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Shrink Coupler

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Shrink Coupler Specification

Weight
Depends on size; approximate 10-80 grams

Conductor Type
Solid or stranded

Number of Conductor
Single (per coupler)

Conductor Shape
Round

Features
Easy installation, strong grip, versatile compatibility with various cable sizes, corrosion resistant, secure and durable connection

Dielectiric Strength
15kV/mm

Core Material
Copper

Core Number
Single core

Locking Type
Compression fit

Install Type
Heat shrink installation

Diameter
5 mm to 40 mm (varies by model)

Usage & Applications
Electrical cable repair, extension, industrial and domestic wiring

Cable Type
Low and medium voltage cables

Rated Temperature
-40C to +125C

Tensile Strength
14 MPa

Operating Temperature
-40C to +125C

Insulation
Double wall, heat shrinkable

Armored Material
Not armored

Product Type
Shrink Coupler

Length
Standard lengths available, customizable as per requirements

Voltage
Up to 1000V

Insulation Material
Cross-linked polyolefin (heat shrinkable) sleeve

Application
Cable joining, splicing, electrical connections, mechanical reinforcement

Conductor Material
Copper or tinned copper (as per cable type)

Jacket Material
Polyolefin

Storage Temperature
-20C to +60C

Connector Color
Red (as pictured, can vary by type)

Jacket Color
Red

Dimension (L*W*H)
Varies with model; typical outer diameter ranges from 5 mm to 40 mm

Color
Red

Material
Heat shrink polyolefin and copper insert

Size
Available for cable sizes 1.0 mm to 120 mm

Minimum Shrink Temperature
+80C

Service Life
>20 years under standard use

Flammability Rating
UL 224 VW-1

Temperature Range for Installation
+80C to +120C (heat shrink activation)

RoHS Compliance
Yes

Inner Adhesive
Hot-melt adhesive for waterproof sealing

Corrosion Resistance
Excellent

Shrink Ratio
2:1 or 3:1 depending on type

UV Resistance
Yes

Waterproof Level
IP67 after shrinking

Maximum Withstand Voltage
1500V for 1 minute

Packaging
100 pcs/bag, custom packaging available

Contact Resistance
<5m after installation

Shrink Coupler Trade Information

FOB Port
Mumbai

Payment Terms
Cheque

Delivery Time
4 Week

Sample Policy
Contact us for information regarding our sample policy

Packaging Details
corrugated boxes

About Shrink Coupler

Provided Shrink Coupler is tubing suitable to joint corrugated HDPR pipes. It is widely used in water management, irrigation, sanitary, sewer and drainage, construction and mining industries. Apart from this, it is suitable for underground cable protection for broadly used for various applications which require high torque and bending moment, due to the heavy-duty design. Further, offered Shrink Coupler is suitable for mounted around the shafts to be clamped together or available in different sizes. Apart from this, our Shrink Coupler is known for their features like perfect finish, sturdy design and rust resistance.

Superior Waterproof and Insulation Performance

This shrink coupler offers IP67 waterproof protection after shrinking, making it ideal for both indoor and outdoor cable projects. The double-wall, heat-shrinkable insulation ensures robust dielectric strength (15kV/mm) and reliable electrical isolation, giving confidence in harsh environments or critical repairs.

Easy and Versatile Installation

Installation is straightforwardsimply place the coupler over the connection and apply heat (between +80C to +120C). The sleeve shrinks tightly around the cable, while the inner hot-melt adhesive forms a waterproof seal. The coupler is compatible with a variety of cable sizes, both solid and stranded, supporting mechanical and electrical reinforcement with minimal effort.

Engineered for Longevity and Safety

Constructed from cross-linked polyolefin and high-quality copper, this coupler boasts a service life exceeding 20 years under standard use. It is UL 224 VW-1 flammability rated, UV and corrosion resistant, meeting RoHS standards for sustainable operations. Its sturdy design ensures high tensile strength (14 MPa) and operational safety up to +125C.

FAQs of Shrink Coupler:

Q: How do I properly install the shrink coupler for a waterproof connection?

A: To install, position the shrink coupler over the spliced or joined cables, ensuring the bare copper ends are inside the coupler. Apply heat (between +80C to +120C) with a heat gun until the sleeve shrinks uniformly and the hot-melt adhesive flows, forming a tight, waterproof seal (IP67). Allow the assembly to cool before handling.

Q: What cable sizes and types are compatible with this shrink coupler?

A: This product supports cable sizes ranging from 1.0 mm to 120 mm and works with both solid and stranded copper or tinned copper conductors. It accommodates single-core low and medium voltage cables, making it versatile for electrical, industrial, and domestic applications.

Q: Where can the shrink coupler be used for optimal performance?

A: The coupler is suitable for various environments: electrical cable repairs, extensions, new splices, industrial setups, and outdoor installations. Its IP67 waterproofing, UV resistance, and robust dielectric properties ensure unfailing performance in demanding indoor or outdoor conditions.

Q: What are the key benefits of using a heat-shrinkable coupler over traditional connectors?

A: A heat-shrinkable coupler offers secure, long-lasting, and corrosion-resistant electrical joints. It minimizes contact resistance (<5m), ensures reliable waterproofing, provides a strong grip, and extends service life to over 20 yearsall with easy installation, reducing downtime and maintenance costs.

Q: When should I choose a shrink coupler with a 2:1 or 3:1 shrink ratio?

A: Selecting the shrink ratio depends on the cable size variation. A 3:1 shrink ratio is recommended when covering cables with significant diameter differences or irregular connections, ensuring a snug fit. Use 2:1 for standard or minimal diameter variations.

Q: Is the shrink coupler compliant with safety and environmental standards?

A: Yes, the product is RoHS compliant, adheres to the UL 224 VW-1 flammability rating, and is made from high-quality materials that ensure electrical safety, durability, and environmental responsibility.

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