Backup power starts with a transfer switch: it sits between your portable generator and the circuits you want to keep alive, so you don't have to run extension cords everywhere or risk backfeeding the utility line. The harder question is which switch to buy. These four listings are all built around the 7,500-watt portable-generator range, but they stop at different places: one is a used six-circuit switch with a power-inlet box, two are new 10-circuit switches, and the fourth is an open-box 10-circuit kit that includes an inlet and a generator cord.
Quick take
If you want the lowest listed price and are comfortable with a used, untested unit, the Reliance Pro/Tran 2 with PB30 inlet is the entry point at USD 135.00. If you prefer a new 10-circuit switch, the 31410CRK 10-Circuit Kit at USD 181.03 gives you the 10-circuit layout without an inlet or cord in the listing. The 31410CRK 30A Conversion Switch at USD 179.60 is the other new 10-circuit option. And if you want the most complete listed package, the open-box 30A kit at USD 232.99 includes an inlet box, a 10-foot L14-30 cord, watt meters, and backfeed protection.
Listed-price comparison
The table below shows each listing's price and how the listed prices compare with each other.
| Product | Listed price | Price bar |
|---|---|---|
| Reliance Pro/Tran 2 6-Circuit PB30 | USD 135.00 | |
| 31410CRK 10-Circuit Kit | USD 181.03 | |
| 31410CRK 30A Conversion Switch | USD 179.60 | |
| 30A 10-Circuit Kit with L14-30 Cord | USD 232.99 |
The listed-price spread runs from USD 135.00 to USD 232.99, so the decision comes down to how much completeness and condition matter to you.
Decision matrix
- Lowest listed price, used/untested: Reliance Pro/Tran 2 6-Circuit with PB30 inlet at USD 135.00.
- New 10-circuit switch: 31410CRK 10-Circuit Kit at USD 181.03.
- New 30A conversion switch: 31410CRK 30A Conversion Switch at USD 179.60.
- Complete listed package: 30A 10-Circuit Kit with inlet, L14-30 cord, and backfeed protection at USD 232.99.
Product notes
Reliance Pro/Tran 2 6-Circuit 30A 7500W with PB30 Inlet
This listing pairs the Reliance Pro/Tran 2 six-circuit transfer switch with a Reliance Controls PB30 30A power-inlet box. You also get dual watt meters and individual circuit switches, which are helpful for keeping an eye on load as you live through an outage. The trade-off is the condition: it is a used unit sold untested and as-is, with the seller noting no guarantee that it works. That makes it the lowest listed price in the group at USD 135.00, but it also means the buyer should be prepared to evaluate or repair the unit before relying on it.
31410CRK 10-Circuit Transfer Switch Kit
This new 10-circuit kit is listed at USD 181.03. The description includes an 18-inch flexible conduit whip for load-center connection, a powder-coated steel cabinet, and support for up to 10 single-pole or five double-pole circuits. A 1-year manufacturer warranty is listed, as is U.S. origin. It is designed for generators up to 7,500 maximum running watts. On its own, the listing covers the switch side of a backup-power setup. If you already have a power-inlet box and a generator cord, that may be all you need to add to the switch.
Generator Transfer Switch 31410CRK 30A Conversion Switch
Listed at USD 179.60, this new 30A 10-circuit conversion switch is priced just below the 31410CRK kit. The description points to a flexible conduit whip, a powder-coated steel cabinet, and support for 10 single-pole or five double-pole circuits. It is made in the United States and carries a 1-year manufacturer warranty. As a 30A conversion switch for 7,500W generators, it fits the same class of use. For a listing that explicitly includes an inlet and cord, the open-box kit below is the one to compare.
30A Generator Transfer Switch Kit, 10-Circuit, 7500W
This open-box kit is the highest listed price at USD 232.99, but it is also the listing with the most included parts. The description mentions an inlet box, a 10-foot L14-30 cord, dual watt meters, and backfeed protection, plus ON-OFF-ON operation and 10-circuit control for up to 7,500W. If you want one package that lists the switch and the connection parts together, this is the one to compare against the new 10-circuit switches. The two things to weigh are the open-box condition and the higher listed price relative to the other three listings.
Final recommendation by use case
- If you want to spend the least and are comfortable with a used unit: go with the Reliance Pro/Tran 2 6-Circuit with PB30 inlet at USD 135.00.
- If you want a new 10-circuit switch with a warranty: the 31410CRK 10-Circuit Kit at USD 181.03 is the one to focus on.
- If you want a new 30A conversion switch at the lowest listed price in that pair: the 31410CRK 30A Conversion Switch at USD 179.60 fits.
- If you want the most complete listed package with inlet and cord: the 30A 10-Circuit Kit at USD 232.99 is the option that names those parts.
