Reliance Pro/Tran 2 306D
#18 in 30 AFull review
The bare bones six circuit Pro/Tran 2. Only worth buying when it is cheaper than the 306C.
Amazon $303.80$303.80
The Reliance Pro/Tran 2 306D is the better transfer switch overall, rated 3.3 to 3.0. The Nature's Generator 120V 30A 6-Circuit costs $23.81 less ($279.99 vs $303.80).
Nature's Generator 120V 30A 6-Circuit
#20 in 30 AFull review
A 120 V switch for a power station or small generator without a 240 V outlet. Skip it if you need to run any 240 V appliance.
Amazon $279.99$279.99
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.
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 306D | Nature's Generator 120V 30A 6-Circuit |
|---|---|---|
| Overall rating | 3.3/5 | 3.0/5 |
| Value 35% | 49 $50.63 per circuit ($303.80, 6 circuits) | 55 $46.66 per circuit ($279.99, 6 circuits) |
| Circuits 25% | 33 6 circuits | 33 6 circuits |
| Features 20% | 25 UL listed | 25 UL listed |
| Warranty 20% | 100 5-year warranty | 50 warranty not published (neutral score used) |
Specifications
| Reliance Pro/Tran 2 306D | Nature's Generator 120V 30A 6-Circuit | |
|---|---|---|
| Switching | ||
| Type | Manual | Manual |
| Circuits | 6 | 6 |
| Generator connection | 30 A | 30 A |
| Max generator | 7,500 W | - |
| Voltage | 120/240 V | 120 V |
| Wattmeters | No | - |
| In the box | ||
| Inlet | none (wire to a separate inlet box) | L5-30 on the switch |
| Inlet box included | No | No |
| Generator cord included | No | Yes |
| Build | ||
| Outdoor rated | No | No |
| UL listed | Yes | Yes |
| Warranty | 5 years | - |