Suplevel 50 Amp EV/RV Power Outlet Box — EV-Grade 14-50R, Lockable Weatherproof Enclosure (ETL Listed)

Rugged, reliable power for EVs and RVs—inside or outside

The Suplevel 50 Amp EV/RV Power Outlet Box blends a tough, weatherproof metal enclosure with an EV-grade 14-50R receptacle. It’s designed to handle frequent plug-ins and longer charging sessions, delivering a stable connection in diverse environments. The combination of a robust shell and a purpose-built outlet helps you charge with confidence, whether you’re at home, on a job site, or on the road.

With a NEMA 14-50R rated for 125/250 VAC and a 3-pole/4-wire configuration, this unit supports reliable, self-grounding operation. The internal design emphasizes durable contact points and a secure fit, so you get dependable performance even when you’re connecting large extension cords or high-current chargers. This is less about speculation and more about a setup that’s built to withstand the demands of EV and RV charging in real-world scenarios.

Designed for safety, security, and convenience

• Lockable & weatherproof: a sturdy swing cover and protective enclosure keep the outlet shielded when not in use, yet accessible when you need a charge.
• ETL-listed: a recognized mark of safety for indoor and outdoor charging performance.
• EV-grade sockets: engineered to handle repeated insertions and longer plugs common with EV chargers, promoting stable connections over time.

Simple, flexible installation

• Three pre-drilled replacement kits on all four sides simplify knockouts and routing across different mounting options.
• Internal hex wiring supports 4 AWG to 10 AWG copper wires, with appropriate torque to ensure a solid, leak-free connection.
• Generous interior space accommodates large plugs and long extension cords without crowding the enclosure.

Real-world use cases

Ideal for home driveways, construction sites, campsites with RV hookups, or anywhere a dedicated 50A charging point is beneficial. The combination of a lockable door and weatherproof construction makes it a practical choice for frequent use in varied weather conditions.

Choose this box for a durable, practical charging solution that pairs a high-grade outlet with a protective enclosure and clear safety credentials. While performance depends on your setup, the design emphasizes reliable connections, straightforward wiring, and long-term usability.

What you get: NEMA 14-50 Outlet Box, plus responsive 24/7 support and a 24-month warranty, backed by Suplevel.