Air disconnect switch, modular - vertical 100A RNMp III SA 24/4/100S 03-727

Modular air disconnect – reliable installation protection

The modular air disconnect RNMp III SA 24/4/100S is a device designed for the safe disconnection and connection of electrical circuits in overhead networks. The modular design allows for flexible adaptation to different configurations and mounting conditions. It is a key element of energy infrastructure, providing protection against overloads and short circuits, and also enabling safe maintenance work.

Construction and application

This disconnect, designated RNMp, is characterized by a vertical mounting method. It is a three-pole device designed to operate at a rated voltage of 24 kV. Manufactured by ALPAR Artur i Piotr Kowalscy Spółka Jawna, this disconnect meets safety and reliability requirements in harsh weather conditions. The modular construction facilitates its installation and servicing, and also allows for adaptation to the specific needs of a given facility. The design for surge arresters (the "S" designation in the symbol) further increases the level of installation protection.

Key features and benefits

• Modular design: Enables flexible mounting and easy adaptation to different pole configurations and terrain conditions.
• Vertical mounting: Optimal solution for installation on poles, ensuring stability and safety.
• Rated voltage 24 kV: Suitable for operation in medium-voltage electricity distribution networks.
• Three-pole design: Provides complete circuit isolation in the event of a failure or the need to perform service work.
• Design for surge arresters: Additional protection against the effects of lightning strikes and overvoltages in the network.
• Durable insulators: Available versions with porcelain, composite or silicone insulators – choosing the right material allows you to adapt the disconnect to specific environmental conditions. Silicone insulators are characterized by high resistance to dirt and moisture, which translates into a longer device life.
• Ease of operation: Manual control with NRA(u) or NEA motor drive facilitates quick and safe circuit switching.
• Solid construction: Ensures long-lasting and reliable operation even in harsh operating conditions.

Thanks to these features, the RNMp III SA 24/4/100S disconnect is an optimal solution for both professional installers and end-users looking for reliable protection of their electrical installations. It enables safe network operation and minimizes the risk of failures and downtime.