Manual drive for isolator without earthing, overline mounting, rotary motion NRA E-15 w.I 03-512

Manual drive for overhead line connectors – reliability and ease of operation

This manual drive, designed for connectors without an earthing conductor, is a key element in overhead line switching systems. It is used to manually control the connector, ensuring safe and efficient operations. Mounting above the line and the rotational movement of the structure guarantee convenience and accessibility during maintenance and repairs. It is an ideal solution for both professional installers and end-users responsible for maintaining energy infrastructure.

Design and application

The NRA E-15 w.I manual drive is designed to work with ALPAR ON (OUN) III SA 24/4 overhead line connectors. Mounting is done with two M10 screws, ensuring a stable connection to the connector's drive mechanism. This allows for the simultaneous closing and opening of all connector poles, significantly speeding up the switching process. This drive is used in overhead lines, both in horizontal and vertical configurations, as well as in branch lines. Thanks to its design, it enables safe operation and minimizes the risk of damage during operation.

Advantages and benefits

• Simple installation: Quick and easy installation with standard M10 screws – saves time and installation costs.
• Pole synchronization: Simultaneous closing and opening of all poles – increases safety and efficiency of switching operations.
• Versatility: Compatible with various overhead line configurations (horizontal, vertical, branch) – application flexibility.
• Durability: Solid construction ensures long-lasting and reliable operation in various weather conditions – minimizes downtime and maintenance costs.
• Safety: Manual drive eliminates the risk of uncontrolled switching operations – increased work safety.
• Easy maintenance: Simple construction facilitates inspections and maintenance – reduces operating costs.
• Application with wires of different cross-sections: Possibility of connecting a cable or wire with a cross-section of up to 95 mm², a version for 120 mm² is also available - wide range of applications.