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Internet # 202216493

Model # PB50

Store SKU # 1000498158

$88.07
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  • Designed for outdoor use
  • Hardwire directly to manual transfer switch or transfer panel
  • Removable face for fast installation
  • View More Details

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Product Details

About This Product

This 50 Amp power inlet box is designed for outdoor use and can be hardwired directly to a manual transfer switch or transfer panel, eliminating need for cords running through windows or doors. This raintight unit includes a CS6365 flanged inlet plug, inlet cover, four combination 1/2-and 3/4-inch knockouts, one on each side, bottom and back. The power inlet box is rated for 50A@125/250VAC. The exclusive patented design provides generous wiring space and facilitates rough-in.

Highlights

  • 50A - 125/250V - CS6375 (NEMA SS2-50) configuration
  • Pre-wired built-in grounding
  • Spring-loaded auto-closing cover - prevents bees and spiders from nesting
  • Suitable for outdoor use - NEMA 3R rated
  • 5 year warranty
  • cULus listed
  • Return Policy
  • California residents
     see Prop 65 WARNINGS

Product Information

Internet # 202216493

Model # PB50

Store SKU # 1000498158

Specifications

Dimensions

Product Depth (in.)

3.7 in

Product Width (in.)

4 in

Details

Maximum Amperage (A)

50

NEMA Configuration

NEMA 3R

Product Weight (lb.)

2.3 lb

Returnable

90-Day

Voltage (V)

125/250 V

Warranty / Certifications

Certifications and Listings

UL Listed

Manufacturer Warranty

5 years

Questions & Answers

Is this outlet commercial grade to withstand multiple days of continuous use without melting
ByFeb 20, 2026
3 Answers | 
Answer This Question

Yes. Used it for several days with no issues.

By|Feb 23, 2026

    The PB50 is rated for a load of up to 12500W, and should not have heating concerns during normal operation when properly installed by a licensed electrician.

    By|Feb 24, 2026

      Good afternoon I have run power into this outlet for about 3 of a day Have had 0 issues. It is very well constructed and the intent for this outlet for my application is to also run it for multiple days in a row, which I do believe it will handle that.. my generator is the 13000 W model and the only things that are not hooked up when I am plugged into the generator is my hvac clothes washer and dryer water. Heater and stove.

      By|Feb 20, 2026


        Will it increase the available amperage at the breaker box if I ran the 4 20 amp circuits along with the 50 amp cord? I have a Duromax XP9000IH inverter generator.
        BySep 30, 2024
        2 Answers | 
        Answer This Question

        No, the available Amperage will be tied to the generators capacity itself. The XP9000iH inverter will have a running amperage 31.66 A @ 240V.

        By|Oct 4, 2024

          Your available amperage is determined by your generator. The 50 amp cord is as it states, rated for a maximum 50 amps. More than that amount and it starts heating up and risk a fire. To determine your amperage you would divide your watts by voltage. In this case your running wattage is 7,600/120= 62.5

          By|Oct 3, 2024


            Is this a 4 prong?
            ByJul 31, 2024
            1 Answer | 
            Answer This Question

            Hello David, It is 4 wire 3 prong and a Ground connection It is a twist-lock inlet box CS6375 California Standard.

            By|Aug 12, 2024


              What inlet plug for a 16kw? I only see ones rated for 12500 kw
              ByJun 16, 2024
              1 Answer | 
              Answer This Question

              All 50 Amp inlets will be rated for 12,500 Watts because a 50 Amp receptacle is only capable of outputting 12,000 Watts at the peak. If your connecting this to a generators 50 Amp outlet, the generator will only be capable of outputting 12,000 Watts from the 50A receptacle, even if the generator is rated for a higher output.

              By|Oct 11, 2024


                Will this work with a 13,000 HXT? What heavy duty power cord do you recommend I use with it as well?
                ByMay 17, 2024
                3 Answers | 
                Answer This Question

                Yes, this box will be compatible with the XP13000HXT. The cord used to connect the 2 together will be sold here: https://www.duromaxpower.com/collections/generator-cords/products/duromax-xp5050gc-15-foot-6-gauge-50-amp-generator-power-cord.

                By|May 20, 2024

                  Yes and order the cord that goes with it from duromax as well. 

