Pre-Drilling 50 Amp Generator Inlet Box RVMATE, NEMA SS2-50P Power Inlet Box, 125/250V, 6250/12500W 50a Power Inlet Box, ETL

4.7 4.7 out of 5 stars | 906 ratings

Price: 42.99

Last update: 01-31-2026


About this item

  • ????【Pre-drilling Design】: RVMATE 50 Amp generator inlet box is easy to remove and replace the wiring caps without using special tools (such as driller/knockout punch) or finding an electrician . RVMATE pre-drilling generator inlet box saves your time and money.
  • ????【ETL Certification】: 125/250V, 6250/12500W, 50A generator power inlet box is designed for the use with the transfer switches or panels and generator-ready load centers. And It also is designed be installed outdoors in an open area where the generator is being used to avoid carbon monoxide hazard. ETL/cETL certified
  • ????【Safety Light Indication】: There is a clear LED power indicator on the flip cover. Compared with the old version, the green indicator lights up when the power is successfully connected, which provides the best performance and higher security(especially working at night or in dark areas).
  • ????【Enough Space】: The internal space of our power inlet box is 50% larger than that of the ordinary power inlet box. It provides generous wiring space. And the front of the box is removable for easy placing and wiring.
  • ????【Weatherproof & Anti-rust】: The power inlet box is constructed of steel with durable, anti-corrosive powder-coat paint. And when not working, the weatherproof flip cover can be closed to prevent moisture front entering the connector inlet.
  • ????【100% Satisfactory Service】: We provide 12 months after-sales service. If you have any questions, please contact us and we will be happy to assist you. PATENTED.

Product information

Features & Specs
Wattage6250 watts
Recommended Uses For ProductCamping, Residential
Output Wattage6250 Watts
Total Power Outlets1
Frequency50 Hz
Current Rating50 Amps
Starting Wattage12500 Watts
Running Wattage6250 Watts
Measurements
Item Weight1.22 Kilograms

Warranty & Support

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Product Warranty:For warranty information about this product, pleaseclick here

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Pre-Drilling 50 Amp Generator Inlet Box RVMATE, NEMA SS2-50P Power Inlet Box, 125/250V, 6250/12500W 50a Power Inlet Box, ETL Listed, Waterproof for Outdoor Use

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Item details
Brand NameRVMATE
Model NumberB09VBD946C
ManufacturerRVMATE
Unit Count1 Count
Best Sellers Rank
  • See Top 100 in Patio, Lawn & Garden
  • Outdoor Generator Inlet Boxes
ASINB09VBD946C
Customer Reviews
4.74.7 out of 5 stars(906)

4.7 out of 5 stars
Additional details
ColorSteel
Material TypeSteel

Top reviews from the United States

  • Exactly what I needed
    I used this inlet box to wire up a CNC machine, and it’s worked out really well. The enclosure has plenty of room inside, which made routing and terminating the wires much easier than I expected. Nothing felt cramped, and the removable front panel was a big help during install.

    The build quality feels solid and confidence-inspiring, especially for something that’s going to be supplying power to equipment like a CNC. The weatherproof cover seals nicely, and the LED indicator is a simple but useful feature to quickly confirm power is present. It feels like it was designed with real-world use in mind, not just the bare minimum to pass.
    Honestly, I didn't expect much because of the price, but this actually feels super premium.
    Overall, it did exactly what I needed it to do without any fuss. If you’re setting up shop equipment or a CNC and want a clean, sturdy inlet solution, this one gets the job done.
  • Strong and reliable generator inlet box
    This inlet box feels very solid and well made. The cover seals properly, the connections are sturdy, and everything lined up perfectly during installation. It gives a lot of confidence when connecting the generator, especially for outdoor use. Overall, it does exactly what it’s supposed to and feels safe and reliable.
  • This is a good box!
    What can I say -- buying cheapo electrical fixtures is a good way to burn your house down, but this isn't some cheapo crapbox, this is actually a really nice, solid, large, ETL-listed box! Most Americans know about UL listing, but there are many other nationally recognized testing labs, and ETL is one of them. It means if you install it properly and it's not defective, it won't burn your house down. Can't say that for a lot of things that are sold online, especially when looking at things like solar disconnects, there's some real firetrap crap out there, but this is a very nice box.

    It's plenty spacious; wrangling 6ga wires in one of those little undersized boxes can be a real problem, but this one provides enough space for the wires to bend properly and not be cramped. The cutouts are very nice, they're not knockouts and they're especially not the fake knockouts some cheap stuff comes with, they're actually pre-drilled holes that will easily accept a 3/4" conduit.

    It's a good box, it's an incredible box for the price. Is it the perfect box? Of course not, I mean, ideally the inlet would be on the bottom so that the cable snugs up into a weather-protected area. And if your cable doesn't have a locking ring on it, the connection may not be as firm as you'd want, but if your cable does have that locking ring on it and threads onto the box, it's a great tight connection.
  • Great value product.
    This product makes it possible to feed a generator into your homes breaker panel in a safe way. You'll need this an a breaker interlock kit that locks the main breaker out in order to connect the generator circuit to the panel. This makes for an easy, safe, and code compliant installation for your generator for those power outages. The season is coming... be prepared. As an electrical contractor, we install these regularly. We've used lots of different brands and models and this is the go-to for our company. Built to last, high quality materials and will potentially last a lifetime. Great value.
  • works as advertised , very nice
    works great , was easy to install
  • Make sure to space the back off the wall a tad. The cover wraps around the back.
    Easy to install. Make sure to have this box offset off the wall just a tad. The plug cover wraps around the back of the box. Other than that. Great product for the price.
  • Great outside generator connection
    Worked perfect, I like the led light to show it is hot. Lots of room to use 8ga wire directly to outlet.
  • Excellent device
    This is a fantastic receptacle. It has pre drilled holes with fillers, and is easy to install. Great price, too.

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