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TE’s Raychem Heat Shrink Wraparound Repair Sleeves fit easily onto the cable to repair the outer jacket and seal against moisture.

TE’s Raychem Wraparound Repair Sleeves (CRSM) are designed using heat shrink technology.  The closure system consists of a raised rail profile and a stainless steel channel that can be installed without any special tools. When heat is applied to the wraparound heat shrink cable jacket repair sleeves, they shrink tightly to the original smaller extruded diameter and to the cable shape. Their hot-melt sealant provides a reliable environmental seal. The wraparound repair sleeves are halogen-free and stabilized against UV radiation, which ensures long-term reliability in harsh environments.

The wraparound sleeves are mainly used as insulation, sealing, or as rejacketing material for 1000V power cables, as well as cable jacket repair for medium voltage power cables and may also be used as protection on various substrates. 

Our wraparound system is very easy to install and is particularly suitable when installation space is tight or difficult to reach.


Key Features

  • Fast and easy fitting thanks to the channel which can be installed without any special tools
  • Reliable closure system and environmental seal with excellent bonding
  • Cross-linked polyolefin material, halogen-free and non-corrosive
  • RoHS and REACH compliant
  • Unlimited shelf-life when stored under normal conditions
  • Qualified to ANSI C119.1 and EN 50393:2015


Frequently Asked Questions

Question: For which application can TE’s Raychem heat shrink wraparound repair sleeves be used?

Answer: Our Raychem wraparound sleeves can be used to repair the outer jacket of the cable and seal against moisture. The closure system consists of a raised rail profile and a stainless-steel channel.


Question: With what type of cable can I use the heat shrink wraparound sleeves?

Answer: Our heat shrink wraparound sleeves are for insulating, sealing or as rejacketing material for 1000V power cables, as well as cable jacket repair for medium voltage power cables. They may also be used as protection on various substrates, where installation space is tight or difficult to reach.


Question: What are the heat shrink wraparound sleeves made of? 

Answer: The wraparound repair sleeves are made of our Raychem heat shrink material. This specially-formulated medium-wall, cross-linked polyolefin shrinks to its original smaller extruded diameter when heat is applied. The heat shrink material is comprised of polymeric materials exposed to a high-energy electron beam that causes permanent cross-linking, or intermolecular joining, of adjacent molecules. Due to cross-linking, the heat shrink material loses its melting properties allowing it to be heated to temperatures beyond the crystalline melting point without melting. Above this temperature, heat shrink can be expanded and formed in shapes that will remain in position while the temperature decreases below the crystalline melting point again.

When properly installed our Raychem heat-shrinkable repair sleeves are long-lasting products that will help you improve your grid connectivity and reliability for decades.


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

Product Type Features

  • Material System  Crosslinked Polyethylene, Crosslinked Polyolefin

  • Power Cable Wrap Technology  Heat Shrink

  • Power Cable Wrap Product Type  Heat Shrink Wraparound

  • Adhesive Coating  Yes

  • Wall Style (Excluding Adhesive)  Single

  • Power Cable Wrap Shrink Ratio  > 2.5:1, >3:1

  • Power Cable Wrap Size Code  CRSM-107/29, CRSM-143/36, CRSM-198/55, CRSM-250/98, CRSM-34/10, CRSM-53/13, CRSM-84/20

  • Product Family  CRSM

  • Component Design  Heat Shrink

  • Coating Style  Inline

Electrical Characteristics

  • Power Cable Wrap Voltage Rating (kV) ≤ 1

Body Features

  • Flexibility  Semi-Rigid

  • Color  Black

Mechanical Attachment

  • Mechanical Reinforcement  No


  • Application Diameter (Max) (mm) 21, 27, 32, 43, 50, 65, 68, 86, 120, 150

  • Application Diameter (Max) (in) .826, 1.259, 1.968, 2.559, 3.385, 4.724, 5.905

  • Application Diameter (Min) (mm) 11, 17, 24, 31, 32, 33, 39, 56, 60, 103

  • Application Diameter (Min) (in) .433, .669, .944, 1.22, 1.299, 2.204, 4.055

  • Wall Thickness  Medium

  • Recovered Wall Thickness (Max) (mm) 1.7, 1.8, 2, 2.1, 2.4

  • Power Cable Wrap Expanded Inside Diameter (Min) (mm) 34, 35, 53, 54, 84, 86, 107, 108, 143, 144, 198, 203, 257

  • Power Cable Wrap Expanded Inside Diameter (Min) (in) 1.377, 2.125, 3.385, 4.251, 5.669, 7.992, 10.11

  • Power Cable Wrap Recovered Inside Diameter (Max) (mm) 9, 10, 13, 15, 20, 21, 27, 28, 29, 36, 50, 55, 91

  • Sleeve Length (mm) 200, 250, 375, 500, 600, 750, 1000, 1200, 1500, 2000

  • Sleeve Length (in) 9.846, 19.685, 29.527, 39.37, 47.244, 59.055, 78.74

  • Cut Length (mm) 1000, 1200, 1500, 200, 2000, 250, 375, 500, 600, 750

Usage Conditions

  • Power Cable Wrap Flammability  Non-Flame-Retardant

  • Environmental Resistance  Moisture, Weathering, Rain, Salt Water, Contaminated Water …, Water-Blocking

  • Chemical Resistance  Transformer Oil & Hydrocarbons (Both, Depending on Type, Conditions & Exposure Time), Transformer Oil & Hydrocarbons (Both, strongly depending on oil/hydrocarbon type, conditions & exposure time)


  • UV-Stabilized  Yes

  • Mechanical Resistance  Against Mechanical Impact or Damage, Against Mechanical Impact

  • Free of Lead, Cadmium, Heavy Metals  Yes

  • Low Smoke Emission  No, Yes

  • Non-Toxic & Non-Corrosive Emission  Yes

  • Application  Cable Jacketing, Cable Repair, Rejacketing/Outer Protection on Joints/Splices, Insulation & Protection, Rail Application, Marine Application, Industrial Application, Underground Application, Multi-Purpose Application

  • Marine-Offshore-Shipbuilding Certified  No, Yes

  • Thermal Resistance  Applicable for Low Temperatures, Applicable for Low Temperatures, Applicable for High Temperatures, Flame-Retardant

Industry Standards

  • UL Rating  No

  • Standards  ANSI C119.1, HD631.2, IEC 60684-3-214, IEC 60684-3-214, IEC 60684-3-246 IEC 60684-3-247, HD631.2, IEC 60684-3-246, IEC 60684-3-247

  • CSA Certified  No

Product Availability

  • Power Cable Wrap Product Availability  Worldwide

Packaging Features

  • Packaging Method  Pieces, Wrap-Around with Channels & Clips in Polybag


  • Product Use  LV cable repair, MV cable jacket repair, MV splice rejacketing, Elbow sealing sleeve, Wrap-Around, Sealed Cable Tap Splice

  • Other Colors Available  No

  • Emission-Free  No

Related Materials

Datasheets & Catalog Pages

Terms and Conditions

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