Reliance Controls PB30 30-Amp NEMA 3R Power Inlet Box, Gray — Outdoor, Weatherproof for Generators up to 7,500W

Reliance Controls PB30 is a weatherproof 30-amp NEMA 3R power inlet box built to connect portable generators up to 7,500 running watts directly to transfer switches or electrical panels.

This powder‑coated steel inlet box removes the need to run extension cords through doors or windows by providing a dedicated, lockable outdoor connection point. Designed for exterior installation, the PB30 features a rain‑tight cover, rust‑resistant finish and internal push‑in wiring terminals that simplify hookup to your home transfer switch or panel. It’s cUL 1008 listed and backed by a five‑year warranty, making it a practical choice for homeowners and contractors who need a reliable generator inlet.

How does the PB30 protect connections from weather and corrosion?

The PB30 is built with a NEMA 3R rating for outdoor use and a powder‑coated steel housing that resists rust and fading. The inlet uses a rain‑tight cover and a secure NEMA L14‑30P plug configuration to keep moisture out of terminals and provides a durable exterior finish for long service life.

• Powder‑coated steel resists corrosion and wear.
• Rain‑tight lid prevents water intrusion into the inlet.
• NEMA 3R rating suitable for exterior wall mounting.
• cUL 1008 listing for recognized electrical safety standards.

What wiring and installation options does it offer?

The box includes six knockouts and four combination 1/2"–3/4" knockouts to match conduit or cable sizes, allowing flexible routing to transfer switches or panels. A removable faceplate makes it easier to access generous internal wiring space and push‑in terminals for faster connections during rough‑in and final wiring.

• Four combination 1/2" and 3/4" knockouts (sides, bottom, back) for conduit or cable entry.
• Push‑in wire connections speed electrical hookup without additional lugs.
• Generous internal wiring room simplifies rough‑in and finalizing connections.
• Faceplate removable to ease installation and inspection.

Which generators and transfer switches is the PB30 compatible with?

The PB30 is specified for generator systems up to 7,500 running watts and uses a 30‑amp NEMA L14‑30P inlet plug, the common standard for many home portable generators. It is intended to be hardwired to Reliance Controls transfer switches or directly to panels, eliminating extension cords and creating a safer, code‑friendly connection point.

• Rated for generators up to 7,500 running watts.
• Includes NEMA L14‑30P inlet plug for 30‑amp four‑pole connections.
• Designed to connect directly to Reliance Controls transfer switches or panels.
• Mounts outdoors to provide a dedicated generator inlet location.

What features help ensure a safe, code‑compliant installation?

The PB30 carries a cUL 1008 listing and is constructed to meet outdoor electrical equipment requirements, which supports compliance with local code for generator inlet installations. Its sturdy housing, labeled terminals and standardized inlet configuration reduce installation errors and help electricians deliver a neat, professional job.

• cUL 1008 listed for recognized safety and performance standards.
• Standardized NEMA inlet reduces wiring mistakes.
• Clear access and labeling inside the box for safer connections.
• Five‑year warranty for product reliability and installer confidence.

Who is this for? The Reliance Controls PB30 is aimed at homeowners, electricians and contractors who want a permanent, weatherproof inlet for portable generators up to 7,500 running watts. It suits installations where a reliable, code‑friendly connection to a transfer switch or panel is needed — especially for users who prefer a clean exterior fit, corrosion resistance and simplified wiring access.