Nature's Generator 50A Automatic
#2 in 50 AFull 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$499.99
The Nature's Generator 50A Automatic is the better transfer switch overall, rated 3.8 to 3.4. The Nature's Generator 50A Automatic leads on value and circuits. The Reliance Pro/Tran 2 510D wins on warranty. The Reliance Pro/Tran 2 510D costs $32.69 less ($467.30 vs $499.99).
Reliance Pro/Tran 2 510D
#4 in 50 AFull 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$467.30
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.
Which should you buy?
- Choose the Nature's Generator 50A Automatic for value ($20.83 per circuit ($499.99, 24 circuits) vs $46.73 per circuit ($467.30, 10 circuits)) and circuits (24 circuits vs 10 circuits).
- Choose the Reliance Pro/Tran 2 510D for warranty (5-year warranty vs 1-year warranty).
Scores side by side
Each factor is scored 0-100 against the same fixed reference points for every 50 A transfer switch; a clear win is highlighted. How we rank explains each one.
| Factor weight | Nature's Generator 50A Automatic | Reliance Pro/Tran 2 510D |
|---|---|---|
| Overall rating | 3.8/5 | 3.4/5 |
| Value 35% | 100 $20.83 per circuit ($499.99, 24 circuits) | 55 $46.73 per circuit ($467.30, 10 circuits) |
| Circuits 25% | 100 24 circuits | 40 10 circuits |
| Features 20% | 25 UL listed | 25 UL listed |
| Warranty 20% | 0 1-year warranty | 100 5-year warranty |
Specifications
| Nature's Generator 50A Automatic | Reliance Pro/Tran 2 510D | |
|---|---|---|
| Switching | ||
| Type | Automatic | Manual |
| Circuits | 24 | 10 |
| Generator connection | 50 A | 50 A |
| Max generator | - | 12,500 W |
| Voltage | 120/240 V | 120/240 V |
| Wattmeters | - | No |
| In the box | ||
| Inlet | CS6375 | none (wire to a separate inlet box) |
| Inlet box included | No | No |
| Generator cord included | Yes | No |
| Build | ||
| Outdoor rated | - | No |
| UL listed | Yes | Yes |
| Warranty | 1 year | 5 years |