Top 10 Best Generator Inlet Boxes Of 2022

There is a large market for generator inlet boxes, and there are a lot of similar products available. It can be difficult to decide which one to purchase because there are so many options to consider. However, our team has compiled a list of 10 popular and top rated best generator inlet boxes that you can consider if you want to buy one. We believe these items will save you time and money.

Our Top Picks At A Glance

If you don’t have enough time, check out this shortlist of the best generator inlet boxes and choose the one you like the most.

10 Best Generator Inlet Boxes People Love In 2022: In Depth Features

SaleBestseller No. 2
WELLUCK 50 Amp Generator Power Inlet Box, NEMA 3R Power Inlet Box, PB50, SS2-50P, CS6375 Generator Plug for Outdoor Receptacle, Generator Outlet, Weatherproof, ETL Listed, 125/250 Volt, 12500W
  • 【ETL CERTIFIED】50A, 125/250V, 12500W GENERATOR INLET BOX with CS6375 inlet generator plug, designed for all 50 amp NEMA SS2-50 generator cord. 4-8 AWG Wire Supported in Max. The Best Partner for generator to house power cord, providing and maintaining continous backup power supply from the generator outside, especially when short of power, terrible weather...
  • 【POWER ON INDICATION】Upgraded with the Green Light Power on Indication on the lid, will light on when plug in and start power connection. Comparing with old version, WELLUCK power inlet box is more visible and safer when working, especially at night or dark area.
  • 【LARGER SPACE】The front panel is removable for wiring up. Comparing with old version, larger space makes the whole installation easier and faster, what's more, the heat-dissipation will be better and guarrantee long lifetime.
  • 【4 WAYS CONNECTION】1.2" hole drilling position on 4 areas (Left, Right, Bottom & Back) could connect to transfer switch and electric panel on multi-directions straightly. No more serious curving wire.
  • 【WEATHERPROOF & RUST RESISTANCE】The whole metal body is covered by anti-rust powder coating and the fliping cap could be shut down when it is not working in order to prevent dust, humid air and water.
SaleBestseller No. 3
Rundik 50 Amp Generator Power Inlet Box, ETL Listed NEMA SS2-50P Power Inlet Box for 3 Prong Generator Cord, 125/250 Volt, 12500 Watts Generator Transfer Switch Weatherproof, Outdoor Use
  • 【Generator Power Inlet Box】Power inlet box is an outdoor/watertight electrical inlet for a 50 Amp SS2-50 generator cord. 125/250V, 12500W. It is designed to be installed outdoors in an open area where the generator is being used and perfect for backup power during a power outage.
  • 【Safety Assurance & ETL Certificate】It is designed to be located outdoors where the generator is running to prevent dangerous carbon monoxide fumes from the generator from entering your house. This inlet box is then safely hardwired through an outside wall directly to the transfer switch or panel, eliminating the need for cords running through windows or doors. Our generator power inlet box passed the certifications of ETL.
  • 【Best Space Design & Easy to Install】Compared with ordinary boxes, we have increased the wiring space by 50%. There are generous wiring space and facilitates through-in. The front of the box is removable for easy placement and wiring.
  • 【Weatherproof & Anty-rust】The front entry inlet has a weatherproof spring cover which closes when not in use to protect the inlet from the elements. The surface of the power inlet box with anti-corrosive powder-coat paint which can resist weather damage like rain, UV, will not rust.
  • 【Green Light Indication】New upgraded version provide a Green Power Indicator. There will be on a green light on the flip lid when plugging into the generator cord and powering on the generator. It gives a visibly clear indication when it is working and inlet is ready to use, which provides optimum performance and added safety.
Bestseller No. 4
Rophor 30 Amp Generator Power Inlet Box, NEMA L14-30P Power Inlet Box for 4 Prong Generator Cord, 125/250 Volt, 7500 Watts, Weatherproof, Outdoor Use, ETL Listed
  • Generator Power Inlet Box: Power inlet box is an outdoor/watertight electrical inlet for a 30 Amp L14-30 generator cord. 125/250V, 7500W. Max wire Gauge:10AWG. It is designed to be installed outdoors in an open area where the generator is being used and perfect for backup power during a power outage.
  • Safety Assurance: It is designed to be located outdoors where the generator is running to prevent dangerous carbon monoxide fumes from the generator from entering your house. This inlet box is then safely hardwired through an outside wall directly to the transfer switch or panel, eliminating the need for cords running through windows or doors. Our generator power inlet box passed the certifications of ETL.
  • Best Space Design & Easy to Install: Compared with ordinary boxes, we have increased the wiring space by 50%. There are generous wiring space and facilitates through-in. The front of the box is removable for easy placement and wiring.
  • Weatherproof & Anty-rust: The front entry inlet has a weatherproof spring cover which closes when not in use to protect the inlet from the elements. The surface of the power inlet box with anti-corrosive powder-coat paint which can resist weather damage like rain, UV, will not rust.
