Top 9 30-Amp NEMA 3R Power Inlet Box – Industrial & Scientific

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1. S7


Generator Transfer Switch,Power Inlet Box, 30 Amp Generator Inlet Box,NEMA L14-30P ,Generators Up to 7,500 Running Watts PB30 30-Amp NEMA 3R Power Inlet Box

S7 #ad - The exclusive patented design provides generous wiring Space And Facilitates Rough-In; The Face Of The Box Is Removable For Easy Placement And Wiring. The rain tight nema 3r pbn-series steel power inlet box is designed For Use With Pro/Tran Transfer Switches, Panel/Link Transfer Panels And Generator-Ready Load Centers. This rain-tight, rust-proof unit includes an NEMA L14-30P Inlet Plug, six knockout holes, And Push-In Wire Connections. Power inlet box is an outdoor/watertight Electrical Inlet For A 30 Amp L14-30 Generator Cord.
BrandS7 #ad
Manufacturerwin-win #ad

2. GeepKey


GeepKey 30 Amp Power Inlet Box, Weatherproof for Outdoor Use, 125/250 Volt, 7500 Watts Generator Transfer Switch, NEMA L14-30P PB30 Power Inlet Box, NEMA 3R Power Inlet Box, ETL Listed

GeepKey #ad - And the 1. 2-inch combination hole with 4 areas left, right, and it has a longer service life. 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, making installation more portable. This pb30 power inlet box is a good partner for the generator to accommodate the power cord. The front panel can be removed, bottom, rear can be directly connected to the switch and electrical panel from multiple directions.

Best choice for outdoor: the whole body of geepkey generator power inlet box is covered with anti-rust coating, rain and rust! In addition, with powerful features such as wind, 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!. Importantwe are committed to providing safer power transmission and make it comply with ETL standards, so we have set a more solid knockout to ensure that it is not easy to be penetrated to improve safety. It is necessary to use professional tools to penetrate such as bi-metal hole saw/knockout punch; If you encounter any problems, you can try to contact us first email or through the seller’s contact tool, please feel free to contact us! If you damage the 30 amp generator plug because you can’t get through the Knockout, we will provide you with a replacement or a full refund! .

It is designed to be installed in outdoor areas where generators are used outdoors, 7500W, 30Amp generator inlet box with NEAM L14-30 inlet generator plug, etc.100% satisfactory service: this product is an upgraded model developed by us in accordance with market needs. 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.
BrandGeepKey #ad
ManufacturerGeepKey #ad
Part NumberRML1430PB

3. Flameweld


ETL Listed, NEMA L14-30P PB30 Power Inlet Box, Flameweld 30 Amp Power Inlet Box, Weatherproof for Outdoor Use, NEMA 3R Power Inlet Box, 7500 Watts Generator Power Hookup, 125/250 Volt

Flameweld #ad - Large space inlet box: large space makes wiring convenient and good heat dissipation. The front panel is detachable for easy installation. This inlet box is ideal for installation in the open area of an outdoor generator, can be used for rv, without wires running through Windows or doors.

Can be used as a backup power source during power outage, house exterior and so on. Safely running outdoor: anti-corrosive powder-coat paint stainless steel housing with waterproof clamshell effectively increased service life. Safe to use in any environment.

3 connecting holes : the power inlet box has 3 holes left, right, bottom for easy connection to the transfer switch or panel. Etl listed generator inlet box: 30 amp generator inlet box supports nema L14-30 inlet generator plug, Allowable operating voltage range: 125/250V, 7500W. This pb30 power inlet box is suitable for use with the power cord.
BrandFlameweld #ad
ManufacturerFlameweld #ad



125/250 Volt, 7500W Generator Inlet for Outdoor Receptacle, Weatherproof, L14-30P, Generator Outlet, PB30, WELLUCK 30 Amp Generator Power Inlet Box, ETL Listed, NEMA 3R Power Inlet Box with 4 Prone

WELLUCK #ad - Power on indicationupgraded with the green light power on indication on the lid, will light on when plug in and start power connection. 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.

The best partner for generator to house power cord, 7500w generator inlet box with nEAM L14-30 inlet generator plug, 125/250V, providing and maintaining continous backup power supply from the generator outside, especially when short of power, terrible weather. Larger spacethe front panel is removable for wiring up. Weatherproof & rust resistancethe 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.

Comparing with old version, weLLUCK power inlet box is more visible and safer when working, especially at night or dark area. Etl certified30a, designed for all 30 amp nema l14-30 generator cord. No more serious curving wire. 4 ways connection1. 2" hole drilling position on 4 areas left, Right, Bottom & Back could connect to transfer switch and electric panel on multi-directions straightly. 10 awg wire supported in max.
BrandWELLUCK #ad
ManufacturerWELLUCK #ad

5. Kohree


Kohree Generator Power Inlet Box 30Amp 4 Prong NEMA 3R Generator Inlet NEMA L14-30P Weatherproof for Outdoor Generator Outlet Receptacle, 7500W, 125/250V, ETL Listed

Kohree #ad - Thus, the heat-dissipation is more faster to ensure long service life. The best partner for generator to house power cord, 7500W, providing and maintaining continous backup power supply from the generator outside, especially when insufficient power and bad weather such as tornadoes and blizzards.

