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Particularly useful in confined spaces, TE’s Raychem BBIT tubing can be used on both circular and rectangular copper or aluminium busbars. On application of heat the tubing shrinks snugly over the busbar profile ensuring that the required minimum wall thickness is obtained. The BBIT tubing can be installed easily during large scale production using an oven or in the field using a gas torch or hot air. The BBIT tubing is manufactured from a non-halogen based polymer which has excellent performance in high voltage environments and reduces the noxious and corrosive effects in fire situations. The use of the BBIT tubing allows equipment designers the freedom to reduce air spacing between busbars such as in the manufacture of switchgear cabinets where space is at a premium. The BBIT tubing provides flashover protection up to
36 kV.  

Key Features

  • Exceptional insulation and long term reliability even at high continuous operating temperatures
  • Suitable for indoor and outdoor use
  • Excellent anti-tracking properties
  • Flame retardant and halogen-free
  • Good thermal emissivity
  • Long shelf life and can be stored at temperatures up to 50°C without loss of performance
  • REACH and RoHS compliant
  • UL approved
  1. Busbar Insulating Tubing Installation Video (English)

Learn how to install TE Connectivity's Raychem thick wall, heat shrinkable BBIT tubing. Particularly useful in confined spaces, BBIT tubing can be used on both circular and rectangular copper or aluminum busbars.

  • Heat Shrink Technology for Energy Applications (English)


Please review product documents or contact us for the latest agency approval information.  

Product Type Features

  • Material System  Polyolefin

  • Technology  Heat Shrink

Configuration Features

  • Visual Inspection  No

Electrical Characteristics

  • Voltage Class (kV) ≤ 35, ≤ 36

Body Features

  • Color  Red


  • Diameter Supplied/Recovered (mm) 100 / 40, 150 / 60, 175 / 80, 25 / 10, 40 / 16, 65 / 25

  • Diameter Supplied/Recovered (in) .98 / .39, 1.57 / .63, 2.56 / .98, 3.94 / 1.57, 5.91 / 2.36, 6.89 / 3.15

Usage Conditions

  • Operating Temperature Range (°C) 105


  • Equipment  Bus Bars

  • Energized Installation  No

  • Low Halogen  Yes

  • Application Type  OEM

Product Availability

  • Product Availability  AMERICAS, ANZPAC, ASIA, China, EMEA

Related Materials

Datasheets & Catalog Pages

Terms and Conditions

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This information has been provided to your free of charge for your use but remains the sole property of TE Connectivity Corporation (''TE'') or SnapEDA,  Inc. or Ultra Librarian/EMA Design Automation, Inc. (collectively, "Company"). While Company has used reasonable efforts to ensure its accuracy, Company does not guarantee that it is error-free, not makes any other representation, warranty, or guarantee that the information is completely accurate or up-to-date. In many cases, the CAD data has been simplified to remove proprietary detail while maintaining critical interface geometric detail for use by customers. Company expressly disclaims all implied warranties regarding this information, including but not limited to any implied warranties or merchantability or fitness for a particular purpose.