General
Colour	Black

The Helavia DA 300/350/40 black from Ses-Sterling are cable glands made of polychloroprene rubber, specifically designed for use in electrical and installation technology. These rubber glands provide secure and tight guidance of cables and wires through holes in metal or plastic components, for example in enclosures, housings or machines. The glands are black and enable a clean, mechanically robust and electrically insulating cable passage. The designation DA 300/350/40 refers to the specific shape and dimensions of the glands, designed for precise mounting in holes with a diameter of 300 to 350 mm, with the gland tip having a diameter of 40 mm.

Applications
These cable glands are used in industrial and commercial installations where mechanical protection for cables and wires is required. They are particularly suitable for use in enclosures, control cabinets, machine construction and other areas where cables must be routed through holes. The use of polychloroprene rubber ensures high mechanical strength, resistance to aging and chemical influences, as well as good elasticity, enabling a tight seal even under varying temperature and load conditions.

Functions and Equipment in Detail
The glands are designed as crimping nipples, meaning they create a firm, tight connection between the cable and the hole through elastic deformation during installation. The shape of the glands is designed so that they compress when inserted into the hole and thus tightly enclose the cable. This prevents the wires from slipping and protects them from mechanical stresses such as friction, tension or pressure. The black color is not only aesthetic but also functional, as it makes the glands clearly visible in technical environments and is UV-resistant.

Technology Explained Simply
The material technology used, polychloroprene rubber, is a synthetic elastomer known for its high resistance to weathering, oil, fats and chemical solvents. It offers excellent electrical insulation and is temperature-resistant, making it suitable for use in industrial environments. The glands are dimensioned to be mounted in holes with a diameter of 300 to 350 mm, with the actual cable passage tip having a diameter of 40 mm. This allows flexible adaptation to different cable diameters within the specified range.

Compatibility and Accessories
The Helavia DA 300/350/40 black are designed as individual components for cable passage and can be combined with other products from the HELAVIA product group, particularly with other shaped parts made of polychloroprene rubber. They are suitable for use in metal and plastic housings, provided the hole diameters are 300 to 350 mm. The glands are not connected to additional mounting aids or fastening elements; they are inserted directly into the hole and secured by their elastic shape.

Installation and Mounting
Installation is carried out by simply inserting the gland tip into the hole. The elastic structure ensures that the glands compress during insertion and then return to their original shape, securely holding the cable. No additional fastening or tools are required. The glands are designed for single-use mounting and should not be reused, as the elastic shape is impaired by repeated insertion and removal.

Operational Advantages
The use of these rubber glands ensures reliable mechanical protection for cables and wires. The tight seal prevents dust, moisture or other particles from entering, extending the service life of the installed wires. The high resistance of the material to chemical influences and mechanical stresses ensures a long service life even in demanding environments. The glands are available in a package of 50 pieces, making them economically attractive for larger installations.