Reliance Controls PB30 30A Power Inlet Box Review
The weatherproof outdoor socket your generator cord plugs into.
The verdict
If your transfer switch or interlock didn't come with one, the PB30 is the standard 30A inlet: mount it outside near where the generator will run, wire it to the switch, done. Solid aluminum, made in the USA, fits L14-30 cords. Unremarkable and essential.
Typical price: ~$69 (typical street price — current price shown on Amazon)
Buy on AmazonWhat we like
- +All-aluminum, genuinely weatherproof enclosure
- +L14-30P inlet matches the standard 30A generator cord
- +Surface or flush mount
- +The boring, correct choice electricians default to
What to know
- −30A only — 50A setups need the larger PB50 instead
- −No cord included
Full review
The inlet box is the piece people forget until the electrician's quote includes a mystery line item. Mount it on the exterior wall nearest your generator's running spot — remember the 20-foot-from-openings CO rule when choosing — and keep the cord run short; voltage drop on long 30A runs is real.
Best for: Completing any 30A interlock or transfer-switch installation.
Specifications
| Rating | 30A, 125/250V |
|---|---|
| Inlet | L14-30P (flanged) |
| Material | Powder-coated aluminum |
| Mount | Surface or flush |
| Origin | Made in USA |
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~$69 typical price
Buy on AmazonAlternatives in Transfer Switches & Installation
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