Muelnmey 30A NEMA TT-30P Power Inlet Box 125V IP66 Weatherproof, ETL‑Listed Dustproof Enclosure

The Muelnmey 30Amp NEMA TT-30P power inlet box provides a weatherproof, ETL-listed outdoor inlet for 125V/30A connections such as RVs, generators, EV charging adapters, and welding equipment.

This compact inlet replaces or adds a protected outdoor power access point, using a durable PP/PVC enclosure and an IP66 rating to keep dust and water out of the socket. Built to accept standard TT-30P plugs, it supports 30A and up to 3600W with a grounded 2-pole/3-wire design. The unit is ETL listed for safety compliance and intended for permanent mounting on homes, garages, RV bays, or equipment boxes.

How does this inlet box protect outdoor electrical connections?

The Muelnmey inlet uses a sealed lid and corrosion-resistant plastic housing to block moisture, dust, and debris while the internal wiring remains isolated from the elements. The IP66 rating confirms strong resistance to heavy sprays and ingress, and the plastic construction avoids rust typical of metal boxes.

• IP66-rated enclosure blocks dust and high-pressure water jets
• New PP and PVC materials resist corrosion and UV exposure
• Sealed lid with gasket prevents moisture entry when closed
• ETL listing verifies third-party electrical safety testing

Which devices and cords are compatible with this NEMA TT-30P inlet?

This inlet accepts the NEMA TT-30P plug used widely on RV shore power cords and many generator cords, and it works with 30A-rated welding leads and certain EV adapters that match the TT-30P form factor. It is suitable when you need a dedicated 30A/125V feed for portable equipment or vehicle hookups.

• Compatible with TT-30P RV shore power cords
• Works with 30A generator outputs and welding machines
• Supports 125V, 30A, up to 3600W continuous load
• Grounded 2-pole/3-wire configuration for safe connections

What are the key electrical and installation specifications?

The inlet is rated for 30 amps at 125 volts and supports up to 3600 watts with a grounded connection. It is supplied in an enclosure sized for wall or surface mounting and intended to replace existing outdoor sockets or add a new inlet where a protected connection is needed.

• Electrical rating: 30A, 125V, 3600W, 2-pole/3-wire grounded
• ETL-listed for compliance with safety standards
• Durable PP/PVC housing for lightweight, rustproof protection
• Designed for surface mounting on walls, RV bays, or panels

How does this inlet box compare with metal boxes or uncovered outlets?

Compared with metal enclosures, the Muelnmey unit resists corrosion and is lighter to handle during installation. Versus an uncovered outlet, it delivers significantly better protection against weather and dust, reducing the chance of short circuits or connector damage from exposure.

• Plastic housing eliminates rust and reduces corrosion maintenance
• Sealed design extends connector life versus open outlets
• ETL listing offers added assurance that design and materials meet standards
• Cost-effective replacement for older or damaged outdoor sockets

Who is this for: Homeowners, RV owners, small-fleet operators, contractors, and anyone who needs a reliable, weatherproof 30A inlet outdoors. If you install generators, run welding equipment outdoors, outfit an RV or adapt an EV charging setup that accepts a TT-30P plug, this inlet provides a safe, durable connection point with certified electrical ratings and protective construction.