14-50 Cord and Inlet Box Combo

(1 customer review)



Power inlet boxes run power to critical electrical systems while avoiding harmful exhaust fumes that a generator produces. Simply mount the box on the exterior of a home/business, and run the wiring to a transfer switch/box installation. When emergency power is needed, connect a generator cord to the inlet box, and flip the switch for the transfer unit. These boxes are equipped with a 14-50 male configuration for large systems.

Featuring Duo Rain Seal technology, this system offers two layers of weather protection. The front cap seals tightly when not in use and the threaded ring on the power cord twists over the inlet to block out water from penetrating the connection.

  • Max Wattage 12500W
  • 4 Combination 1/2” & ¾” knockouts
  • Removable box face for easy installation

The 25ft. power extension cord that is included features a NEMA 14-50 connection, which is also commonly used for EV charging and some 50 amp RVs.

  • Approval: Plug, STW: UL, C-UL
  • Limited one year warranty

This product is non-refundable as it is made to order. Items requiring assembly may take up to 3-4 business days to ship. Please contact our customer service team if you have any questions.

WARNING: This product can expose you to chemicals including lead, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information, go to www.P65Warnings.ca.gov.

Additional information

Weight 23 lbs
Dimensions 18 × 16 × 6 in


Male Configuration

Female Configuration

Jacket Material





Part Number




1 review for 14-50 Cord and Inlet Box Combo

  1. HW (verified owner)

    Perfect. I am hooking up a portable generator that has a 50a RV outlet to my home (I have all the required safety interlocks, etc). Finding a male plug to mount on the outside of the house that was made for that purpose was tough! Your product fit the bill perfectly. Highly recommended.

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