Overhead earth disconnection switch RUNp III SA 24/4 03-036

Product features

• Reliable connection in medium voltage networks

The RUNp III SA 24/4 air disconnect switch-earthing device is a key element of power infrastructure, designed for safe and efficient connection and disconnection of conductors in medium voltage overhead lines. The device is widely used both with surge arresters and with branches from non-insulated aluminum conductors to insulated AsXSn type conductors with a cross-section from 16 to 120 mm². Thanks to the possibility of AL-Cu connections, it provides flexibility in the selection of conductive materials.

Construction and design features

The disconnect switch is based on a solid housing made of plastic, resistant to UV radiation and other atmospheric factors, which guarantees long-lasting and reliable operation in harsh outdoor conditions. The piercing clamps are made of a tin-plated aluminum alloy profile, and the class 8.8 clamping screw is hot-dip galvanized – this combination provides excellent conductive properties and corrosion resistance. The contact points filled with contact paste minimize electrical resistance and improve conductivity. Additionally, equipped with a tear-off nut, the clamp provides additional protection against accidental disconnection.

Application and benefits for installers and users

The RUNp III SA 24/4 disconnect switch is an ideal solution for professionals involved in the construction and maintenance of power networks. It enables quick and safe installation of branches and connection of surge arresters. Thanks to its design, the device can be mounted both vertically and horizontally, which increases installation flexibility. For end users, this means reliable network operation and effective protection against overvoltage effects. Solid construction and high-quality materials guarantee long device life and minimize costs associated with its replacement or repair. The use of silicone insulators (depending on the version) further increases resistance to weather conditions and ensures stable operation for a long time.

The disconnect switch meets the requirements of PN-EN 62271-103:2011 and PN-EN 61140:2005/A1, which confirms its safety and compliance with applicable standards. The device has a certificate of conformity from an accredited unit.