and a rainproof cabinet. A strong value for a 30 A generator if you supply the inlet and cord.
Amazon $283.99$283.99
A transfer switch lets a portable generator or power station power a home’s own circuits, the furnace, well pump, fridge and lights, without extension cords and without feeding power back into the grid, where it can kill a line worker. These rankings compare what the makers publish on the same terms: how many circuits you get for the money, how many circuits it switches, what’s included and how long it’s covered.
Circuits set how much of the house the generator can reach. A 6 circuit switch covers the essentials; 10 circuits add more rooms; 16 circuits on a 50 A switch approach a small subpanel. 30 A switches pair with generators up to about 7,500 W that have an L14-30 outlet, and 50 A switches with generators up to 12,500 W.
Most switches are manual: you start the generator, plug in and flip each circuit over. Automatic switches for portable generators and power stations do it on their own when the grid drops. A licensed electrician should install any transfer switch, and many areas require a permit.
Top Picks
Shop by Rating
30 A
20 rankedSwitches for generators up to 7,500 W with a 30 A L14-30 outlet, for the essentials: fridge, furnace, well pump and lights.
Top rated: EmerGen EGS107501G2 10-Circuit $283.99
50 A
8 rankedSwitches for generators up to 12,500 W with a 50 A outlet, for more circuits and 240 V loads like a well pump or central air.
Top rated: VEVOR 50A 10-Circuit Transfer Switch $199.90
Narrow It Down
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 30 A Generator Transfer Switches
- EmerGen EGS107501G2 10-Circuit#1 of 20Full review
A low cost 10 circuit switch with meters and a rainproof cabinet. A strong value for a 30 A generator if you supply the inlet and cord.
Amazon $283.99$283.99107,500 WManual - EmerGen EGS107501G2KIT 10-Circuit Kit#2 of 20Full 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 31410B#3 of 20Full review
The cheapest way into a 10 circuit Reliance switch, sold by Amazon. Pick it if you already have an inlet box and cord and can live without meters.
Amazon $299.99$299.99107,500 WManual - Reliance Controls 30310A#4 of 20Full review
A 10 circuit Reliance switch with meters and a built in inlet, sold by Amazon. Best when the switch can sit in a garage near the generator.
Amazon $384.74$384.74107,500 WManual - Reliance Controls 31410CRK#5 of 20Full 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
Best 50 A Generator Transfer Switches
- VEVOR 50A 10-Circuit Transfer Switch#1 of 8Full 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 Automatic#2 of 8Full review
An automatic 50 A switch with room for 24 circuits, aimed at battery and solar backup. Budget for breakers and an electrician.
Amazon $499.99$499.9924-Automatic - Nature's Generator 50A 12-Circuit#3 of 8Full 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 - Reliance Pro/Tran 2 510D#4 of 8Full review
A plain 10 circuit 50 A switch for a large generator. Choose it over meter models only when price matters most.
Amazon $467.30$467.301012,500 WManual - Champion 201193 50A 10-Circuit#5 of 8Full review
A complete 50 A kit with a long cord for a large generator. Pricey, but nothing else needs buying.
Amazon $645$64510-Manual
How We Rank
Each switch is ranked against others of the same rating, and scored on its price per circuit, its number of circuits, its features and its warranty.
| Factor | Measures | Weight |
|---|---|---|
| Value | price per circuit | 35% |
| Circuits | circuits switched | 25% |
| Features | wattmeters, inlet box included, outdoor rated, UL listed | 20% |
| Warranty | warranty length | 20% |
How we rank explains each factor in full.