  • Green Light Indication: New upgraded version provide a Green Power Indicator. There will be on a green light on the flip lid when plugging into the generator cord and powering on the generator. It gives a visibly clear indication when it is working and inlet is ready to use, which provides optimum performance and added safety.
SaleBestseller No. 5
30 Amp Generator Inlet Box Power Box NEMA 3R L14-30P Generator Plug 30 Amp 4 Prong Outdoor Generator Transfer Switch,UL Approved
  • 【Generator Inlet Box 30 Amp 4 Prong】: Power inlet box is an outdoor/watertight electrical inlet for a 30 Amp L14-30 generator cord. 125/250V, 7500W. Max wire Gauge:10AWG. It is designed to be installed outdoors in an open area where the generator is being used and perfect for backup power during a power outage.
  • 【Safety AssuraUL LISTED PLUG: It was designed for outdoor using with UL Listed plug and front of the power inlet box is removable for easy placement and wiring, Connects a generator cord to a manual transfer switch or transfer panel which eliminating the need for cords running through windows or doors,to prevent dangerous carbon monoxide fumes from the generator from entering your house.
  • 【Weatherproof & Rust Resistance】: The front entry inlet has a weatherproof spring cover which closes when it is not working in order to prevent dust, humid air and water. It can provide the best protection in any bad weather!
  • 【Unique Appearance Design & ABS Plastic Material】,Not Leakage: Semi-transparent flip cover design, you can see the socket situation more clearly. There are two screws on the flip cover, which can be tightened when not in use. ABS Plastic Material,No leakage, more safe.
  • 【Easy to Wire with Enough Space】: Compared with ordinary boxes, we have increased the wiring space by 50%. There are generous wiring space and facilitates through-in. The front of the box is removable for easy placement and wiring.
Bestseller No. 6
AMCULL 30 Amp Generator Power Inlet Box, NEMA L14-30P, 120/250 Volt, 7500 Watts Generator Inlet for Outdoor Receptacle, Weatherproof
  • Configuration: use for a 30 Amp L14-30 generator cord, 125/250V, 7500W. Max wire Gauge:10AWG. It is designed to be installed outdoors in an open area where the generator is being used and perfect for backup power during a power outage.
  • This power inlet box is an outdoor/watertight electrical inlet. To prevent dangerous carbon monoxide fumes from the generator from entering your house. Then it will be safely hardwired through an outside wall directly to the transfer switch or panel, eliminating the need for cords running through windows or doors.
  • Power on indication: Upgraded with the Green Light Power on Indication on the lid, will light on when plug in and start power connection. Comparing with old version, this power inlet box is more visible and safer when working, especially at night or dark area. Our generator power inlet box passed the certifications of ETL.
  • 1.2" knockouts on 4 areas (Left, Right, Bottom & Back) could connect to transfer switch and electric panel on multi-directions straightly. No more serious curving wire.
  • The whole metal body is covered by anti-rust powder coating and the fliping cap could be shut down when it is not working in order to prevent dust, humid air and water.
SaleBestseller No. 7
WELLUCK 30 Amp Generator Power Inlet Box, NEMA 3R Power Inlet Box with 4 Prone, PB30, L14-30P, 125/250 Volt, 7500W Generator Inlet for Outdoor Receptacle, Generator Outlet, Weatherproof, ETL Listed
  • 【ETL CERTIFIED】30A, 125/250V, 7500W GENERATOR INLET BOX with NEAM L14-30 inlet generator plug, designed for all 30 amp NEMA L14-30 generator cord. 10 AWG Wire Supported in Max. The Best Partner for generator to house power cord, providing and maintaining continous backup power supply from the generator outside, especially when short of power, terrible weather...
  • 【POWER ON INDICATION】Upgraded with the Green Light Power on Indication on the lid, will light on when plug in and start power connection. Comparing with old version, WELLUCK power inlet box is more visible and safer when working, especially at night or dark area.
  • 【LARGER SPACE】The front panel is removable for wiring up. Comparing with old version, larger space makes the whole installation easier and faster, what's more, the heat-dissipation will be better and guarrantee long lifetime.
  • 【4 WAYS CONNECTION】1.2" hole drilling position on 4 areas (Left, Right, Bottom & Back) could connect to transfer switch and electric panel on multi-directions straightly. No more serious curving wire.
  • 【WEATHERPROOF & RUST RESISTANCE】The whole metal body is covered by anti-rust powder coating and the fliping cap could be shut down when it is not working in order to prevent dust, humid air and water.
SaleBestseller No. 8
GeepKey 30 Amp Power Inlet Box, NEMA 3R Power Inlet Box, NEMA L14-30P PB30 Power Inlet Box, 125/250 Volt, 7500 Watts Generator Transfer Switch, Weatherproof for Outdoor Use, ETL Listed
