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TE’s Raychem ZCSM tubing is an uncoated, zero-halogen, thick-wall type and low fire hazard tubing. It is used for jointing and protection of low fire hazard cables commonly used in offshore, marine, mining, shipbuilding, construction industry, transportation network and equipment. The ZCSM tubing is approved for core insulating and as rejacketing of safety class cables, in high-rise buildings, public buildings, subways, road or railway tunnels requiring insulation or circuit integrity even under fire condition. The optical smoke density produced by the ZCSM tubing in fire conditions has been measured in accordance with methods as defined in standard IEC 61034. The range of thick-wall ZCSM tubing provides protection to the same fire standards as modern low smoke, low fire hazard cable specifications. The material content of the ZCSM tubing is halogen-free and stabilized against UV irradiation. The ZCSM tubing is fast and easily installed and has proven its long-term reliability in harsh climatic conditions and polluted environments. It also has an unlimited shelf-life when stored under normal conditions.


  • High electrical characteristics and mechanical strength for low voltage applications
  • Thick-wall, cross-linked polyolefin. UV stabilized against irradiation and weathering
  • Flame retardant in accordance with IEC 60332-1. Approved for applications with safety class cables
  • Halogen-free, non-corrosive, free of lead and aluminium
  • Compliant to RoHS and REACH regulations. Approved for offshore applications
  • Color black, 2.5:1 shrink ratio
  • Unlimited shelf-life


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

Product Type Features

  • Material System  Crosslinked Polyolefin

  • Technology  Heat Shrink

  • Product Type  Heat Shrink Tubing

  • Adhesive Coating  No

  • Shrink Ratio  > 2:1

  • Wall Style (Excluding Adhesive)  Single

Body Features

  • Flexibility  Flexible, Semi-Flexible


  • Application Diameter (Max) (mm) 7, 14.5, 21.5, 29, 40.5, 54, 63, 76.5, 108, 162

  • Application Diameter (Min) (mm) 3.5, 5.5, 9, 13, 17.5, 24, 27.5, 39.5, 55, 82.5

  • Expanded Inside Diameter (Min) (mm) 8, 16, 24, 32, 45, 60, 70, 85, 120, 180

  • Recovered Inside Diameter (Max) (mm) 3, 5, 8, 12, 16, 22, 25, 36, 50, 75

  • Cut Length (mm) 1000, 1200, 1300, 1500

  • Recovered Wall Thickness (Max) (mm) 2, 2.4, 2.9, 4, 4.2

  • Wall Thickness  Thick/Heavy

Usage Conditions

  • Flammability  Flame-Retardant


  • UV-Stabilized  Yes

Product Availability

  • Product Availability  AMERICAS, ANZPAC, ASIA, EMEA

Related Materials

Datasheets & Catalog Pages

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