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Carlon E989N-CAR 8 x 8 x 4 in Polycarbonate Screw Cover Junction Box
The Carlon E989N-CAR is a molded polycarbonate junction box measuring 8-Inch x 8-Inch x 4-Inch, engineered to provide a durable, non-metallic enclosure for splicing and housing electrical connections. Built with a screw-cover design, this junction box offers a secure, removable access point for wiring while maintaining a rugged molded-polycarbonate body that resists corrosion in demanding electrical installations. As part of the Carlon lineup, the E989N-CAR is a practical solution for electricians and contractors who need a reliable, non-conductive enclosure sized to accommodate multiple conductors and connections in a single compact housing.
Key Features
- Box Dimensions: 8-Inch x 8-Inch x 4-Inch molded enclosure sized to house multiple conductors, splices, and connections in a single junction point.
- Durable Construction: Molded polycarbonate body provides a rugged, non-metallic enclosure that resists corrosion and degradation compared to traditional metallic boxes.
- Screw Cover Access: A screw-secured cover allows for controlled, tool-based access to the interior wiring while keeping the enclosure closed and protected during normal operation.
- Non-Conductive Material: Polycarbonate construction eliminates concerns related to metallic conduction, making it a suitable choice where a non-metallic junction enclosure is preferred.
- Compact Molded Design: The molded, one-piece body construction is designed for straightforward mounting and integration into conduit and wiring runs.
Technical Specifications
- Box Size: 8-Inch x 8-Inch x 4-Inch
- Material: Molded Polycarbonate
- Cover Type: Screw Cover
- Brand: Carlon®
Typical Applications
- Junction and Splice Points in Conduit Runs
- Commercial and Industrial Electrical Installations
- Non-Metallic Wiring Enclosures Where Corrosion Resistance Is Desired
- New Construction and Renovation Electrical Projects
- Conductor Housing and Wire Management
Why Carlon?
Carlon® is a recognized name in non-metallic electrical products, and the E989N-CAR junction box reflects that reputation with a molded polycarbonate build designed for durability in demanding wiring environments. The screw-cover design and rugged molded construction make this enclosure a dependable choice for professionals who need a non-metallic junction box that stands up to daily use while providing straightforward access to internal connections.
Manufacturer Resources
Product Specs
- list_batch:
- CRL-20260924
- Product Type:
- Junction Box
- Configuration:
- Screw Cover
- Department:
- Electrical
- Product Subgroup:
- Electrical Boxes
- Product Material:
- Polycarbonate
- Product Group:
- Boxes & Enclosures
- Product Color:
- Gray
Carlon E989N-CAR – Frequently Asked Questions
1) What size is the Carlon E989N-CAR junction box inside, and will it hold multiple splices?
The E989N-CAR measures 8 x 8 x 4 inches, which is a large enough body to land several conductors and splice points at one junction rather than splitting them across two smaller boxes. It is a one-piece molded body with a screw-secured cover, so the wiring stays enclosed until you back the screws out.
2) What is a non-metallic alternative to the Carlon E989N-CAR junction box?
The Cantex E983G is a non-metallic PVC junction box family, so it keeps the same non-conductive, corrosion-resistant approach as the Carlon E989N-CAR. The difference is material: the E989N-CAR body is molded polycarbonate with a screw cover, while the Cantex option is PVC. For a splice point in a conduit run where you want to stay away from metal, either material answers that requirement; confirm the PVC box comes in the cubic capacity you need for your conductor count before you swap.
3) The 8 x 8 x 4 Carlon E989N-CAR is too large for my opening - what smaller box should I use?
For a small splice where an 8-Inch x 8-Inch x 4-Inch enclosure will not fit, the Cantex 5133690 is a 4-1/8 inch junction box that ships with a 1/2 inch knockout and a cover, and the Orbit D4SB is a 1-1/2 inch deep 4 inch square junction box in drawn steel. Both are a fraction of the volume of the Carlon E989N-CAR, so plan on fewer conductors and splices in the box. Note the Orbit is steel rather than the non-metallic polycarbonate of the E989N-CAR.
4) When should I specify a steel box instead of the Carlon E989N-CAR polycarbonate box?
Where the job calls for a metallic enclosure - for example a run that bonds through the box or a location where a steel body is specified on the drawing - the Orbit 4SDB is a welded steel square deep box with a 1 inch knockout, and the Orbit D4SB is a drawn steel 4 inch square box 1-1/2 inches deep. The Carlon E989N-CAR goes the other direction on purpose: its molded polycarbonate body is non-conductive and resists corrosion, which is why it is chosen for damp or chemically aggressive locations rather than for bonding continuity.
5) Screw cover versus snap or hinged cover on a junction box, which should I use?
A screw cover like the one on the Carlon E989N-CAR requires a tool to open, which is what you want on a splice point that should not be casually opened and that stays closed for the life of the run. Snap covers are faster for boxes you expect to revisit often. The E989N-CAR cover is removable, so you still get full access to the interior when you need it.
6) What part number do I order for the Carlon 8x8x4 polycarbonate screw cover box?
Order Carlon E989N-CAR. That is the manufacturer part number for the 8 x 8 x 4 inch molded polycarbonate screw-cover junction box, and it is sold as a single configuration, so there are no finish or size options to pick.
7) I need a smaller non-metallic junction box than the 8x8x4 Carlon. What else is there?
For a smaller non-metallic point, the Cantex 5133690 is a 4-1/8 inch PVC junction box that comes with a 1/2 inch knockout and a cover, and the Cantex E983G is another non-metallic PVC junction box family. Both keep the non-conductive, corrosion-resistant benefit of the Carlon E989N-CAR in a much smaller body, so they suit a single device drop or a two or three conductor splice rather than a multi-circuit gathering point.
8) Can I use the Carlon E989N-CAR as a pull or splice point in a conduit run?
Yes, that is its intended use. The E989N-CAR is sized and built as a junction and splice point in conduit runs, for commercial and industrial installs, new construction and renovation work, and anywhere a non-metallic enclosure is preferred over steel.
9) Does a 4 inch square box with a cover count as a substitute for the Carlon E989N-CAR?
It looks like one on a parts list but it is not a functional equal. The Cantex 5133690 is a 4-1/8 inch box with a 1/2 inch knockout and a cover, and the Orbit 4SDB is a welded steel square deep box with a 1 inch knockout - both are device-scale boxes. The Carlon E989N-CAR is an 8-Inch x 8-Inch x 4-Inch molded polycarbonate screw-cover enclosure intended to hold multiple conductors and splices at one junction point, so swapping down changes your available wiring volume and your conduit entry size.
10) Does the Carlon E989N-CAR come with the cover, or do I buy that separately?
The cover is part of the E989N-CAR. It is a screw-cover box, so the enclosure ships as a molded polycarbonate body with the screw-secured cover that closes it.
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Does the Carlon E989N-CAR come with a warranty?
Absolutely. The Carlon E989N-CAR is backed by a manufacturer’s warranty.
For full warranty terms, check the product documentation or Contact Us.
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