EM Group Heat Shrinkable Through Joint ZRN3X4 for 4-Core Cables 50-120mm2

The EM Group ZRN3X4 heat-shrinkable through joint is a professional-grade solution engineered for the reliable connection of 4-core power cables. Designed to accommodate cross-sections between 50mm2 and 120mm2, this kit provides a robust method for extending or repairing electrical lines. It creates a secure, moisture-resistant seal that protects cable joints from environmental factors, ensuring consistent electrical performance and long-term safety in demanding infrastructure projects.

Advantages

This through joint kit offers exceptional mechanical strength and superior electrical insulation properties, which are essential for maintaining the integrity of power distribution systems. The heat-shrinkable technology allows for a tight, conforming fit around the cable conductors and outer sheath, effectively preventing the ingress of water, dust, and other contaminants. Its durable construction is resistant to chemical exposure and UV radiation, making it suitable for both indoor and outdoor installations where reliability is paramount.

Suitable for

• Connecting 4-core low-voltage power cables
• Repairing damaged cable sections in industrial environments
• Extending cable runs in underground or overhead installations
• Professional electrical grid maintenance and construction

When it may not be suitable

This product is not intended for use with medium or high-voltage cable systems. It is specifically designed for 4-core cables and may not be compatible with different core configurations or cable types outside the specified cross-section range of 50mm2 to 120mm2.

Key specifications

• Cable type: 4-core power cables
• Cross-section range: 50mm2 to 120mm2
• Technology: Heat-shrinkable
• Protection: Moisture sealing and mechanical protection

How to use

To install the joint, first prepare the cable ends by stripping the insulation according to the provided instructions. Connect the conductors using appropriate connectors, ensuring a secure mechanical and electrical bond. Position the heat-shrinkable components over the joint area, ensuring they are centered correctly. Apply uniform heat using a gas torch or a professional heat gun, starting from the center and moving outwards to allow air to escape and ensure the adhesive lining melts and seals properly against the cable jacket.

What to consider before purchase

• Verify the exact cross-section of your cables to ensure it falls within the 50-120mm2 range
• Ensure you have the necessary tools, such as a heat source and cable preparation equipment
• Confirm the cable core count matches the 4-core design of the kit

Usage recommendations

Always follow local electrical safety regulations and manufacturer guidelines during installation. Ensure the cable surface is clean and dry before applying heat to achieve an optimal seal.