The Best Outdoor Generator Inlet Boxes

Looking for the best Outdoor Generator Inlet Boxes?

Discover now our comparison of the best Outdoor Generator Inlet Boxes. It is never easy to choose from the wide range of offers. On the market, you will find an incalculable number of models, all at different prices. And as you will discover, the best Outdoor Generator Inlet Boxes are not always the ones at the highest prices! Many criteria are used, and they make the richness and relevance of this comparison.
To help you make the best choice among the hundreds of products available, we have decided to offer you a comparison of the Outdoor Generator Inlet Boxes in order to find the best quality/price ratio. In this ranking, you will find products listed according to their price, but also their characteristics and the opinions of other customers. Also discover our comparisons by categories. You won’t have to choose your products at random anymore.

No. 1

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

🚩【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). Patented product with patent number D829665
🚩【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.

SaleNo. 2

SURAIELEC 30 Amp Generator Power Inlet Box, NEMA L14-30P Generator Box for Generator Cord, 120/240V, Weatherproof Outdoor Outlet Receptacle, ETL Listed, Ready for Emergency Use

Generator Power Inlet Box: Our power inlet box is an outdoor electrical inlet for a 30 Amp L14-30 generator cord, rated for 7500W and compatible with 6-12 AWG wire. It features a 3R enclosure, making it a rainproof generator inlet box receptacle for top-notch safety and performance
Extra-Large Cover & 3R Rainproof Enclosure: With its extra-large cover and expanded internal capacity, the box keeps out dust and humidity, ensuring cleanliness and stability. Crafted from high-grade galvanized steel with a 3R rainproof enclosure, it prevents damage and rust, ensuring reliability and longevity
Unique Outlet Hole Design: Featuring a unique outlet hole design, our outdoor generator box uses specially designed cable entry holes to prevent debris from entering and nesting. This outlet hole design enhances the longevity of your equipment, providing a secure and safe environment for your generator inlet box
Easy-to-remove Knockouts: Featuring easily removable knockouts on NEMA L14-30P Power Inlet Box bottom and back,6 knockout holes that can be directly connected to switches and distribution boards from multiple directions; The front panel is detachable, making installation very convenient
Trusted Certification: ETL-certified for 30 amp generator inlet box outlet, compatible with all 30 amp NEMA L14-30 Generator cords. Designed for outdoor installation, ideal for providing backup power during outages and severe weather

No. 3

50 Amp Generator Inlet Box [Pre-Drilled] with Green Safely Light, NEMA SS 2-50P PB50 Weatherproof Inlet Box, Power Inlet Box for Emergency in Snowstorm Weather, ETL Listed

Pre-drilling Design: GeepKey generator inlet box is designed for easy removal and replacement of wiring caps, without the need for special tools like a drill or knockout punch, or the assistance of an electrician. This saves you both time and money.
ETL Certification: 125/250V, 12500W, 50Amp generator inlet box with CS6375 inlet generator plug, suitable for all 50 amp NEMA SS2-50 generator cord. This pb50 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 50 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.

SaleNo. 4

Reliance Controls PB50 50-Amp (CS6375) NEMA 3R Power Inlet Box,Gray

For indoor or outdoor use with specific transfer switches, manual transfer panels and generator-ready load centers
Outdoor, raintight NEMA 3R non-metallic power inlet box
Maximum generator running watts: 12,500
Maximum generator input: 50A@125/250VAC
Intended for use with 8 AWG 75 degrees C insulated wire

No. 5

SURAIELEC 50 Amp Generator Power Inlet Box, NEMA SS2-50P Generator Box for 3-Prong Generator Cord, 120/240V, 12000W Weatherproof Outdoor Outlet Receptacle

Generator Power Inlet Box: Our power inlet box features a NEMA SS2-50P plug, rated for 12,000W and compatible with 4-6 AWG wire. The 3R rainproof design and ETL Certified receptacle provide enhanced safety and reliable outdoor performance
Extra-Large Cover & 3R Rainproof Enclosure:Extra-large cover and expanded capacity keep out dust and humidity for stability. Made from galvanized steel with a 3R rainproof enclosure, it resists damage and rust for lasting reliability
Unique Outlet Hole Design: Unique outlet hole design with special cable entry holes prevents debris from entering This outlet hole design enhances the longevity of your equipment, providing a secure and safe environment for your generator inlet box
Easy-to-remove Knockouts: Featuring removable knockouts on the bottom, side, and back of the NEMA SS2-50P Power Inlet Box. Six knockout holes allow multi-directional connections; detachable front panel for easy installation
Trusted Certification: ETL-certified for 50 amp generator inlet box, compatible with all 50 amp NEMA SS2-50 Generator cords. Designed for outdoor installation, ideal for providing backup power during outages and severe weather

