A small Reliance switch with meters and its own inlet for a garage or utility room install. Fine for a few essentials on a 30 A generator.
Amazon $299
The bare bones six circuit Pro/Tran 2. Only worth buying when it is cheaper than the 306C.
- 6Circuits
- 7,500 WMax generator
- none (wire to a separate inlet box)Connection
- 5 yearsWarranty
Price checked October 31, 2026. As an Amazon Associate we earn from qualifying purchases.
- Simple six circuit switch from the best known maker
- Standard 1 in breakers are easy to swap for different circuit sizes
- UL 1008 listed with a five year warranty
- No meters and no inlet, yet priced like the 306C that has meters
- Needs a separate inlet box and cord
The Reliance Pro/Tran 2 family
Every Reliance Pro/Tran 2 model we rank, smallest first. Ratings compare each against its own rating.
| Model | Circuits | Rating | Price |
|---|---|---|---|
| Reliance Pro/Tran 2 306D (this one) | 6 | 3.3/5 | $303.80 |
| Reliance Pro/Tran 2 306C | 6 | 3.5/5 | $299.95 |
| Reliance Pro/Tran 2 306A | 6 | 3.5/5 | $299 |
| Reliance Pro/Tran 2 R306A Outdoor | 6 | 3.6/5 | $308.70 |
| Reliance Pro/Tran 2 306CRK | 6 | 3.5/5 | $345.71 |
| Reliance Pro/Tran 2 506C | 6 | 3.0/5 | $348.10 |
| Reliance Pro/Tran 2 310C | 10 | 4.2/5 | $429 |
| Reliance Pro/Tran 2 A310A | 10 | 4.0/5 | $518.40 |
| Reliance Pro/Tran 2 510D | 10 | 3.4/5 | $467.30 |
How it scores
The rating comes from 4 measured or published factors, each scored 0-100 against fixed reference points for its rating. How we rank explains each one.
Specifications
| Model number | 306D |
|---|---|
| Switching | |
| Type | Manual |
| Circuits | 6 |
| Generator connection | 30 A |
| Max generator | 7,500 W |
| Voltage | 120/240 V |
| Wattmeters | No |
| In the box | |
| Inlet | none (wire to a separate inlet box) |
| Inlet box included | No |
| Generator cord included | No |
| Build | |
| Outdoor rated | No |
| UL listed | Yes |
| Warranty | 5 years |
Alternatives in this rating
The six circuit Pro/Tran 2 with meters, for someone who already has an inlet box. The 306CRK kit adds the box and cord for not much more.
Amazon $299.95A budget switch and inlet box kit for a 30 A generator. The short warranty and thin specs make the Connecticut Electric kit a safer choice.
Amazon $339.99Compare
Compare the Reliance Pro/Tran 2 306D with any other transfer switch →
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