The 10 circuit Pro/Tran 2 set up for two 30 A 240 V loads out of the box. Worth the premium only if you need those breakers.
Amazon $518.40The Reliance Pro/Tran 2 A310A is the better transfer switch overall, rated 4.0 to 3.9. The Reliance Pro/Tran 2 A310A leads on features. The Nature's Generator 30A 12-Circuit wins on value. The Nature's Generator 30A 12-Circuit costs $138.41 less ($379.99 vs $518.40).
The most circuits for the money on a 30 A generator or 240 V power station. A good pick when you want to switch many small circuits.
Amazon $379.99Prices 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.
Which should you buy?
- Choose the Reliance Pro/Tran 2 A310A for features (wattmeters, UL listed vs UL listed).
- Choose the Nature's Generator 30A 12-Circuit for value ($31.67 per circuit ($379.99, 12 circuits) vs $51.84 per circuit ($518.40, 10 circuits)).
Scores side by side
Each factor is scored 0-100 against the same fixed reference points for every 30 A transfer switch; a clear win is highlighted. How we rank explains each one.
| Factor weight | Reliance Pro/Tran 2 A310A | Nature's Generator 30A 12-Circuit |
|---|---|---|
| Overall rating | 4.0/5 | 3.9/5 |
| Value 35% | 47 $51.84 per circuit ($518.40, 10 circuits) | 83 $31.67 per circuit ($379.99, 12 circuits) |
| Circuits 25% | 100 10 circuits | 100 12 circuits |
| Features 20% | 50 wattmeters, UL listed | 25 UL listed |
| Warranty 20% | 100 5-year warranty | 50 warranty not published (neutral score used) |
Specifications
| Reliance Pro/Tran 2 A310A | Nature's Generator 30A 12-Circuit | |
|---|---|---|
| Switching | ||
| Type | Manual | Manual |
| Circuits | 10 | 12 |
| Generator connection | 30 A | 30 A |
| Max generator | 7,500 W | - |
| Voltage | 120/240 V | 120/240 V |
| Wattmeters | Yes | - |
| In the box | ||
| Inlet | L14-30 on the switch | L14-30 on the switch |
| Inlet box included | No | No |
| Generator cord included | No | Yes |
| Build | ||
| Outdoor rated | No | - |
| UL listed | Yes | Yes |
| Warranty | 5 years | - |
