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​​Heavy wall flame retarded heat shrink tube

Heavy wall flame retarded heat shrinkable tubing suitable for use in a nuclear environment, insulates and protects electrical splices and terminations.

Features and Benefits

  • Functional after 850 kGy cumulative dose
  • High resistance to impact and abrasion, lined with thermoplastic adhesive
  • Rated for 600/1000V
  • Shrink ratio: 3:1
  • Continuous Operating temperature: -55°C to 110°C
  • Shrink Temperature: 120°C min.


  • IEEE 383
  • IEC 60684-3-247
  • NF M 64-001
  • IEC 60068
  • LOCA/POSTLOCA in accordance with RCC-E 2007 NF M64-001

Typical Applications

  • Continous use in a nuclear environment, strain relief, sealing, insulable protection on LV cable
  • The sleeves according NF M 64-001, are qualified for use in zones K1, K2 and K3


Select a dimension which will shrink snugly over the application to be covered. If recovery is restricted the resultant wall thickness will be less than specified.
  • Select options:
    • Colors: Black (BK), red (RD)
    • Adhesive Lining: Lined (D) or unlined (U)
  • Please specify the product name, order number and options you require
  • Example: FCFW-N 0350, D, black, 200 pieces, 1.22 m lengths

Please contact your Customer Service Representative for information on custom colors, sizes, lengths and material data sheet.

Product Properties

Order Number Expanded Recovered
  Internal Diameter
(min) D
Internal Diameter
(max) d
Wall Thickness
(min) W
  mm mm mm
FCFW-N 350 9 3 1.8
FCFW-N 500 13 4 2.4
FCFW-N 750 19 6 2.5
FCFW-N 1100 28 9 3.0
FCFW-N 1500 38 12 4.1
FCFW-N 2000 51 16 4.1
FCFW-N 2700 68 22 4.1
FCFW-N 3500 90 30 4.1
FCFW-N 4700 120 40 4.2

Market / Applications

  • Generation - Nuclear
  • OEM


Version: 01 2018/JAN/02
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