General
Degree of protection	Internal gearing
Material	PA66
Construction	fully made of plastic
Processing	installation by hand or with processing tool
Application	bundling and securing of cables, wires and hoses
Colour	Black
Bandwidth	4,6 mm

The UB250C-B-PA66-BK-C1 cable tie from HellermannTyton is a plastic fastening element designed for bundling and securing cables, wires, and hoses in technical installations. It features an internal toothed mechanism that ensures secure locking, and is fully made of plastic, making it suitable for various applications in electrical and IT technology. Installation can be performed either manually or using a special processing tool, enabling efficient and precise mounting.

Applications
This cable tie is designed for indoor use and is particularly suitable for structured cable bundle fixation in enclosures, server rooms, machine construction applications, or during the installation of data and power lines. The internal toothed mechanism ensures that the fastening knot cannot be released after locking, providing a permanent and secure fixation. The material selection of PA66 (polyamide 66) offers good mechanical strength and resistance to environmental influences such as moisture and temperature fluctuations.

Functions and Features in Detail
The cable tie features an internal toothed mechanism that engages during locking to absorb the tensile force of the strap, preventing the fastening knot from loosening. The entire construction is made of plastic, making it lightweight, corrosion-resistant, and electrically insulating. Fastening is achieved by inserting the strap into the toothed mechanism, where tension is maintained by friction between the strap and the teeth. Processing is possible both manually and with a tool, increasing flexibility during installation.

Technical Explanation
The internal toothed mechanism is a central feature of the cable tie. Located inside the head, it engages when the strap is pulled through, maintaining tension. This principle enables a secure and permanent fastening without requiring additional tools for removal. The PA66 material offers high strength and heat resistance, making the cable tie suitable for technical applications with demanding requirements. The fully plastic construction ensures high insulation performance, making it safe for electrical installations.

Compatibility and Accessories
Various tools are available for processing this cable tie, enabling quick and precise installation. These include the processing tool MK20 BLAU (item number 110-20006), the processing tool EVO7iSP (item number 110-77002), the tool MK10-SB (item number 110-10001), and the processing tool EVO7i (item number 110-77001). These tools are specifically designed for processing cable ties with internal toothed mechanisms and enable efficient installation, especially in large projects or tight installation conditions.

Installation and Mounting
Installation is performed by looping the cable tie around the cable bundle to be secured and pulling the strap through the head. For manual installation, the strap is pulled by hand until it locks into the toothed mechanism. When using a tool, the strap is pulled through the tool, which automatically engages the locking mechanism. The tools assist in force transmission and enable uniform tension, improving the quality of the fastening.

Operational Advantages
The cable tie provides a simple and reliable fastening solution, distinguished by high mechanical strength and electrical insulation. The internal toothed mechanism ensures permanent locking that cannot be released, enhancing installation safety. Tool-assisted processing enables fast and precise installation, especially in large projects. The PA66 material selection ensures high resistance to mechanical stress and environmental influences, extending the service life of the cable tie.