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  • Outdoor rated plugin box for a portable generator
  • To connect a generator to a transfer device for backup power
  • 30 amp 4-wire L14-30 style power inlet
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Product Details

The Reliance Controls 30 Amp Power Inlet Box is designed for outdoor use and can be hardwired directly to a manual transfer switch or transfer panel, eliminating the need for cords running through windows or doors. This raintight unit includes a flanged inlet plug, an inlet cover and 4 combination knockouts.
  • Connects a generator cord to a manual transfer switch or transfer panel
  • Raintight metal cover ideal for outdoor mounting
  • NEMA L14-30P rated flanged inlet plug
  • 30 Amp s, 125/250 VAC, 7,500 watts
  • Generous wiring space facilitates rough-in
  • UL listed
  • Face of the box is removable for fast installation
  • 4 combination 1/2 in. and 3/4 in. knockouts
  • Return Policy
  • California residents

Additional Resources

From the Manufacturer

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Specifications

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Questions & Answers

39Questions
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Q:Can I use aluminum wire
by|Aug 17, 2023
2 Answers
Answer This Question

A:  Hello, No aluminum wire can not be used, I am not 100% sure that most codes do not allow a mix of Aluminum Wire and Copper Wire. Our inlets to not allow aluminum wiring

by|Aug 18, 2023

    A:  No not to code

    by|Aug 18, 2023
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      Q:Do I need to buy a transfer switch for this to run the generator to the house or can I connect this directly to the breaker box for the house?
      by|Jan 24, 2023
      5 Answers
      Answer This Question

      A:  You need a transfer switch/box

      by|Apr 28, 2023

        A:  You really do need to use a transfer switch to run a generator to your home. You want to isolate the two sources of power in order not to cause problems with both on line at the same time. You should consult an electrician on the topic though, much safer and potentially less expensive in the long run!

        by|Jan 27, 2023

          A:  You must block (switch off the main breakers) before engaging the generator live line. The only way to play safe is to install a breaker lock device. Do your homework and watch some videos on youtube. This is to prevent back feed to the outside line that could injure someone.

          by|Jan 27, 2023

            A:  The National Electrical Code requires a transfer switch when you connect an alternate power source (generator) to a structure that is normally powered from a utility. This is a very important safety measure, not just for you and your home but also for the utility workers that may be working on the power lines.

            by|Jan 25, 2023

              A:  We used a disconnect box between the plug and main breaker box and it works just fine. You just have to make sure you turn the main breaker off before switching to generator power because it can back feed into the main power.

              by|May 19, 2023
                1 found this answer helpful
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                Q:Can I buy the plug cover or do I have to buy the intire box?
                by|Jan 2, 2023
                6 Answers
                Answer This Question

                A:  The whole box

                by|Jan 5, 2023

                  A:  It’s the entire box!

                  by|Jan 8, 2023

                    A:  It's a single unit. What you see is what you get.

                    by|Jan 9, 2023

                      A:  Hello Tony, The PB30 is sold as a complete product and UL has tested it as such and can not be sold separately. If only a flip cover is needed I recommend the PK30 Power Inlet.

                      by|Jan 3, 2023

                        A:  Not sure exactly what you are asking but if you are wanting just to have the male post part  then no. This is a unit that includes male receptacle as part or the metal box. 

                        by|Aug 24, 2023

                          A:  It’s the entire box.  They do not sell a plug cover.

                          by|Jan 6, 2023
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                            Q:Can I drill a hole in the top cover for my conduit connector instead of using the standard KO's?
                            by|Sep 28, 2022
                            5 Answers
                            Answer This Question

                            A:  The answer is no, the front and top are together and come off to access the box, I suggest using an LB 90 into the side of the box.

                            by|Oct 12, 2022

                              A:  You may be able to if you use a weather tight gasket fitting. It must be totally rain-tight. I would suggest that you try use the KO's in the bottom (or side if present). There may not be enough wire bending space entering the top. Look at the installation instructions. That will tell you. If you can or not. 

                              by|Oct 5, 2022

                                A:  No. The top is hinged and enables access for connections. 

                                by|Oct 4, 2022

                                  A:  No you can not drill the top. The top and front are one piece which is the only way to make your connections. 

                                  by|Sep 30, 2022

                                    A:  No, the top cover is designed to mount over the bottom base cover, if you install the conduit in the top you cannot properly install or remove the cover, also if installed outside you will need to use a sealing ring to maintain Nema 3R rating. I would install conduit along side and use an LL or LR fitting to properly route conduit into the side of the box.

                                    by|Oct 3, 2022
                                      Showing 1-4 of 39
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                                      Customer Reviews

                                      4.8 out of 5
                                      (479)
                                      • 4.8
                                        out of 479 reviews
                                      • 96% recommend this product
                                      Filter by:
                                      Showing 1-10 of 479 reviews
                                      Connect your generator to your whole house
                                      Super easy to install and allows me to connect my generator directly to my breaker panel through a transfer switch
                                      by
                                      • Verified Purchase
                                      Perfect...
                                      Perfect
                                      by
                                      • Verified Purchase
                                      1 found this review helpful
                                      Easy to Install. Better looking than other bulkier....
                                      Easy to Install. Better looking than other bulkier.
                                      by
                                      • Verified Purchase
                                      this is the perfect termination box with the connector to hook up your generator.
                                      this is the perfect termination box with the connector to hook up your generator.
                                      by
                                      • Verified Purchase
                                      • Recommended
                                      solid quality
                                      Well made and easy installation. Use 10 gauge wires foy my generator
                                      by
                                        • Recommended
                                        For the average DIY'er, additional info is needed for landing leads inside the box (i.e., Red wir...
                                        For the average DIY'er, additional info is needed for landing leads inside the box (i.e., Red wire attached to X , Black wire to Y, White wire to W, Ground wire to G or Gold screw). Offer (code approved) types of connection options from the Inlet Box to supporting electrical box.
                                        by
                                        • Verified Purchase
                                        • Recommended
                                        5 found this review helpful
                                        Used to run dire t line from my generator to panel
                                        Used to run dire t line from my generator to panel
                                        by
                                        • Verified Purchase
                                        • Recommended
                                        1 found this review helpful
                                        A good inlet for a power generator
                                        The power inlet was easy to assemble. I used # 10 wire to connect up to a double pull 30 amp breaker. It's better to use thinner wire such as #12 to make it easier to make all the connections. This box can adequately hold a connecting 30 amp 10/4 power cord in place. A better method would be to use a twist lock adapter to ensure the power cord stays well connected to inlet box.
                                        by
                                        • DIY
                                        • Verified Purchase
                                        • Recommended
                                        4 found this review helpful
                                        Great Product
                                        Bought this to complete my home generator setup. Mounted easily to outside wall to run cable to breaker panel in basement. Quality construction. A little pricey but it's hard to fine a NEMA male twist-lock plug and box for DIY'rs. Best value was Home Depot. Worth the price to do the job the right way. Purchased online from Home Depot, fast delivery. Very satisfied with product and service.
                                        by
                                        • DIY
                                        • Verified Purchase
                                        • Recommended
                                        3 found this review helpful
                                        commercial grade
                                        This inlet box is exactly what I needed for my generator. Good quality and easy t install.
                                        by
                                        • DIY
                                        • Verified Purchase
                                        • Recommended
                                        1 found this review helpful
                                        Showing 1-10 of 479 reviews

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