Panduit KP-HSTT1 Selection Guide

Download

Product Selection Guide

Heat Shrink

Product Selection Guide

Heat Shrink Frequently Asked Questions:

1. What are the main considerations when installing heat shrink?

Pick the right diameter. (See Wire Size Chart on page 5)

•

Consider the overlap between the tube and the cable insulation

•

Heat evenly around the tube

•

If using a flame, use a diffuser and keep it moving; start further away from the tube and move closer gradually

•

 Ifit’sadhesivelinedproduct,theadhesivewillbepushedawayfromtherecoverystartingpoint;ingeneral,startrecovering

•

at the center and work toward each end

2. What’s the significance of a material being cross linked?

The majority of heat shrink is made from cross linked materials. Cross linked materials do not melt and flow; they soften and become rubbery but still hold their basic shape. The main benefit is improved thermal, physical and chemical resistance.

3. Why is shrink temperature important?

A tube with a lower shrink temperature will generally shrink faster. Products with higher shrink temperatures generally have higher performance. With any heat shrink tube, you can increase the shrink speed by using hotter temperatures, within reason. Be sure to consider the heat resistance of components under or around the heat shrink.

4. Can the tube be damaged by overheating and what are the signs of overheating?

Excessive temperatures and long exposure times cause damage faster. Most tubes will withstand 200°C to 250°C for a couple of hours without significant damage. Overheating can be difficult to detect since damage may not be obvious. If using a torch, use a flame diffuser, keep the flame at a proper distance, and keep the flame moving to apply heat gradually. Heat guns are easier to work with but can still cause damage. Charring, blistering, or cracking of the surface is a definite sign of overheating and damage.

5. How does operating temperature range relate to shrink temperature?

If the operating temperature is above the shrink temperature of the tube, the tube will be in a soft rubbery state, and it will have lower mechanical properties and abrasion resistance.

6. What is the significance of shelf life?

Per AMS-DTL-23053, all tubes have a defined minimum shelf life, dependent on the base material. The main consideration is expanded and recovered dimensions. If the product meets requirements, the shelf life can be extended up to 50% of the original value and this can be done multiple times.

7. What’s the maximum voltage at which I can use Panduit heat shrink?

Unless noted otherwise, all the products have a 600V AC rating. They are “low voltage” products. Per NEMA, Low Voltage is 600V or less; Medium Voltage is 2,400 to 69,000V; and High Voltage is 115k to 230kV.

Dry Locations:

A location not normally subject to dampness or wetness. A location classified as dry may be temporarily subject to dampness or wetness, as in the case of a building under construction.

Damp Locations:

Locations protected from weather and not subject to saturation with water or other liquids but subject to moderate degrees of moisture. Examples of such locations include partially protected locations under canopies, marquees, roofed pen porches, and like locations, and interior locations subject to moderated degrees of moisture, such as basements, some barns, and some cold storage buildings.

Wet Locations:

Installations underground or in concrete slabs or masonry in direct contact with the earth; in locations subject to saturation with water or other liquids, such as vehicle washing areas; and in unprotected locations exposed to weather.

Material Selection Criteria

Applications

D R Y

D A M

E T

Heat Shrink

Product

Type Material Key Characteristics Typical Applications

General use, strain relief, insulate, protect, bundle, and color code wires, cables and electrical components in a wide variety of applications

Strain relief, insulate, protect, and bundle cables and electrical components in a wide variety of applications

Applications with PVC wire and cable insulation, strain relief, bundling and protection from UV light, fading, harsh chemicals, chlorinated cleaners, dirt and abrasion

Applications with PVC wire and cable insulation, smooth clear cover, protecting wire and cable markers, continuous inspection of splices, and protection from UV fading

Insulate, protect wires, cables and electrical components in rugged applications, including military, marine and aerospace

Insulate, protect wires, cables and electrical components requiring high insulation, high and low temperature resistance including cryogenic temperatures, clean rooms and aerospace, and resistance to corrosive atmospheres

Protection and strain relief for wires or connectors in plenum applications and severe environments, including nuclear plants, automotive, and electrical component jacketing

Seals and protects cables, components and splices from moisture and corrosion, including automotive, truck, and marine applications, where greater flexibility is needed

Seals and protects cables, components and splices from moisture and corrosion, including automotive, truck, and marine applications

Seals and protects cables, components and splices from moisture and corrosion, including automotive, truck, and marine applications, especially when working with large transitions

Seals, protects and encapsulates cables, components and splices from moisture and corrosion. Heavy strain relief and rugged protection against vibration and flexing.

Seals, encapsulates and protects electrical connections and splices above or below ground. Especially in harsh environments such as wind energy and solar applications. Can be used at 1kV.

Temporary or permanent watertight sealing of cable ends, pipe and conduit

Temporary or permanent watertight sealing of cable ends, pipe and conduit, in harsh environments

HSTT

HSTTV

HSTTP

HSTTPN

HSTTN

HSTTT

HSTTK

HSTTVA

HSTTA

HSTT4A

HSTTRA

HST

HSEC

(End Cap)

HSECFR

(End Cap)

Polyolefin (Cross-Linked)

Polyvinylchloride-PVC (Cross-Linked)

Crystal Clear Polyvinylchloride-PVC

Elastomer Neoprene (Cross-Linked)

Polytetrafluorethylene (TFE/PTFE)

Fluoroplastic PVDF (Cross-Linked)