Manual drive for isolator without earthing, under-line mounting, rotary motion NRA BSW-12 w.II 03-571

Manual drive for disconnectors – reliability and precision in operation

This manual drive, designed for disconnectors without earthing with under-line mounting and rotary motion, is a key element ensuring safe and efficient operation of electrical equipment. The NRA BSW-12 w.II model is compatible with various types of disconnectors, offering versatility for both professional installers and end users. Its solid construction guarantees long-lasting and trouble-free operation in demanding environmental conditions.

Construction and mounting – simplicity and functionality

The manual drive is designed to work with ON (OUN) type disconnectors and their variants (ONp, OUNp, ONM, OUNM, ONMp, OUNMp) III SA 24/4. Mounting is done with two M10 screws, ensuring quick and secure connection to the disconnector drive mechanism. A common drive for all poles guarantees simultaneous closing and opening, which increases safety and efficiency of operations. The drive design allows its use in both horizontal and vertical positions.

Application and benefits – for the installer and user

The NRA BSW-12 w.II manual drive finds wide application in overhead lines, enabling safe disconnection and connection of electrical circuits. Its precise operation minimizes the risk of equipment damage and ensures the reliability of the entire system. For installers, this means easy installation and intuitive operation, and for end users – confidence in operation and long-term use. The ability to control both with a manual drive of type NRA(u) and a motor NEA provides flexibility in choosing the operating method. In addition, the modular construction of disconnectors allows for independent setting of the poles in relation to each other, which facilitates adaptation to specific installation conditions.