Could a hole be drilled in the back of the box so that the wire could get directly to the box with the without exposure to the environment

It’s possible, than how are you going to mount the box. The screw holes are behind the plug to mount the box. You have knockouts on the sides, top and bottom to run your wire. You can use conduit to protect the wire from the elements and the cover closed and locks to protect your plug.

Do those have slotted knock out plugs for the 240 vac circuit and wires in to the electrical plug?

The knock-out plugs are not slotted and are barely punched into the metal. The only way to knock the plugs out is to drill the needed holes. This is a horrible plug and I would not advise buying it. There is not enough room to bend the wires behind the plug and the terminals will not fit #6 wire needed to feed 50A. I threw mine away and bought one from Home Depot, which I installed in about 15 minutes.

Is it made of steel, and if so, what gauge is it?

It is made of steel. Thought to be around 12 gauge. Need a knock out tool to knock out the knock outs.

Includes the receptacle?

Dear Customer Yes, the receptacle includes. And we upgrade the power box, there are 3 Pre-Drilled holes and “knockout” holes for 1/2”, 3/4”, and 1” conduit. You can choose the suitable hole for your need. Hope this is helpful and if you have any questions please contact us feel free.

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RVGUARD 50 Amp 125/250 Volt RV/EV Power Outlet Box, NEMA 14-50R Receptacle

Product ID: 724617336

Details

Brand
RVGUARD
Colour
50 AMP
Compatible devices
All
Material
Metal
Product dimensions
15.2L x 13W

⚡50 Amps heavy-duty power

🔒Lockable for safety & security

🌧️Weatherproof metal enclosure

Description

🔌 Lock in power, lock out worries — your ultimate outdoor energy hub!

SAFETY FIRST ALWAYS - Integrated lock and secure enclosure protect your family and gear from unauthorized access and tampering.
PLUG PLAY CONVENIENCE - Pre-mounted receptacle and pre-drilled knockout panels make installation a breeze—no electrician headaches.
POWER UP ANYWHERE ANYTIME - 50 Amp, 125/250 Volt NEMA 14-50R receptacle powers your RV, EV, or trailer with unmatched reliability.
BUILT TO BRAVE THE ELEMENTS - Heavy-duty powder-coated metal housing with rubber gasket seals out rain, dust, and storms for year-round outdoor use.
SPACIOUS DESIGN FOR BIG PLUGS - Generous internal space lets you close the lid even with bulky handles, keeping connections safe and dry.

The RVGUARD 50 Amp 125/250 Volt Power Outlet Box is an ETL-listed, weatherproof, lockable NEMA 14-50R receptacle designed for outdoor use. Its heavy-duty metal construction with powder coating and rubber gasket ensures durability and protection against harsh weather. With a spacious interior and pre-mounted receptacle, it offers easy installation and secure power access for RVs, EVs, trailers, and more.

Specifications

ASIN	B083LFF2Q1
Amperage	50 Amps
Best Sellers Rank	#166,993 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #139 in Outlet Boxes
Brand Name	RVGUARD
Color	50 AMP
Compatible Devices	All
Connector Type	Plug-In
Customer Reviews	4.5 4.5 out of 5 stars (2,109)
Included Components	1
Item Dimensions L x W	15.2L x 13W centimeters
Item Highlight	Enclosed Lockable Weatherproof Outdoor Electrical Panel, ETL Listed
Manufacturer	RVGUARD
Material Type	Metal
Model	ARGRP50
Number of Items	1
Part Number	ARGRP50
Power Plug Type	Type B - 3 pin (North American)
Specification Met	etl listed
Total Power Outlets	1
UPC	695510016681
Unit Count	1.0 Count
Voltage	250 Volts
Wattage	12500 watts

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Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

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