SURAIELEC 30A NEMA L14-30P Power Inlet Box — Stainless Steel, 3R Rainproof Outdoor Generator Entry

The SURAIELEC 30 Amp Power Inlet Box is a weatherproof stainless-steel NEMA L14-30P inlet designed to bring safe, code-compliant generator power into your home or workshop.

This inlet box converts a standard 4-prong 30 A generator cord into a permanent outdoor power entry point. Built with corrosion-resistant stainless steel and a rainproof 3R enclosure, it accepts 6–12 AWG wiring and supports up to 7,500 watts. The unit’s bottom-facing outlet, removable front panel, and multiple knockouts simplify installation and help keep moisture, debris, and pests out of the connection area.

How does this inlet box protect my outdoor generator connection?

The SURAIELEC inlet uses a 3R-rated enclosure and stainless-steel construction to withstand wet conditions and reduce corrosion over time. A bottom-facing outlet and engineered cable entry holes limit debris and discourage nesting, while the ETL-listed receptacle meets recognized safety standards.

• 3R rainproof enclosure for outdoor installations
• Stainless-steel housing resists rust and physical wear
• Bottom-facing outlet and sealed entry holes reduce water ingress
• ETL-listed 30 A L14-30P receptacle for safety assurance

Will this fit my generator cord and house wiring?

Yes — the inlet accepts standard NEMA L14-30P 4-prong generator cords and is rated for 30 amps, making it compatible with common portable generators. Inside, it supports 6–12 AWG conductors, so it can connect directly to a transfer switch or distribution panel with the appropriate wiring and conduit.

• Compatible with NEMA L14-30P 4-prong generator cords
• Rated for 30 A and up to 7,500 watts output
• Accepts 6–12 AWG wire for standard wiring practices
• Multiple knockouts for side and rear conduit entry options

How easy is installation and service access?

The unit was designed for straightforward installation and maintenance: the front panel is removable to access terminals quickly, and there are three knockouts for flexible conduit routing. Installers can choose side or rear entries to align with existing conduit, and the stainless housing stays serviceable longer than molded plastic boxes.

• Detachable front panel for fast terminal access
• Three convenient knockouts for multiple conduit directions
• Bottom-facing outlet simplifies cord routing and keeps debris away
• Durable stainless-steel faceplate reduces replacement frequency

What kind of locations and conditions is this inlet suited for?

Designed for outdoor use, the inlet box performs well in wet and variable climates thanks to its 3R enclosure rating and stainless construction. It’s appropriate for homes, garages, workshops, RV pedestal conversions, and backup power setups where a secure, weatherproof generator connection is needed.

• Outdoor residential installations and backup-power connections
• Garages, workshops, and small commercial exterior walls
• RV and recreational power inlet retrofits where code permits
• Locations requiring corrosion resistance and rain protection

Who is this for: The SURAIELEC 30 Amp Power Inlet Box is aimed at homeowners, electricians, and contractors who need a durable, code-aware outdoor generator inlet. If you want a rust-resistant stainless-steel enclosure, ETL-listed L14-30P compatibility, and installation flexibility with side or rear knockouts, this unit offers a practical, long-lasting solution for bringing generator power safely into a building.