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The 3M 7000006050 is a bus bar heat shrink tubing designed to protect rectangular, square, and round bus bars in electrical distribution and power systems. Manufactured from a specially formulated cross-linked polyolefin, this tubing is flame-retardant and track-resistant, making it suited for demanding electrical environments. It ships in a 50-foot length sold by the foot, with a recovered inside diameter range of 5.43 to 8.86 inches to accommodate a wide variety of bus bar profiles. Licensed electricians and electrical contractors typically specify this product for switchgear, panel assemblies, and bus duct installations.
This tubing is applied in commercial and industrial electrical installations where bus bars require insulation, mechanical protection, or both. Its ability to conform to rectangular, square, or round cross-sections makes it versatile across different bus bar geometries. The flame-retardant and track-resistant properties address code compliance requirements in enclosed electrical enclosures and switchgear assemblies where thermal and arc events are a concern.
Designed as an OEM-style insulating sleeve for large rectangular, square, and round bus bars commonly found in commercial and industrial switchgear and power distribution panels.
Installation should be performed by a licensed electrician following applicable NEC requirements. De-energize and lock out the bus bar assembly completely before applying heat shrink tubing. Use an appropriate heat gun with a controlled output to shrink the tubing uniformly along the bus bar length, working from one end to avoid trapping air. Do not use open flame to apply heat.
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