IDEAL Industries 46-369 Thermo-Shrink® Heavy-Wall Heat Shrink, 9" Length, 500-1,000 MCM, 100 Pack

The 46-369 Thermo-Shrink heavy-wall tubing is sized for 500 to 1,000 MCM conductors, with a 9 inch recovered length. The 3:1 shrink ratio is what lets one part cover that range, so it will pull down over the larger splice bodies in that band as well as the smaller ones. For anything under 500 MCM you want a smaller heavy-wall size.

Yes. The adhesive liner in the 46-369 tubing seals the splice for above-grade, underground, and underwater use. The liner melts and flows as the tube recovers, so it fills around the connector and conductor insulation rather than just shrinking over it. That adhesive is the reason it works in wet locations, so get the heat all the way around until you see adhesive flow at both ends.

Rated 600V and 90 degrees C for continuous use. That covers typical secondary distribution, feeder, and underground service splices, and the 90 C rating matches the common conductor insulation temperature rating so the tubing is not the weak link in the splice.

It ships as a 100 piece pack of 9 inch tubes. That is a bulk quantity aimed at utility crews, line contractors, and MRO stockrooms doing repeat large-conductor splices, not a one-off repair count.

Heavy-wall tubing such as the 46-369 is built to replace the insulation and jacket on a power splice, not just to dress a wire end. It carries a 600V, 90 C rating, an internal adhesive sealant for moisture blocking, and it meets NEMA insulation thickness requirements. Thin-wall tubing is generally used for strain relief, marking, and light abrasion protection and is not a sealed insulation system. If you are splicing 500 to 1,000 MCM conductors, heavy-wall with adhesive is the correct class of product.

Yes. The TS-46 irradiated cross-linked polyolefin material is formulated for maximum flame retardancy and the product is listed against the IEEE 383 vertical flame test and ANSI C37.20.2, the metal-clad switchgear standard. That combination is what facility and utility specs look for when tubing goes inside enclosures or on vertical cable runs.

Order IDEAL Industries part number 46-369. That single catalog number covers the 9 inch, 500 to 1,000 MCM heavy-wall adhesive-lined tube and comes 100 to a pack, so there is no finish, color, or sub-option to specify.