Raychem ZHTM Heat Shrink Tubing by TE Connectivity: High-Quality Insulation for Safe Environments
The Raychem ZHTM heat shrink tubing by TE Connectivity is a flexible, thick-walled heat-shrinkable tube, designed for use with the Raychem -100 series crimp connections and Zerohal cables to form System 100.
The tubing material provides excellent fire safety characteristics, such as low smoke emission and minimal release of corrosive gases, while maintaining strong mechanical properties and resistance to fluids. These features make ZHTM tubing ideal for applications where both fire protection and durability are critical.
Applications and Benefits of Raychem ZHTM Heat Shrink Tubing
Raychem ZHTM tubing is widely used for insulating and protecting cables, harnesses, and electrical/electronic components in enclosed spaces. It is often applied in demanding environments such as marine applications, mass transit systems, and offshore installations, where toxicity risk during fire is a concern.
ZHTM tubing helps reduce the risk of toxic smoke and corrosive combustion products, protecting sensitive equipment from irreparable damage. Its excellent fire safety properties and long-term reliability make it an essential choice for high-risk environments.

Features of ZHTM Heat Shrink Tubing
Product dimensions Raychem ZHTM heat shrink tubing
Low-toxicity heat shrink tubing with 2:1 shrink ratio – click to view the available products
Part Number |
VG Number |
Size |
Diameter before shrink |
Diameter after shrink |
Wall thickness |
|---|---|---|---|---|---|
| ZHTM-3/1.5-0-SP | VG 95343 T05 L001 A | 3/1.5 | 3 mm | 1.5 mm | 0.70 ± 0.10 mm |
| ZHTM-5/2.5-0-SP | VG 95343 T05 L002 A | 5/2.5 | 5 mm | 2.5 mm | 0.75 ± 0.12 mm |
| ZHTM-8/4-0-SP | VG 95343 T05 L003 A | 8/4 | 8 mm | 4.0 mm | 0.80 ± 0.15 mm |
| ZHTM-12/6-0-SP | VG 95343 T05 L004 A | 12/6 | 12 mm | 6.0 mm | 0.90 ± 0.15 mm |
| ZHTM-18/9-0-SP | VG 95343 T05 L005 A | 18/9 | 18 mm | 9.0 mm | 1.00 ± 0.18 mm |
| ZHTM-24/12-0-SP | VG 95343 T05 L006 A | 24/12 | 24 mm | 12.0 mm | 1.10 ± 0.20 mm |
| ZHTM-40/20-0-SP | VG 95343 T05 L007 A | 40/20 | 40 mm | 20.0 mm | 1.30 ± 0.23 mm |
| ZHTM-50/30-0-SP | VG 95343 T05 L008 A | 50/30 | 50 mm | 30.0 mm | 1.50 ± 0.28 mm |
Ordering Information Raychem ZHTM Heat Shrink Tubing
Standard color: Black (-0)
Size selection: Always order the largest size that will accurately shrink over the component to be covered.
Packaging: Reels
Ordering description: Specify product name, size, and color (for example ZHTM 8/4-0-SP).
BS 4G-198 Part 3 Type 15
BS 4G 198-3 is a standard for shrink fittings or heat shrink tubing for the aerospace industry and is classified under the following ICS categories: 49.060 Space electrical equipment and systems.
This part of BS 4G 198 specifies the design, performance, quality assurance, and test methods for the types of heat-shrinkable sleeves listed in Table 1 and Table 2. These sleeves are intended for bundling, insulation, and identification purposes. Routine tests and quality checks are also specified. These shrink fittings can be used in both aerospace and non-aerospace applications.
Where specified, shrink fittings used with adhesives and/or heat-shrink formed shapes must comply with the compatibility test requirements as described in Part 5.
In addition to the final requirements, this standard also requires that items as described in Clause 3 are properly documented. To comply with this standard, both the final requirements and the documented items must be met.

Certification:
Our Markets
The applicability of heat shrink tubing and the benefits it provides make it suitable for nearly every market. An overview:

Automotive

Defense & Military Mobility

Our Markets
The applicability of heat shrink tubing and the benefits it provides make it suitable for nearly every market. An overview:

Aerospace

Energy & Utility

Industrial machines

Oil & Gas

Truck, Bus & Offroad vehicles
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