  • ETL Certification: 125/250V, 7500W, 30Amp generator inlet box with NEAM L14-30 inlet generator plug, suitable for all 30 amp NEMA L14-30 generator cord. This pb30 power inlet box is a good partner for the generator to accommodate the power cord. It is designed to be installed in outdoor areas where generators are used outdoors, and also be ideal for backup power during power outages/bad weather, etc.
  • Best Choice for Outdoor: the whole body of GeepKey generator power inlet box is covered with anti-rust coating, with powerful features such as wind, rain and rust! In addition, it adopts a flip design (with weatherproofing foam inside), which is dedicated to preventing dust and humid air; it can provide the best protection in any bad weather!
  • Green Safety Light: There is a clear green warning light on the flip cover, which will be lit when the power connection is successful; Comparing with the old version, this generator inlet 30 amp plug can see a clearly visible green light indicator when working (especially in Night and dark areas), thus providing the best performance and higher security
  • Large Space with 4 Way Connection: The large space of 6.1*4.1*3.1 inches allows you to wire more neatly; the heat dissipation effect is better, and it has a longer service life. The front panel can be removed, making installation more portable. And the 1.2-inch combination hole with 4 areas (left, right, bottom, rear) can be directly connected to the switch and electrical panel from multiple directions
  • 100% satisfactory service: This product is an upgraded model developed by us in accordance with market needs. Its performance, material, life, safety and other aspects are optimized、upgrade by our professional engineers, and we provide customers with 18 Month’s high-quality after-sales service; if you have any questions, please feel free to contact us
Bestseller No. 9
Rophor 50 Amp Generator Power Inlet Box, NEMA SS2-50P Power Inlet Box for 3 Prong Generator Cord, 125/250 Volt, 12500 Watts, Weatherproof, Outdoor Use, ETL Listed
  • Generator Power Inlet Box: Power inlet box is an outdoor/watertight electrical inlet for a 50 Amp SS2-50 generator cord. 125/250V, 12500W. It is designed to be installed outdoors in an open area where the generator is being used and perfect for backup power during a power outage.
  • Safety Assurance: It is designed to be located outdoors where the generator is running to prevent dangerous carbon monoxide fumes from the generator from entering your house. This inlet box is then safely hardwired through an outside wall directly to the transfer switch or panel, eliminating the need for cords running through windows or doors. Our generator power inlet box passed the certifications of ETL.
  • Best Space Design & Easy to Install: Compared with ordinary boxes, we have increased the wiring space by 50%. There are generous wiring space and facilitates through-in. The front of the box is removable for easy placement and wiring.
  • Weatherproof & Anty-rust: The front entry inlet has a weatherproof spring cover which closes when not in use to protect the inlet from the elements. The surface of the power inlet box with anti-corrosive powder-coat paint which can resist weather damage like rain, UV, will not rust.
  • Green Light Indication: New upgraded version provide a Green Power Indicator. There will be on a green light on the flip lid when plugging into the generator cord and powering on the generator. It gives a visibly clear indication when it is working and inlet is ready to use, which provides optimum performance and added safety.
Bestseller No. 10
30 Amp Generator Power Inlet Box, NEMA L14-30P 125/250 Volt Power Inlet Box with Hole Cutter for 4 Prone Generator Cord, Up to 7500 Watts, Waterproof, Outdoor Use, ETL Listed
  • Generator Power Inlet Box: Cuiporell outdoor waterproof power inlet box is used for 30 Amp L14-30P generator power cord. The specifications are 125/250 volts and the maximum power is 7,500 watts. It is designed for outdoor installation and has excellent protection capabilities. The first choice after a power outage
  • Waterproof & Durable: The high-quality steel is used as the material to ensure the rigidity and durability of the power junction box. Excellent waterproof coating and anti-corrosion coating ensure that it can work normally in rainy and snowy days all year round. When not in use, the lid can be closed to keep the interior dry
  • Big Space: Compared with ordinary power inlet box, the internal space of Cuiporell power inlet box is 50% larger. It provides generous wiring space and facilitates rough-in. Four knockouts located on the inlet in following- left, right, bottom, & back. You can use the free hole cutter to drill where you want. The power inlet box comes with a hole cutter. You can use it to drill where you want
  • Green Light Indication: There is a green indicator on the flip cover. When the power inlet box is connected to the generator and is working, the green indicator will light up, indicating that it is working. This makes it safer to work, especially at night
  • Safety Assurance: The Cuiporell power inlet box is specially designed for outdoor use, and its purpose is to avoid the harm caused by carbon monoxide smoke when the generator is working. Excellent protection performance and hard material, as well as ETL safety certification. Bring security to your life