The front lid can be closed securely when not in use to protect the connector from the dust and moisture. Safety certificateetl listed pb30 30amp nema 3r power inlet box 125/250v, suitable for all 30amp 4 prong nemA L14-30P generator and cord. Safe light indicatora green light power indication on the lid to give you a visibly clear indication light when power cord plug into it and the generator, added safety in night or dark areas.

3. 1" larger roommakes your installation more easier & faster, and the front of the box is removable for easy placement & wiring. 4 ways to connect4 areas left, bottom & back on the power inlet box with 1. 2" hole drilling position, Right, so it be wired to the transfer switch or panel directly. Weatherproof & rustproofkohree enclosed power intlet box is constructed of rugged steel and covered with corrosion resistant coating inside and out.
BrandKohree #ad
ManufacturerKohree #ad

6. Miady


L5-30P, Miady 30 Amp Generator Power Inlet Box, For Generators Up to 3750 Watts, ETL Listed, 125 Volt, NEMA 3R Power Inlet Box, Weatherproof

Miady #ad - Weatherproof & rust resistance: the inlet box is made of steel with durable, corrosion-resistant powder coating and has a spring-loaded inlet cover to protect against dust, moist air and water. A clear indication will be evident when working, thus providing optimal performance and increased safety.

Using 1. 2" knockouts side, bottom and back, the power inlet box is designed to connect directly to a transfer switch or panel. Best space design: has a generous wiring space for easy threading. The front of the box is removable for easy placement and wiring. L5-30 generator inlet box: etl listed, 30 amp, 125 volt, 3750 watts generator power inlet box.

Nema l5-30p plug, compatible with all 30 Amp NEMA L5-30 generator cord. What you get: heavy duty 30 amp generator power inlet box, our worry-free 18-month warranty, and friendly customer service. The best choice for generator power cord to house. Max wire gauge: 10 AWG. Power on indication: when the generator cord is plugged in and powered on, a green light on the flip-top will illuminate.
BrandMiady #ad
ManufacturerPIBL530 #ad

7. X-Haibei


LED Light 30A NEMA L14-30P, X-Haibei 30 Amp Generator Inlet Box 125/250 Volt Power Inlet Box fit Generator Cord Plug for Outdoor Receptacle

X-Haibei #ad - Various applications:rv, trailer power, camper, motorhome, any outdoor power outlet electric in 30A 125/250V. Safe and universal fit for industry standards. You can use it with confidence. Comes with a simple manual. Note: for waterproof three of the conduit punch outs were not scored, need to drill them out. Durable anti-corrosion and anti-fading waterproof construction. Adapt to all kinds of weather sun, rain, snow.
BrandX-Haibei #ad
ManufacturerX-Haibei #ad
Height6 Inches
Length3 Inches
Width4 Inches
Part NumberBT0305-Z-1430PB

8. Reliance Controls


Reliance Controls PBN30 30-Amp NEMA 3R Power Inlet Box

Reliance Controls #ad - Designed specifically for generators up to 7, 500 maximum running watts. Durable, raintight, and non-metallic power inlet box. Cabinet type: NEMA 3R. Transfer switch accessory also for use with Reliance Controls Panel/Link manual transfer panels and generator-ready load centers. Must be installed outdoors near an in-use generator.
BrandReliance Controls #ad
ManufacturerReliance Control Corporation #ad
Height4.5 Inches
Length6.5 Inches
Weight1.9 Pounds
Width7.5 Inches
Part NumberPBN30

9. briidea


Briidea NEMA 3R Generator Inlet Box, 30 Amp Power Inlet Box, 125/250 Volt, Weatherproof for Outdoor Use, Gray, ABS, 7500 Watts Generator Transfer Switch, NEMA L14-30P

briidea #ad - With a transparent waterproof flip cover, dust and other weather damages, the unique buckle and bolt design to achieve perfect seal, UV, not easy to break, and it can resist rain, providing the best protection in any bad weather!. Ul listed plug: 30a, connect max 7500w generator, 125/250v generator inlet box with UL listed NEMA L14-30 inlet generator plug, compatible with generators equipped with 30 amp outlets.

Weatherproof & durable: ip67 protection grade. Just a regular hammer drill will work, you don't have to spend more time trying to get the knockouts open, quickly drill holes of the size you want in less than 1 minute! Internal wiring is no longer a pain. The front panel of the box is detachable for easy placement and internal wiring. Max wire gauge: 10AWG. It can be wired through an outside wall directly to the transfer switch or panel, ideal for backup power during power outages, no need for cords going through windows or doors.

Larger space: compared with ordinary cabinets, we have increased the wiring space by 50%. Benefit: this great power inlet box is designed to be installed outdoors where the generator is running to avoid carbon monoxide hazard, and the best partner for generator to house power cord especially in terrible weather. Made of abs material, strong quality, rust-proof. Easy to drill: compared with the metal inlet box, no such painful process.
Brandbriidea #ad
Manufacturerbriidea #ad