Overhead disconnect-earthing switch RUN III SA 24/4S 03-012

Overhead disconnect-ground switch RUN III SA 24/4S – reliable connection in overhead lines

This three-pole disconnect-ground switch is designed for connecting bare aluminum conductors in power lines. The design ensures simultaneous closing and opening of all poles, which streamlines work during maintenance and repairs. It is a solid solution for both professional installers and ensuring the safe operation of the network.

Design and application

The RUN III SA 24/4S switch is based on composite-silicone insulators, which guarantees high mechanical strength and resistance to weather conditions. The current path of each pole consists of main contacts made of copper flat bar, protected against corrosion by tinning (optional silver plating). This design ensures optimal conductivity and long-term connection reliability.

• Mounting: Designed for direct mounting on the pole bracket, simplifying installation and reducing costs.
• Terminals: Equipped with a movable joint with a current clamp for up to 95 mm² (optionally 120 mm²) – allows connection of a cable or conductor with the appropriate cross-section, preventing damage. An additional clamp on the fixed contact side also accepts conductors up to 95 (120) mm².
• Frame: Made of closed profiles and cold-formed sections, coated with a galvanized coating by immersion – provides protection against corrosion and long service life.
• Drive: Compatible with NRA(u) or NEA motorized drives, mounted with M10 screws.

Advantages and benefits

• Common drive: Simultaneous closing and opening of all poles speeds up service work.
• Durable materials: Composite-silicone insulators and galvanized frame provide resistance to harsh weather conditions and long-term operation.
• Safety: Movable joint in the current clamp protects the cable or conductor from mechanical damage.
• Optimal conductivity: Main contacts made of copper ensure low connection resistance.
• Easy installation: Adaptation for direct mounting on the pole bracket simplifies installation.