Reliance Pro/Tran 2 R306A Outdoor
#10 in 30 AFull review
An outdoor six circuit switch that doubles as the inlet, so the generator plugs straight into it. Good for houses where the panel is on an outside wall or in a garage.
Amazon $308.70$308.70
The Reliance Pro/Tran 2 R306A Outdoor rates 3.6 among 30 A transfer switchs; the Reliance Pro/Tran 2 506C rates 3.0 among 50 A ones. The Reliance Pro/Tran 2 R306A Outdoor costs $39.40 less ($308.70 vs $348.10).
Reliance Pro/Tran 2 506C
#7 in 50 AFull review
An affordable 50 A Reliance switch for a large generator that only needs to run a few heavy circuits.
Amazon $348.10$348.10
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
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 Pro/Tran 2 R306A Outdoor | Reliance Pro/Tran 2 506C |
|---|---|---|
| Overall rating | 3.6/5 | 3.0/5 |
| Value 35% | 48 $51.45 per circuit ($308.70, 6 circuits) | 39 $58.02 per circuit ($348.10, 6 circuits) |
| Circuits 25% | 33 6 circuits | 0 6 circuits |
| Features 20% | 75 wattmeters, outdoor rated, UL listed | 50 wattmeters, UL listed |
| Warranty 20% | 100 5-year warranty | 100 5-year warranty |
Specifications
| Reliance Pro/Tran 2 R306A Outdoor | Reliance Pro/Tran 2 506C | |
|---|---|---|
| Switching | ||
| Type | Manual | Manual |
| Circuits | 6 | 6 |
| Generator connection | 30 A | 50 A |
| Max generator | 7,500 W | 12,500 W |
| Voltage | 120/240 V | 120/240 V |
| Wattmeters | Yes | Yes |
| In the box | ||
| Inlet | L14-30 on the switch | none (wire to a separate inlet box) |
| Inlet box included | No | No |
| Generator cord included | No | No |
| Build | ||
| Outdoor rated | Yes | No |
| UL listed | Yes | Yes |
| Warranty | 5 years | 5 years |