                  By|May 18, 2024

                    Yes, that will work with your generator. The cord you need, needs to be one of the ones that will handle 50 amps, the ones with the 6 GA wire. You will need to figure out how long you need it to be, but nothing over 50 feet long as that will degrade the power, but still keep the generator far enough away to keep down the carbon monoxide from getting in the house

                    By|May 20, 2024


                      Is the flip cover metal or plastic?
                      ByJan 13, 2023
                      1 Answer | 
                      Answer This Question

                      Hello Dr. Flash! The PB50 is ABS impact rated plastic

                      By|Jan 16, 2023


                        I need a adapter that goes from a L14-30p 30 amp cord to this inlet which adapter will work
                        ByMar 3, 2022
                        1 Answer | 
                        Answer This Question

                        Most importantly, this inlet can be wired as 240 volt, which your L14-30; 30amp won't support, so verify how the item receiving the power form the inlet is set up. I have this inlet, it uses the California Standard (that is what the CS stands for) and you will need a CS6365 male plug. Hubbell makes them, they are kind of expensive. I would not use and adapter, because it will be very bulky, cut the cord, and put on the right plug. The Hubbell plug ends are kind of expensive, but very high quality, commercial/industrial grade. Again, you will only be able to use this inlet with your L14-30; 30amp if it is wired for 120, you can't use it if it is wired for 250.

                        By|Dec 7, 2022

                          (1)

                          Why does the inlet only have 3 terminals instead of 4 , is it rated for 120/250 volt
                          ByNov 4, 2020
                          2 Answers | 
                          Answer This Question

                          This power inlet is rated 125/250 volts. There are four conductors, three terminals and a grounding connection on the inside radius of the inlet that probably doesn't show up well in the photos but it's there. This is the standard configuration for four conductor 50 amp locking connections.

                          By|Sep 22, 2021

                            (1)

                            The forth terminal (ground) is on the outside ring

                            By|Nov 4, 2021


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                            Customer Reviews

                            4.4 out of 5

                            • 4.4 out of 150 reviews
                            • 84% recommend this product
                            Filter by:
                            Showing 1-10 of 150 reviews
                            At the time of writing, the product manual states that this inlet box can be used with 4 gauge wi...
                            At the time of writing, the product manual states that this inlet box can be used with 4 gauge wire which is the reason I purchased it. It cannot. 3x 4AWG wires require a minimum of 1" conduit. Minimum box size for 4 gauge or larger wires is found in section 314.28 of the NEC. This box is nowhere near large enough to accept 4 gauge wire. Funny that the instructions also state to use approved wiring methods, which using this box is not. Got my money back by returning but will never get back the time I wasted installing then removing it.
                            by
                              8 found this review helpful
                              Free shipping and reasonably fast. Item received in new condition as expected. Other reviewers ex...
                              Free shipping and reasonably fast. Item received in new condition as expected. Other reviewers express frustration hocking up cables. I did not experience any problems. I used 6/3 NM-B W/G wire and 3/4 in. Liquidtight NM Straight PVC Conduit Fitting Connector.
                              by
                                • Recommended
                                1 found this review helpful
                                Well built and easy to install. Looks good on the house also.
                                Well built and easy to install. Looks good on the house also.
                                by
                                • Verified Purchase
                                • Recommended
                                2 found this review helpful
                                I ordered this inlet box to go with my Generac 50 AMP generator cable. The CS6364 female connect...
                                I ordered this inlet box to go with my Generac 50 AMP generator cable. The CS6364 female connector will not fit in this box. The rivet on the ground tab is too large and blocks the CS6364 from being inserted. I called Reliance Controls and they recommended that I grind off the rivet. Good idea but I rather it just fits. I then order the Reliance Control PBN50, the non-metallic 50 AMP inlet box. The Generac fits that box with no problems. On inspection, I noticed the PB50 uses a Marinco connector vs the PBN50 uses a Hubbell. The Hubbell connector uses 2 small rivets and the Marinco uses one large rivet. The Marinco connector also has very weak wire clamps. Two of the screws, I was unable to tighten. The Hubbell connector wire clamps was much more substantial and was tighten with a Allen head wrench. The Hubbell was much higher quality. Marinco connectors are used on other brands too including Generac. I would look for an inlet box that uses Hubbell connectors.
                                by
                                  23 found this review helpful
                                  quality built product
                                  very well built outlet, quality is good easy to install with some electrical knowledge.
                                  by
                                  • Verified Purchase
                                  • Recommended
                                  This customer chose to rate the product and not provide text.
                                  by
                                  • Verified Purchase
                                  Reliance receptacle
                                  Reliance receptacle works well with portable generator and interlock on control panel
                                  by
                                  • Verified Purchase
                                  • Recommended
                                  Does not lock cord
                                  Ok. But how do you lock the plug in place? It does not lock and cord can rotate and come out.
                                  by
                                    This customer chose to rate the product and not provide text.
                                    by
                                    • Verified Purchase
                                    This customer chose to rate the product and not provide text.
                                    by
                                    • Verified Purchase
                                    Showing 1-10 of 150 reviews