Criteria You Should Consider Before Purchasing The Best Generator Inlet Boxes

Before choosing a generator inlet boxes, you should take the following considerations into account.

When it comes to choosing the right product for you, there are a few things to think about. The first is what you need the product for. You might need a car that can go fast, or you might need a product that will help you get through the day. If you need a product that can do both, itï’s best to choose something with multiple uses.

The second thing to consider is what type of product you want. Do you want a product thatï’s easy to use, or do you want something thatï’s more complex? Do you want something small or something large? These are all important considerations when it comes to finding the right product for your needs.

The third thing to consider is what type of price range are you willing to pay for the product. Are you willing to spend a little bit more than others, or are you willing to spend more than necessary? This is another important consideration when it comes to finding the right product for your needs.

When youï’re looking at products, itï’s important to compare and contrast them. This will help you make a decision that is best for you. You donï’t have to choose one product over another ï’ you can comparison shop and find the best product for your needs.

Final Thoughts

We chose generator inlet boxes based on these factors. Is that where our method ends? No way. The most crucial thing you should know about us is that we constantly update our website to ensure that you have access to up-to-date and relevant information. We have a last layer of filtration because reader pleasure is paramount to us. And you, the reader, are part of that group. Please let us know if any of the generator inlet boxes included here is incorrect, irrelevant, or just outdated. Your suggestions are always welcome, and we’ll do our best to correct our list as soon as possible.

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