Silicone Rubber Fiberglass Sleeve for Low-Voltage Electrical Equipment

When protecting wires and electrical connections inside low-voltage equipment, insulation materials need to provide reliable electrical protection while remaining easy to install and cost-effective. A silicone rubber fiberglass sleeve is a practical solution for many of these applications.

VOLSUN NS-RUB-1.2KV Silicone Rubber Fiberglass Sleeve is designed for insulation protection in low-voltage electrical equipment, including household appliances, control cabinets, instruments, and low-voltage power supply devices. It combines a flexible fiberglass braided layer with a silicone rubber coating to provide both electrical insulation and mechanical protection.

What Is a Silicone Rubber Fiberglass Sleeve?

The NS-RUB-1.2KV series is manufactured by coating an alkali-free fiberglass braided tube with silicone rubber and then curing the coating. This composite structure gives the sleeve good toughness while maintaining the insulation properties required for low-voltage electrical applications.

With a voltage withstand rating of 1.2kV, the sleeve is intended for conventional low-voltage applications where reliable insulation is required but extremely high voltage resistance is not necessary. The average breakdown voltage is 1.2kV, tested according to GB/T 7113.2-2014.

Reliable Insulation with Flexible Installation

Electrical insulation materials often need to withstand bending and pulling during installation. The fiberglass braided structure combined with the silicone rubber coating provides good flexibility and toughness, helping the sleeve maintain its protective function during wire harness installation.

The NS-RUB-1.2KV series is also designed with controlled inner diameter tolerances, allowing wires and harnesses to be threaded through the sleeve smoothly. This makes it suitable for applications where installation efficiency is important.

Applications in Low-Voltage Electrical Equipment

Where can silicone rubber fiberglass sleeves be used?

Typical applications include insulation protection for:

· Internal lead wires in household appliances

· Signal wire harnesses in control cabinets

· Internal wiring of instruments and meters

· Cables in low-voltage power supply equipment

For these applications, the sleeve provides an economical insulation solution when high-voltage performance is not required, but reliable insulation protection and convenient installation are important.

Available Sizes for Different Wire Harnesses

The NS-RUB-1.2KV silicone rubber fiberglass sleeve is available in a wide range of inner diameters, from Φ1.0mm and Φ1.5mm through Φ16.0mm. Wall thickness varies according to the sleeve size. For example, the wall thickness is approximately 0.31±0.05mm for Φ1.0mm, 0.36±0.05mm for Φ3.0mm, and 0.40±0.05mm for Φ5.0mm.

Standard packaging ranges from 50 to 200 meters per piece, depending on the sleeve specification. Customization is available according to customer requirements.

A Practical Insulation Solution for Low-Voltage Applications

Choosing the right wire insulation sleeve depends on voltage requirements, wire size, installation conditions, and application needs. With its 1.2kV voltage withstand rating, flexible composite structure, wide size range, and easy installation, the VOLSUN NS-RUB-1.2KV silicone rubber fiberglass sleeve provides a practical solution for insulation protection in low-voltage electrical equipment.

If you are looking for a silicone rubber fiberglass sleeve for wire harnesses, control cabinets, household appliances, or other low-voltage electrical applications, VOLSUN can provide different sizes and customization options to meet your application requirements.