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Helunsi 2 Pieces Waterproof IP68 External Junction Box, 2 Way Outdoor Junction Box, Underground Plug Line Coaxial Cable Connector Wire Range 5 to 15mm Electrical Power Cord Weatherproof Boxes - Black

  • Based on 751 reviews
Condition: New
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Availability: In Stock.
Fulfilled by Amazon

Arrives Thursday, Apr 17
Order within 4 hours and 41 minutes
Available payment plans shown during checkout

Color: Black-2pcs


Features

  • IP68 Waterproof >>> The Helunsi outdoor junction box is of IP68 high-level waterproof class, weatherproof, moisture-proof, dust-proof and anti-UV, making it safe to use in the sun, wet environment, rainy or snowy days, provides total protection for your junction cables.
  • High-Quality Materials >>> 2 way junction box has good waterproof performance, with high quality plastic PC housing and waterproof silicone seal, which will not crack or fade in harsh environment, corrosion and high temperature resistant, durable for years use.
  • Specification >>> Pack of 2. Internal dimensions: L 2.83 x W 1.89 x H 1.26inch. External dimensions: L 5.31 x W 2.72 x H 1.38inch. One input and one output, conduit cable gland is equipped with 3 sets of silicone seals of different thicknesses, applicable cable size range: imperial units 3/16" to 11/32", 11/32" to 15/32", 15/32" to 19/32" (Metric units 5-9mm/9-12mm/12-15mm). Comes with 3 screw terminal connector and mounting kit. Maximum voltage: AC 450V. Maximum current: 24A.
  • Easy to Install >>> It can be installed under the ground or on the wall, horizontally or vertically as indoor or outdoor junction box, tightening the exterior screws with a screwdriver for a complete seal. Design for detachable box and cover, the waterproof silicone layer is precise and tight, by rotating and tightening the cable gland nut at both ends can lock and seal the cable.
  • Wide Usage >>> Our Helunsi junction box can protect the connections of outdoor electrical appliances and wiring, which is suitable for external lighting facilities requiring waterproof or weatherproof protection, street lights, irrigation machine, solar equipment, outdoor LED display, garden lights, outdoor flood lights, landscape lights, underground electrical and more.

Material: Plastic


Brand: Helunsi


Color: Black-2pcs


Style: waterproof ip68 external junction box


Finish Type: PC housing


Package Dimensions ‏ : ‎ 5.55 x 3.62 x 3.19 inches; 10.58 ounces


Item model number ‏ : ‎ outdoor junction box


Date First Available ‏ : ‎ June 20, 2019


Manufacturer ‏ : ‎ Helunsi


Country of Origin ‏ : ‎ China


Best Sellers Rank: #51,824 in Tools & Home Improvement (See Top 100 in Tools & Home Improvement) #89 in Electrical Boxes


#89 in Electrical Boxes:


Customer Reviews: 4.4 4.4 out of 5 stars 751 ratings


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Thursday, Apr 17

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews


  • Pool light splice
Color: Black-1pcs
Used this to replace my pool light without pulling a new cable so it will be submerged forever. I soldered the connections and then filled the box with a pourable silicone. Normally you have to pull the old cable (mine is 100ft) out but after 20 years it is almost impossible to break it loose and pull the new one through. The best price I found was $250 for the labor. Way easier and cheaper to use this j-box but if it fails it'll ruin a $500 light. Works great so far but just installed April 2024. I'll update this if there is any problem. ... show more
Reviewed in the United States on April 15, 2024 by Average Bear

  • Perfect for splicing low-voltage wires outside
Color: Black-1pcs
I needed to cut and re-route speaker wire to a deck, there was almost no slack in the wire. This box allowed me to do a perfect in-line splice and box seems very well constructed and should protect well against the elements.
Reviewed in the United States on July 11, 2024 by AJ84

  • Great Product with Cheap Screws
Color: Black-2pcs
I needed a waterproof junction box to use in conjunction with a sprinkler control line repair. The junction box was perfect for my needs. I was impressed with the seals and overall quality of the junction box until I came to screwing the lid on the box. The manufacturer included the cheapest screws I've ever seen. One of the screws lacked slots in the head and was useless! My recommendation to the manufacturer is to get rid of the cheap screwdriver included and spend the money on higher-quality screws. ... show more
Reviewed in the United States on August 18, 2023 by Michael G Jordan

  • Excellent product
Color: Black-2pcs
Had to repair Internet line to house, was cut during digging session. Worked great and is very well made.
Reviewed in the United States on May 8, 2024 by S. B. Droz

  • Buried this in the yard with a DC to DC buck converter for my Wyze camera
Color: Black-1pcs
I have a Wyze V3 camera on my back fence and needed to power it from a source more than 50 feet away. Used a 12 v power plug in a 110 V outlet and ran outdoor lighting wire to this box next to the fence. Put a 12 v DC to 5VDC converter in the box, buried it in the yard next to the fence. Ran a flat a 6 foot USB cable out of it to the camera on the fence. The box is not visible and is safely buried away from people and dogs. I live in Phoenix Arizona and the heat gets to 114 and occasionally it rains enough to flood the yard. The DC to DC converter has not over heated (probably because it's buried more than a foot in the ground) and the box has not leaked to let in any water. Recommend this box for keeping power supplies dry in outdoor environments. ... show more
Reviewed in the United States on September 21, 2022 by Rasputin

  • So easy to use
Color: Black-1pcs
This little box is great and much easier to use than I expected. I initially didn't plan on using the included terminal but once I saw how clean it kept all of my wiring it was a done deal. The waterproof rings were a little tough to change out but knowing they are supposed to keep the inside of the box dry made it worth the effort. ... show more
Reviewed in the United States on June 19, 2024 by SteveO157

  • Appears well made.
Color: Black-1pcs
Went together well and it appears to be well made. I have little expectation that plastic is very durable, but we shall see.
Reviewed in the United States on November 14, 2024 by Steve J.

  • Too small
Color: Black-1pcs
I couldn't find the sizes in the product description so I went by customer feedback. When I received the unit, it was way to small. I took measurements. Then I realized you can barely read the dimensions on the top in the picture. The outside dimensions are 5 1/4 " length X 2 3/4 " width. The length is measuring form the end of the cable screw to the other cable screw. The box itself outside dimensions are 3 " x 2 3/4 ". The inside dimensions (useful space) are 1 3/4 " x 2 5/8 ". I need interior space of 4.5 x 3.5. The unit itself looks okay - I returned it - but I didn't test for waterproof. The enclosed screw drive is standard, whereas the screws are phillips head. The screw take some effort to get in straight. The screw heads are not high quality and started deforming the first time I installed them. If these are going to be installed and forgotten, the screws are sufficient. If you are going to repeatedly open / close, you will need to get new screws. ... show more
Reviewed in the United States on November 7, 2020 by DrB DIY

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