You may also like
Carlon Gray PVC Rigid Non-Metallic Flexible Conduit Elbows for Exposed and Direct Burial Applications, 100 Pack
Model: CRL-UAFAX
Carlon Gray PVC Rigid Non-Metallic Flexible Conduit Elbows for Exposed and Direct Burial ApplicationsProfessional-grade conduit fittings for versatile electrical installationsCarlon Gray PVC Rigid...
Carlon
$164.29
Carlon NEMA 6P Non-Metallic Direct Burial Junction Box
Professional Underground Electrical Connection Solution
The Carlon NEMA 6P Non-Metallic Direct Burial Junction Box delivers exceptional corrosion resistance and durability for underground electrical installations. This gray square junction box provides reliable protection for electrical connections in demanding buried applications, featuring molded non-metallic construction that withstands harsh environmental conditions.
Professional Features & Benefits
- NEMA 6P Rating: Provides superior protection against water ingress and environmental hazards for reliable underground performance.
- Direct Burial Design: Engineered specifically for underground installation with corrosion-resistant properties that ensure long-term reliability.
- Non-Metallic Construction: Eliminates corrosion concerns while providing excellent physical properties and durability in buried applications.
- Gray Square Configuration: Professional appearance with practical square shape for efficient wire management and installation.
- UL Listed Design: First non-metallic junction box UL Listed with NEMA 6P rating per Section 314 exception, ensuring code compliance.
- Zero Knockout Design: Clean construction allows for custom entry points based on specific installation requirements.
Technical Specifications
- Application: Carlon junction box offers all the corrosion resistance and physical properties needed for direct b
- Brand Label: Carlon
- Department: Electrical
- Effective Date: 20080116
- Number Of Knockouts: 0
- Product Color: Gray
- Product Shape: Square
- Product Type: Rigid Non-Metallic Conduit Junction Boxes
- Special Functions: The first non-metallic junction box UL Listed with a NEMA 6P rating per Section 314, exception of t
Professional Applications
- Underground Electrical Distribution Systems
- Direct Burial Wiring Installations
- Landscape Lighting Systems
- Outdoor Power Distribution
- Commercial Underground Utilities
- Residential Buried Cable Connections
- Municipal Infrastructure Projects
Why Choose Carlon Quality?
Carlon delivers proven reliability with UL Listed construction and NEMA 6P environmental protection. The non-metallic design ensures lasting performance in underground applications, providing professional-grade durability and code compliance for critical electrical connections.
Manufacturer Resources
Product Specs
- Minimum Purchase:
- 40 units
- Brand Label:
- Carlon
- Department:
- Electrical
- Effective Date:
- 20080116
- Number Of Knockouts:
- 0
- Product Color:
- Grey
- Product Shape:
- Square
- Product Type:
- Non-Metallic Junction Boxes
- Product Group:
- PVC Junction Boxes
- Product Subgroup:
- Electrical
Carlon E989SX – Frequently Asked Questions
1) Can this Carlon junction box be buried directly in the ground?
Yes, direct burial is what the E989 box is built for. It carries a NEMA 6P rating, which covers prolonged submersion, and it is UL Listed with that rating per the Section 314 exception. The non-metallic body will not rust or corrode the way a steel box does when it sits in wet soil, so it does not need the coating or sacrificial protection a metallic box would.
2) Does the Carlon E989 junction box have knockouts, or do I have to drill my own conduit entries?
There are zero knockouts. The box ships as a sealed shell and you make your own entries wherever the run comes in, which is the point on a buried box: every hole you did not cut is a hole that cannot leak. Plan on hole-sawing for the conduit or cable size you are landing and sealing each penetration, because an unsealed entry defeats the NEMA 6P rating no matter how good the box is.
3) What does a NEMA 6P rating actually mean for an underground box, and is it enough for a box sitting in a wet trench?
NEMA 6P is the submersion rating: protection against water entering during prolonged submersion at a limited depth, not just splash or rain. That is the reason this box works in a trench that fills with water or in a landscape bed under irrigation, where a 3R box would fail. Carlon states it as the first non-metallic junction box UL Listed with a NEMA 6P rating per the Section 314 exception, so the listing is tied to that rating rather than to a general enclosure listing.
4) Should I use a non-metallic direct burial box or a cast metal box for underground splices?
Underground, the deciding factor is usually soil chemistry rather than strength. A molded non-metallic box like the Carlon E989 has nothing in it to corrode, so wet or chemically aggressive soil does not eat the enclosure or the threads over time. Cast metal boxes are the other route, and they take threaded hubs directly, but they need corrosion protection and bonding once buried. The tradeoff with the non-metallic box is that you cut and seal your own entries, since it comes with no knockouts.
5) Which Carlon direct burial box should I use for a landscape lighting splice?
For a low-voltage landscape lighting splice, the shallow sizes carry it: the 4x4x2 (E989NNJ) or 5x5x2 (E989PPJ) give enough room for a few splices without digging a deep pocket. Move up to the 6x6x6 (E989RRR) or an 8x8x6 (E989SX) when you are gathering several branch runs into one point or working with larger conductors that need bending room. All of them share the same NEMA 6P submersion rating, so size is about wire fill and access, not about how wet the location is.
6) What is the part number for the 12x12x6 Carlon direct burial junction box?
Carlon builds two 12x12 boxes and they differ only in depth: the 12x12x6 is E989R and the 12x12x4 is E989UUN. Both are the same gray square molded non-metallic body with the NEMA 6P rating. If you are pulling several large conduits into a single pull point, the 6 inch depth gives the extra bending room; the 4 inch keeps the excavation shallower.
7) Will an inspector accept a non-metallic junction box buried underground?
Carlon lists the E989 as the first non-metallic junction box UL Listed with a NEMA 6P rating per the Section 314 exception, which is the code section governing outlet, device, pull and junction boxes. That UL Listing with the 6P rating is what you point an inspector to for a buried enclosure. Where the work usually gets flagged is the entries, not the box: with no factory knockouts, every penetration you cut has to be sealed to hold the rating.
8) Is there a deeper Carlon 8x8 burial box than the standard one?
Three 8x8 depths are built: 8x8x4 (E989NB), 8x8x6 (E989SX), and 8x8x7 (E989SSX). The 7 inch is the deepest in the family and is the one to reach for when you are landing conduit on more than one side and need the conductors to turn inside the box rather than press against the cover. There is also an 8x6x4 if the footprint has to stay narrower in the trench.
9) Can I use this Carlon box above ground in an outdoor or wash-down location?
Yes. A NEMA 6P enclosure is rated for prolonged submersion, which is a more severe condition than anything an above-grade outdoor location will throw at it, so a box qualified for burial handles rain, hose spray, and wash-down. The gray molded non-metallic body will not corrode in coastal or chemically damp air either. The same caveat applies as underground: with no knockouts, the seal is only as good as the entries you cut and seal.
How fast can I get the Carlon E989SX delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the
continental
U.S.
Need it urgently? Contact Us for expedited shipping options.
Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit,
reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the Carlon E989SX come with a warranty?
Absolutely. The Carlon E989SX is backed by a manufacturer’s warranty.
For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the Carlon E989SX?
You can call, text, or email our expert support team for fast answers. We’re here to help with
product
selection,
installation tips, and troubleshooting. Contact Us
Why buy the Carlon E989SX from ZenSupply?
ZenSupply makes it easy to get the commercial door hardware you need—fast shipping, expert support,
and
rewards on
every order.
Our team is always ready to help you choose the right product for your project.