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Panduit HSTT400-L - Thin wall heat shrink, 4" (101.6mm) diameter, black cross-linked polyolefin, 50 ft. (15.2m) per reel.
Panduit

HSTT400-L

UPC: 074983913954


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Overview

Panduit HSTT400-L is a 4" (101.6mm) diameter thin wall heat shrink tubing engineered for reliable insulation and protection in industrial applications. Made from black cross-linked polyolefin, this tubing delivers excellent mechanical strength, chemical resistance, and long-term durability. Each reel contains 50 feet (15.2 meters) of tubing, providing cost-effective coverage for large projects. The thin wall design ensures a tight fit over connectors, splices, and terminals, reducing bulk while maintaining robust protection. Key specifications include a 2:1 shrink ratio, allowing the tubing to reduce to approximately half its original diameter when heated. This forms a secure, moisture-resistant seal ideal for wire harnesses, cable assemblies, and electrical insulation where space efficiency and performance are critical. The tubing meets industry standards for electrical insulation, including Mil Spec AMS-DTL-23053/5 Class 1, UL E122770, and CSA 222627. It is rated for 600V applications and operates within a temperature range of -67°F to 275°F (-55°C to 135°C), making it suitable for dry locations. Compatible with standard heat shrink tools, the HSTT400-L is widely used in manufacturing, automotive, and telecommunications sectors. Its flame-retardant properties and halogen-free composition ensure compliance with safety regulations. The 5-year shelf life guarantees long-term reliability without degradation of performance. For projects requiring durable, space-efficient insulation, the HSTT400-L delivers consistent results with minimal bulk.
  • 4" (101.6mm) diameter thin wall heat shrink tubing
  • Black cross-linked polyolefin material for durability and chemical resistance
  • 50 ft (15.2m) per reel for large-scale projects
  • 2:1 shrink ratio for secure, moisture-resistant seals
  • Meets Mil Spec AMS-DTL-23053/5 Class 1, UL E122770, and CSA 222627 standards

Specifications

Application
For Dry Locations
Color
Black
Connection Type
Heat Shrink
Flammability
Flame Retardant
Inside Diameter After Heat-Shrink
2 in
Inside Diameter After Heat-Shrink
50.8 mm
Inside Diameter Before Heat-Shrink
2 in
Inside Diameter Before Heat-Shrink
50.8 mm
Material
Cross-Linked Polyolefin
Minimum Shrink Temperature
194 F
Minimum Shrink Temperature
90 C
Operating Temperature, Maximum
275 F
Operating Temperature, Maximum
135 C
Operating Temperature, Minimum
275 F
Operating Temperature, Minimum
135 C
Outside Diameter
4 in
Outside Diameter
101.6 mm
Series
HSTT
Shrink Ratio
2:1
Size
4" (101.6mm) diameter
Size
4" (101.6mm)
Standard
UL Recognized, CSA Approved, MIL SPEC
Thickness
0.055 in
Thickness
1.397 mm
Type
Heat-Shrink
Volume Resistivity
Flame-Retardant
Package Dimensions (L x W x H)
21.4 IN x 21.4 IN x 9.4 IN
Package Weight (Imperial)
11.88 lbs
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How to Install Heat Shrink Tubing

This guide provides step-by-step instructions for properly installing heat shrink tubing to ensure effective insulation and protection of electrical connections.

Estimated time: 15m

Tools needed:

Heat gun, Infrared heat source, Soft yellow flame torch, Oven

Supplies needed:

Heat shrink tubing

  1. Position the heat shrink tubing

    Place the heat shrink tubing over the object to be covered without stretching it.

  2. Heat the tubing

    Using a heat gun, infrared heat source, soft yellow flame torch, or oven, evenly heat the tubing until it fully recovers and conforms to the object.

  3. Avoid charring

    Ensure that you do not char or burn the tubing during the heating process.

Frequently Asked Questions about Panduit

What environmental ratings do Panduit products have?

Panduit products feature comprehensive environmental ratings across multiple standards, including UL 508A Type 1, 2, 3, 4, 4X, 12, and 13; CSA Type 1, 2, 3, 4, 4X, 12, and 13; and NEMA Type 1, 2, 3, 4, 4X, 12, and 13. They meet IEC 60529 IP66 rating, providing robust protection against dust, water, and corrosion in both indoor and outdoor environments, with operating temperatures ranging from -40°C to 130°C.

What certifications and standards do Panduit products comply with?

Panduit products are certified to multiple critical industry standards, including UL (Underwriters Laboratories) in the USA and Canada, CSA (Canadian Standard Association), EN IEC 61386, LVD 2006/G5/EC, and ARRA standards. Our products meet rigorous certifications for electrical safety, environmental compliance (WEEE and RoHS), and are designed to perform in extreme temperatures ranging from -55°C to 105°C, making them suitable for demanding industrial environments.

What industries and applications are Panduit products used for?

Panduit products are engineered for critical applications across multiple industries, including commercial construction, food and beverage, oil and gas, renewable energy, transportation, and safety-critical environments. Their solutions span electrical infrastructure, wire management, cable ties, power connectors, and safety systems designed to withstand extreme conditions like high vibration, temperature variations, UV exposure, and corrosive agents. Key industries include solar and wind energy, aerospace, heavy trucking, military, commercial transportation, and industrial manufacturing.

What are the main product lines offered by Panduit?

Panduit offers a comprehensive range of electrical infrastructure products including power connectors, cable ties, grounding connectors, identification products, safety solutions, terminals, cable cleats, wiring duct, and cable tie accessories. These products are engineered for industrial environments across multiple sectors like commercial construction, food and beverage, oil and gas, renewable energy, transportation, and safety applications.

What are the key features of Panduit products?

Panduit products are engineered for robust performance in heavy-duty industrial environments, featuring a comprehensive range of solutions including cable ties, power connectors, terminals, and identification products. Key features include proven quality performance, subject matter expertise, and customer-driven innovation across multiple industrial sectors such as commercial construction, food and beverage, oil and gas, renewable energy, transportation, and safety applications. The product line is designed to maximize productivity, reliability, and safety while meeting stringent industry standards.

What is Panduit's warranty policy?

Panduit provides a comprehensive Limited Product Warranty that can be fully reviewed on their official website at www.panduit.com/warranty. All Panduit products are subject to the terms, conditions, and limitations of this current warranty. Customers are advised to review the specific warranty details for their particular product, as Panduit requires buyers to determine product suitability for their intended use and assumes all associated risks.

What technical support does Panduit offer?

Panduit offers comprehensive technical support through their dedicated customer service team, accessible via phone at 1-800-777-3300. They provide expert assistance for their full range of industrial infrastructure products, including cable ties, power connectors, terminals, and identification solutions. Customers can also access additional technical resources and product information through their website at www.panduit.com.

What accessories are available for Panduit products?

Panduit offers a wide range of accessories across multiple product lines, including cable ties, cable tie accessories, cable tie tools, identification products, cable cleats, grounding connectors, and VeriSafe accessories like the VeriSafe Network Module and Insulation Piercing Connectors. For a comprehensive view of all available accessories, customers are recommended to visit www.panduit.com for the full product catalog.

How are Panduit products typically installed?

Panduit products are engineered for comprehensive installation across industrial environments, utilizing specialized tools and techniques for precise mounting. Installation methods vary by product line - from cable ties and power connectors to terminals and identification solutions - but all are designed for robust performance in heavy-duty settings. Technicians typically use Panduit's dedicated installation tools and follow manufacturer guidelines available at www.panduit.com to ensure proper fitting and maximum infrastructure reliability.