The Reliance Controls 31410CRK rates 4.3 among 30 A transfer switchs; the Reliance Pro/Tran 2 510D rates 3.4 among 50 A ones. The Reliance Pro/Tran 2 510D costs $6.69 less ($467.30 vs $473.99).
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 $473.99A plain 10 circuit 50 A switch for a large generator. Choose it over meter models only when price matters most.
Amazon $467.30Prices 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.
These two sit in different rating classes (30 A and 50 A), and each is scored against the reference points for its own class, so a rating says how well each does among its own rating peers. How we rank explains each factor.
| Factor weight | Reliance Controls 31410CRK | Reliance Pro/Tran 2 510D |
|---|---|---|
| Overall rating | 4.3/5 | 3.4/5 |
| Value 35% | 54 $47.40 per circuit ($473.99, 10 circuits) | 55 $46.73 per circuit ($467.30, 10 circuits) |
| Circuits 25% | 100 10 circuits | 40 10 circuits |
| Features 20% | 75 wattmeters, inlet box included, UL listed | 25 UL listed |
| Warranty 20% | 100 5-year warranty | 100 5-year warranty |
| Reliance Controls 31410CRK | Reliance Pro/Tran 2 510D | |
|---|---|---|
| Switching | ||
| Type | Manual | Manual |
| Circuits | 10 | 10 |
| Generator connection | 30 A | 50 A |
| Max generator | 7,500 W | 12,500 W |
| Voltage | 120/240 V | 120/240 V |
| Wattmeters | Yes | No |
| In the box | ||
| Inlet | L14-30 | none (wire to a separate inlet box) |
| Inlet box included | Yes | No |
| Generator cord included | Yes | No |
| Build | ||
| Outdoor rated | No | No |
| UL listed | Yes | Yes |
| Weight | 15 lb | - |
| Warranty | 5 years | 5 years |
