Air vent valve ONp III SA 24/4K 03-037

Air disconnect switch – reliable protection for power lines

This ONp III SA 24/4K air disconnect switch is a key element of power infrastructure, designed for the safe disconnection and grounding of overhead lines. The device's design allows for the mounting of surge arresters on insulated conductors using standard clamp-type connectors, which significantly simplifies installation and maintenance. This is particularly important when modernizing existing networks and building new connections.

Construction and application

The disconnect switch consists of several key components ensuring its reliable operation: a rubber cover protecting the threaded connection, a hot-dip galvanized steel sleeve with an internal M8 thread, and an AsXSn 1×25 conductor with a length of 20 cm or 35 cm. This construction guarantees durability and corrosion resistance, even in harsh weather conditions. The device is adapted for direct mounting on the pole bracket, simplifying the installation process.

• Application: The disconnect switch is designed to operate in overhead lines with a voltage of 24 kV and a current of 400 A.
• Surge arrester mounting: Allows for easy mounting of a surge arrester, increasing installation safety.
• Durable construction: The hot-dip galvanized steel sleeve provides corrosion resistance and long-term operation.
• Flexibility: The availability of the AsXSn conductor in two lengths (20 cm and 35 cm) allows the disconnect switch to be adapted to specific mounting conditions.

Advantages for professionals and end-users

This disconnect switch is not only a protective element, but also a practical solution for installers and power grid operators. Its modular design and the possibility of using different types of insulators (porcelain, composite or silicone) ensure flexibility and adaptation to individual needs. This makes it possible to configure an optimal solution for each project.

• Simplified installation: Adaptation for mounting on the pole bracket and the ability to easily connect a surge arrester significantly reduce installation time.
• Durability and reliability: The use of high-quality materials guarantees long-term operation without the need for frequent repairs and replacements.
• Versatility: The ability to choose insulators allows the disconnect switch to be adapted to different environmental conditions and technical requirements.
• Safety: Provides effective protection of the overhead line against overloads and short circuits, minimizing the risk of failures and interruptions in power supply.