MULMART 50A Generator Cord & Power Inlet Box — 25ft NEMA14-50P to SS2-50R, Weather-Resistant 125/250V

This MULMART kit pairs a 25-foot, 50-amp NEMA 14-50P to SS2-50R generator cord with a weather-resistant 50A power inlet box for reliable 125/250V, up to 12,500W outdoor backup power connections.

When you need a rugged, code-ready connection between a portable generator and a building or RV inlet, this bundled solution provides the cable, the inlet, and the twist-lock security to keep power flowing during outages, camping, or outdoor events. The cord uses heavy-gauge STW construction and a finger-grip male plug for easier handling, while the inlet box is built for outdoor installation and accepts a broad range of feeder sizes.

How does this kit connect my generator to an RV or home inlet?

The included cord terminates in a NEMA 14-50P male plug to connect to many generators and a NEMA SS2-50R twist-lock female designed for inlet boxes. The twist-lock keeps the connection secure under vibration or windy conditions. The inlet box accepts the cord and routes power indoors to your transfer switch or distribution panel.

• 25-foot cable length for flexible placement of generator
• NEMA 14-50P to SS2-50R termination for common 50A systems
• Twist-lock receptacle reduces accidental disconnects
• Supports up to 12,500 watts at 125/250V

What are the electrical and build specifications I should know?

The cord is built with STW-rated cable: 6/3 conductors plus an 8/1 ground to handle 50 amps safely. The set is rated for 125/250V service and a maximum wattage of 12,500 W, making it suitable for most 50A generator loads. The inlet box accepts wire sizes from 4 AWG to 8 AWG for permanent connections.

• Cord type: STW 6/3 + 8/1 AWG heavy-gauge cable
• Plug/Receptacle: NEMA 14-50P (male) and NEMA SS2-50R (female)
• Voltage/Current: 125/250V, 50A, up to 12,500W
• Inlet supports 4–8 AWG feeder wiring for robust installation

Is this kit safe and suitable for outdoor use?

The MULMART cord and inlet box are ETL listed, indicating they meet recognized safety standards for electrical equipment. The inlet box is designed for outdoor mounting and features weather-resistant construction to handle wind and rain when installed in an open area. Proper installation to local code and use of a transfer switch or interlock is required for safe operation.

• ETL listed for verified electrical safety
• Weather-resistant inlet box for outdoor mounting
• Finger-grip plug design eases insertion and removal
• Use with appropriate transfer equipment and professional wiring

How will I install and use the inlet box with my generator?

Mount the power inlet box on a suitable exterior wall or pedestal, route your feed conductors into the enclosure, and connect them to the inlet lugs using 4–8 AWG wire. Plug the MULMART 25ft generator cord into your generator’s 50A outlet and twist-lock the other end into the inlet. Finish by engaging your transfer switch or other approved power transfer method.

• Mount box securely to an exterior surface or pedestal
• Wire inlet lugs with 4–8 AWG conductors per local code
• Use the twist-lock to secure the cord under load
• Operate with a transfer switch or interlock for safety

Who is this for: homeowners, RV owners, tailgaters, and event organizers who need a dependable 50-amp generator connection will benefit from this MULMART kit. It’s designed for anyone who wants a rugged, code-conscious way to feed 125/250V power from a portable generator into an inlet box for emergency backup, recreational use, or temporary power setups. For permanent installations, hire a licensed electrician to ensure compliance with local regulations and safe wiring practices.