General
Colour	Black

The DGC-TPE 21/E1 membrane grommets from Ses-Sterling are specifically designed for use in electrical and installation technology. These rubber grommets made of thermoplastic elastomer (TPE) serve as conduit grommets for the safe and tight routing of cables and lines through components, such as enclosures, wall penetrations, or machine cabinets. The grommets are available in the colour black and provide a flexible yet stable seal that withstands mechanical stress and environmental influences. They are suitable for use in industrial plants, machine building, and electrical installations where reliable cable routing with integrated protection is required.

Applications

The DGC-TPE 21/E1 membrane grommets are suitable for applications where cables or lines must be routed through a wall or enclosure opening without compromising the seal. They are frequently used in the manufacturing industry, automation technology, and electrical installations where mechanical and electrical insulation, as well as protection against dust and moisture, are required. The grommets are suitable for indoor and outdoor use, with the TPE material providing high flexibility and resistance to temperature fluctuations.

Functions and Features in Detail

The membrane grommets are made of an elastic TPE material that exhibits high elongation and recovery force. This enables a secure, yet not excessive, clamping of the cable, ensuring mechanical protection against tensile and torsional forces. The grommets are cross-shaped, allowing for even distribution of pressure on the cable and preventing shifting or twisting of the line. The black colour is not only visually uniform but also resistant to UV radiation and ageing, extending the service life in outdoor environments.

Technology Explained Simply

The grommets operate on the principle of crimping nipple technology, where the cable is routed through an elastic membrane that wraps around the cable, forming a tight yet flexible seal. The TPE (Thermoplastic Elastomer) material combines the properties of rubber and plastic: it is flexible, resistant to mechanical stress and chemical influences, and can be used at temperatures from approximately -40 °C to +100 °C. The cross-shaped design ensures that the cable is held securely not only axially but also radially, which is particularly important in moving or vibrating installations.

Compatibility and Accessories

The DGC-TPE 21/E1 membrane grommets are designed for cables with a diameter of approximately 21 mm, with the exact fit ensured by the elastic stretchability of the TPE material. They are compatible with various enclosures and wall penetrations that feature a corresponding hole or opening. The grommets can be used in combination with other protective and sealing elements to create an additional protective layer against dust, moisture, or chemical influences. Their use in conjunction with cable protection conduits or heat-shrink tubing is also possible to enhance mechanical protection.

Installation and Mounting

Installation is carried out by simply inserting the grommet into the designated opening and then routing the cable through the membrane. The elastic structure ensures that the cable is securely held without causing excessive deformation or damage. The grommets are designed for single-use installation and should not be reused, as the elasticity diminishes with repeated use. The packaging contains 100 pieces, suitable for larger installations or series mounting.

Operational Advantages

The DGC-TPE 21/E1 membrane grommets provide reliable, tight, and mechanically stable cable routing. The TPE material quality ensures a long service life and resistance to environmental influences. The cross-shaped design ensures even load distribution, extending the life of both the cable and the grommet. The black-coloured version is visually uniform and resistant to UV radiation, making it suitable for outdoor use. The grommets are easy to install and require no additional tools or mounting aids.