Model # 6340

Internet #204004118

Generac 30-Amp Raintight Resin Power Inlet Box


30-Amp Raintight Resin Power Inlet Box

  • NEMA 3R for outdoor installation
  • Easily mounts on exterior of house or building
  • Heavy duty weather resistant resin inlet box
$4899 /each
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Product Overview

The power inlet box is installed on the exterior of the house near your main electrical panel. Inside, it is hardwired to your manual transfer switch to restore power to your main electrical panel. When the power goes out, you simply connect one end of a power cord to your portable generator outlet. The other end is plugged into the power inlet box.

  • 30-Amp, NEMA L14-30
  • Raintight design even when the generator cord is connected
  • NEMA 3R enclosure is rated for indoor or outdoor installation
  • UL listed

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Name 20-Amp Raintight Resin Power Inlet Box 30-Amp Raintight Resin Power Inlet Box 20-Amp Non-Metallic Power Inlet Box 50-Amp Aluminum Power Inlet Box
Brand Generac Generac Reliance Controls Generac
Ratings (2) (11) (1) (5)
Maximum Amperage (amps) 20 30 20 50
Voltage (volts) 240 250 240 250
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Product Depth (in.)
Product Height (in.)
Product Width (in.)


Electrical Product Type
Power Inlet Box
Maximum Amperage (amps)
Product Weight (lb.)
Voltage (volts)

Warranty / Certifications

Certifications and Listings
1-UL Listed
Manufacturer Warranty
2 Year Limited

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Customer Questions & Answers

Does it accept aluminum wire to connect to the main electrical panel?

Asked by: amateurlandscaper
I already had an electrician run aluminum wire from the panel to the garage where the power inlet box will be located. Do the lugs on your product accept aluminum wire?
Answered by: amateurlandscaper
Date published: 2016-12-02
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Customer Reviews

30-Amp Raintight Resin Power Inlet Box is rated 2.9 out of 5 by 11.
Rated 5 out of 5 by from Good sturdy box with (almost) everything you need This socket contains the internal receptacle and flip lid. The only thing you need to add is 4 mounting screws and a single wire nut (and of course the 10/3 cable to take the power top your transfer switch). These items are typically available to anyone doing this type of work so I don't see that as a negative at all. Mounting and installation was easy. Since I was at the limit of my 50' length of cable I mounted the receptacle on the wall after connecting the wire inside the box - giving me more room to work on the connections without having to waste any cable. I then worked back to the transfer switch inside.
Date published: 2012-11-05
Rated 2 out of 5 by from A few mounting issues The wall side (back side) of the product has 4 standoffs where the mounting screws go through. So when mounting to something like a j-block, the box stands off from the j-block, water can get down the backside onto the cable, into the house, etc. I resolved this by cutting out the j-block to the outer dimension of the 4 stand offs so that the box would sit flush against the j-block and I can lay a bead of caulk on the top and sides of the box. This leads to the second issue. The wall side (back side) knockouts are set off to each side, past the 4 screw standoffs and past the width of the center section of a j-block. So I wound up having to drill a hole in the center of the back side of the box. Overall this was way more effort than should have been required.
Date published: 2013-05-15
Rated 1 out of 5 by from DOES NOT ACCEPT ALUMINUM WIRE It should definitely be made more clear in the product description that this plug does not accept aluminum!! I had to order it online, wait for it to be shipped, open the package, and carefully read the directions before I could get an answer. Before ordering, I posted a question about this product here on the Home Depot site, but even the manufacturer's rep couldn't give me a straight answer. After I ran my wire all the way across my basement into the garage, I prepared to install this plug and discovered that it only accepts copper wire. For a 30A 220V circuit, aluminum wire is far more common than copper. At least is it in my area, though wiring codes do vary. My local Home Depot carries much more aluminum options than copper. I finally found a solution to this problem, which is to use a disconnect box that accepts both aluminum and copper. When I went to Home Depot to buy a short piece of copper wire, the employee from the electrical department recommended aluminum and was surprised when I told him that this inlet box does not accept aluminum.
Date published: 2016-05-26
Rated 1 out of 5 by from Cover spring is cheap After installing on my garage wall, the spring that holds the water-tight cover in place broke after minimal use. Very disappointing!
Date published: 2013-11-05
Rated 5 out of 5 by from Easy to Install- Great Value Easy to install- Front cover was simple to remove, and unscrewed flip lid/inlet to find 6" pigtail for connecting. Lining up screw holes for inlet replacement was easy. Good Instructions.
Date published: 2012-07-12
Rated 3 out of 5 by from Good temporary inlet Serves it's purpose as a temporary generator connection but, if your looking for a long term solution for your generator connection this isn't it. Expect weather to be a big factor in the useful life of this device.
Date published: 2015-04-30
Rated 4 out of 5 by from Good. all weather input The design of this input allows the connection to be protected from rain while the power cable is connected. There is also a spring loaded door to protect the connections when not in use.
Date published: 2014-07-13
Rated 5 out of 5 by from Saves a LOT of trouble & Improves safety Without an inlet box like this, you wind up with extension cords either through a window or through a door. . With this box on the outside, and a transfer switch inside, I don't have to worry about having the generator close to the house, letting deadly fumes in thru a door or window with extension cords thru it. Connection is easy and the plug is on the bottom of the box which helps to keep water out. A good deal all around and I would reccomend to anyone using a portable generator
Date published: 2012-11-10
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