WELLUCK 30A Generator Inlet Box NEMA L14-30P - Weatherproof Galvanized Steel, Front-Access 125/250V

The WELLUCK 30 Amp Generator Inlet Box is a weatherproof, ETL-listed outdoor power inlet designed to accept NEMA L14-30P 4-prong generator cords for safe 125/250V backup power connections up to 7,500W.

When you need a dedicated, durable inlet to connect a portable generator to a home transfer switch or panel, this inlet box provides a tidy, code-friendly interface. Engineered from galvanized steel with a 3R rainproof rating and an anti-rust finish, the WELLUCK inlet keeps connections safe from moisture, debris, and outdoor wear while offering larger internal wiring space for easier installation.

How does the inlet box keep outdoor power connections safe?

The WELLUCK box uses a metal 3R rainproof enclosure and a large protective cover to block rain, dust, and UV exposure. A specialized outlet design limits debris entry and improves airflow, helping reduce heat buildup around terminals.

• Galvanized steel body with anti-rust coating for long-term durability
• Large cover seals the inlet to keep out water and dust
• Outlet cable-entry holes reduce foreign matter accumulation
• 3R rating suitable for typical outdoor generator installations

What makes installation faster and less cramped?

This inlet box increases available wiring space by roughly 50% compared with many standard boxes, so routing and connecting 10 AWG conductors is easier. The front-disassembly design allows quick access for wiring and inspection without removing the entire box from the mounting surface.

• Generous internal cavity for neat, code-compliant terminations
• Front-access removable faceplate simplifies wiring and maintenance
• Supports up to 10 AWG conductors for 30A service
• Multiple drilled mounting options reduce wire bending

Will this inlet box work with my transfer switch or panel?

Yes—WELLUCK designed the box with versatile attachment points to make connections to transfer switches, panels, or conduits straightforward. Four 1.2-inch drilled holes (left, right, bottom, rear) let you choose the best routing path and minimize tight bends that strain cables.

• Compatible with standard NEMA L14-30P generator cords
• Four conduit/mounting entry options for flexible placement
• Secure terminal layout for reliable, low-resistance connections
• ETL-listed for safety and performance verification

How much power can I safely run through it?

The WELLUCK inlet accepts a 30A, 4-prong L14-30P cord and is rated for 125/250V service at up to 7,500W. Use appropriately sized conductors (max 10 AWG for this kit) and follow local electrical codes and transfer switch manufacturer instructions for safe operation.

• 30 Amp, 125/250V capacity — suitable for many residential backup scenarios
• Rated to handle up to 7,500 watts continuous load within wire and transfer limits
• Install with 10 AWG wire maximum as specified
• ETL listing indicates third-party testing for safe use

Who is this for? The WELLUCK 30 Amp Generator Inlet Box is aimed at homeowners, contractors, and RV or workshop owners who need a reliable outdoor inlet to connect a portable generator to a transfer switch or panel. It’s ideal for anyone looking for easier installations, improved weather resistance, and a durable, service-friendly inlet for emergency or backup power setups. If you maintain a standby generator or perform outdoor electrical work, this inlet box streamlines connections while protecting components from the elements.