Overhead disconnect-earthing switch RUNM III SA 24/4o 03-068

Aerial disconnect-earthing switch – reliable protection for power lines

The RUNM III SA 24/4o aerial disconnect-earthing switch is a key element of power infrastructure, designed for the safe connection and disconnection of overhead lines and grounding to ensure safety during maintenance work. The device is characterized by high reliability and durability, making it an ideal solution for both professional installers and network operators.

Design and application

The design of the disconnect switch allows for the connection of aluminum conductors with or without insulation with a cross-section from 16 to 150 mm², and in special versions even up to 185 mm². It has a flexible contact that minimizes the effects of bending the conductor on the moving pole, which translates into a longer service life and connection stability. The possibility of equipping with current transformers and combined sensors increases the functionality of the device, enabling the detection of short circuits and the direction of current flow. The disconnect switch is compatible with manual, rotary and sliding drives, as well as remote drives, providing flexibility in various network configurations.

Advantages and benefits

• High switching current (100A): allows switching operations without the need to disconnect the entire line string – saving time and minimizing downtime.
• Safe insulation gap: ensures visible and reliable separation of circuits during maintenance work.
• Flexible contact: compensates for conductor bending, increasing connection durability and reducing the risk of damage.
• Expandability: option to mount current transformers and combined sensors for advanced network monitoring.
• Compliance with standards: meets the requirements of PN-EN 62271-103, PN-EN 62271-1, PN-EN 62271-102 and PN-EN ISO 1461 – guarantee of safety and quality.
• Certificate of conformity: confirms compliance with applicable standards and regulations.
• Wide range of applications: ideal for manual or remote control in MV networks.

The RUNM III SA 24/4o disconnect switch is an investment in the safety and reliability of power infrastructure. Its solid construction and adaptability to various working conditions make it an optimal solution for demanding applications.