SaleNo. 6

WILAWELS 30 Amp Generator Power Inlet Box, NEMA L14-30P Inlet Box for 4-Prong Generator Cord, 125/250V 7500 W Pre-Drilled, Weatherproof Outdoor Plug Box for Christmas, Emergency, ETL Listed, H07OB06

30Amp Generator Inlet Box: The generator power inlet box features a NEMA L14-30P plug, with a rated voltage of 125/250V and a robust power output of up to 7,500 watts, ensuring a long-lasting and reliable power supply
3R Enclosure: The 30 Amp generator inlet box made of 3R galvanized steel, provides a robust enclosure that withstands wind, rain, snow, and ice. Its excellent weather resistance makes it an ideal choice for emergency power during harsh weather conditions
Safety Indicator Light: The L14-30 generator inlet box has an indicator light on the lid that turns on immediately upon power connection, providing instant visual feedback and enhancing safety by keeping you informed of the power status
ETL Certified: Specifically designed for outdoor use, the outdoor weatherproof generator power inlet box is ETL certified, ensuring the safety and reliability of the product in outdoor and harsh weather conditions, and keeping you powered safely no matter the weather
Easy Installation: The 30 Amp 4 prong generator inlet box comes with pre-drilled holes on all sides, avoiding the hassle of drilling holes yourself and the risk of damaging the box. The removable rubber plugs make wiring a breeze

SaleNo. 7

Reliance Controls Generators Up to 7,500 Running Watts PB30 30-Amp NEMA 3R Power Inlet Box, Gray

Material Type: Powder Coated Steel

No. 8

Rophor 50 Amp Generator Power Inlet Box, NEMA SS2-50P 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: 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

SaleNo. 9

Veepeak 30 Amp Generator Inlet Box with Pre-Drilled Knockouts & NEMA L5-30P 3-Prong Twist Locking Generator Plug, Outdoor Weatherproof Heavy Duty Power Box, 125 Volts, ETL Listed

Pre-drilled Design: the generator inlet box comes with four pre-cutted knockouts on multiple sides for direct connection to multi-directional transfer switches and electrical panels. No more frustrating drilling needed, and no more bent wires.
ETL Listed Power Inlet Box: NEMA L5-30P flanged inlet generator plug, rated at 30 Amp, 125 Volt AC, 3750 Watts, max wiring gauge: 10 AWG, dimensions: 4.2” x 3” x 6.1”. ETL Listed (conforms to UL & CSA standard).
Heavy Duty & Weatherproof: The inlet box is constructed of steel with rugged, antirust coating which can effectively resist rain, UV and other elements. It also features a flip cap with waterproof foam to prevent moisture or dust from entering the inlet when not in use.
Easy to install: Generous wiring space and removable front face allow for easy wiring and neat installation, plus better heat dissipation and longer lifespan.
Peace of Mind: it comes with a green led indicator light on the flip cover for working status, heave-duty & watertight construction for added safety, plus Veepeak’s one-year hassle-free replacement warranty.

No. 10

Blulu Pre-Drilled 50 Amp Generator Inlet Box, NEMA SS2-50P 3-Prong Locking Generator Plug, 125/250V, 12500W, Outdoor Weatherproof Power Inlet Box with Pre-drilled Holes, Ready for Emergency Use

Generator Power Inlet Box: Outdoor power inlet for 50 Amp SS2-50 generator cords, 125/250V, 12500W. Supports 4-8AWG wire. Ideal for backup power during outages, it installs outdoors where your generator runs, ensuring safety and convenience
Pre-drilling Design: The upgraded 50Amp SS2-50P generator inlet box features 3 pre-drilled holes and cord can be plugged in from either side and there's ample space for heavy-duty cables. Generous space design ensures tidier wiring, improved heat dissipation, and extended durability
Expanded Internal Space: The internal space of our power inlet box is larger than that of the ordinary power inlet box. With its thickened cover, our generator inlet box accommodates various cables, including heavy-duty RV cords. Ample space for easy wiring; Thickened cover ensures durability and reliable power supply
Weatherproof & Durable: Made from galvanized steel, the rainproof casing shields protects the temporary power outlet from rain, UV, and environmental damage. Powder-coated finish resists corrosion and ensures reliable performance in all weather conditions, keeping your generator inlet box rust-free
Enhanced Safety: Located outside, the 50 amp 3-Prong SS2-50 generator plug keeps carbon fumes away from your home. Hardwired to your transfer switch for home generator, it eliminates the need for cords through doors or windows. ETL certified for safety

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Last update on 2025-06-06 / Affiliate links / Images from Amazon Product Advertising API

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