General
Colour	Black

The Helavia A0x20-C rubber grommets from Ses-Sterling are black-coloured, flexible cable protection components specifically developed for use in electrical and IT installations. They serve as a cable gland for secure and tight cable routing through holes in enclosures, wall penetrations or other components. The grommets provide mechanical protection for cable insulation and prevent uncontrolled movement or rubbing of the conductors. The designation A0x20-C refers to the specific design of the grommet, intended for a particular hole size.

Applications

The Helavia A0x20-C rubber grommets are used in industrial electrical installations, building automation, and IT infrastructure, where reliable and tight cable routing is required. They are particularly suitable for use in enclosed housings, such as enclosures, control cabinets or distribution boxes, where cables must pass through holes. The grommets are intended for indoor use and offer protection against mechanical stress, as well as a certain sealing effect against dust and moisture. The black colour allows for discreet integration into technical installations.

Functions and Equipment in Detail

The grommets are made of an elastic rubber material offering high flexibility and shape stability. The rubber grommet elastically adapts to the shape of the cable being routed and seals the hole tightly. The specific design A0x20-C is intended for a hole size of 20 mm, with precise fit ensured by the grommet's construction. The grommets are available in a pack of 100 pieces, making them suitable for series installations and larger projects. The weight of a single unit is 0.12 g, indicating a compact and lightweight design.

Technology Explained Simply

The operation of the rubber grommets is based on the principle of elastic deformation. During installation, the grommet is inserted into the hole, adapting to the hole's shape due to the elastic material. When a cable is routed through the grommet, it is compressed laterally and seals the hole tightly. This prevents dust, moisture or small particles from entering, which could impair electrical function. The grommets are not intended for use in explosive environments or under extreme environmental conditions. According to the manufacturer, the temperature resistance ranges from -30 °C to 90 °C, making them suitable for use in standard indoor installations.

Compatibility and Accessories

The Helavia A0x20-C grommets are compatible with holes of 20 mm diameter. They can be used with various cable types, provided the cable diameters fall within the elastic deformation limits of the grommet. The grommets are not specifically designed for use with PoE or other special cable types, but serve as a universal cable protection. There are no specific accessories recommended or offered by the manufacturer for these grommets. Installation is direct into the hole without additional mounting aids.

Installation and Mounting

Installation is performed by simply inserting the grommet into the designated hole. The grommet is positioned to fully fill the hole. Subsequently, the cable is routed through the grommet, which elastically conforms to the cable and creates a tight seal. No additional tools or mounting aids are required. The grommets are designed for single-use installation and are not intended for repeated disassembly and reuse.

Operational Advantages

The Helavia A0x20-C grommets offer a simple, reliable, and cost-efficient solution for cable routing in enclosed installations. The elastic construction ensures tight sealing, keeping dust and moisture out. The black colour allows for discreet integration into technical systems. The pack of 100 pieces is suitable for larger projects and reduces installation time. The grommets are easy to handle and require no special installation equipment. The temperature resistance from -30 °C to 90 °C makes them suitable for use in a wide range of indoor installations.