Description:

Made of high-quality silicone rubber, it automatically shrinks when the inner core is removed — forming a tight, waterproof seal around each cable branch.
No heat, no adhesive, and no complicated installation steps — just a fast, reliable way to protect your electrical and communication systems.

Features

• Self-shrinking installation — no heat gun or flame required. The built-in core simply unwinds, allowing the silicone body to contract naturally around the cable, ensuring even pressure and a uniform seal.

• Superior waterproof performance — forms a seamless barrier that keeps out moisture and dust, preventing corrosion and electrical leakage at critical cable joints.

• Excellent weather and UV resistance — the silicone material maintains elasticity even under extreme sunlight, rain, or temperature changes, making it ideal for outdoor and long-term use.

• High insulation reliability — ensures consistent electrical performance under voltage stress, minimizing risk of short circuits.

• Easy and time-saving — one-person installation in minutes, with no need for special tools or training.

• Durable and low-maintenance — long service life reduces replacement costs and downtime for maintenance crews.

Application

• Power cable branch sealing — used at the junctions of multi-core cables to provide insulation and waterproofing in power distribution systems.

• Telecommunication and signal cables — prevents signal loss and protects cable ends in outdoor or base station installations.

• Industrial and outdoor electrical boxes — ensures reliable sealing against rain, dust, and mechanical stress.

• Antenna, lighting, and control cables — offers strong environmental protection in rooftop, tunnel, and roadside setups.

• Marine and underground cabling — suitable for high-humidity or buried environments where traditional heat-shrink tubes fail due to poor sealing.

  Voltage	Model	Suitable cable section area(mm²)	Cable core insulation OD(mm²)
  For 12/20KV 3cores indoor/outdoor terminators (N/W) and middle connector(J)	LSN/W/J-3/1	35~70	19.3~22.1
  	LSN/W/J-3/2	95~185	23.7~28.4
  	LSN/W/J-3/3	240~400	30.7~35.6
  	LSN/W/J-3/4	500~800