General
Colour	Light grey
RAL colour	7035
Bore Ø	20 mm
Function	dust- and waterproof sealing
Compatibility	V-TEC cable glands

The 107VS VM 20 PA closure plug from OBO Bettermann is a specially developed component for secure and tight sealing of installed but not yet used V-TEC cable glands. It is offered in light grey, corresponding to RAL colour 7035, and serves to prevent dust and water ingress into the cable gland until a cable is inserted. The component is used in electrical installations, particularly when mounting cable glands in environments requiring a high degree of protection against external influences.

Applications
This closure plug is primarily intended for use in industrial and commercial electrical installations where cable glands remain temporarily open, for example during planning or installation phases. It is fitted to V-TEC cable glands to maintain the integrity of the protection system until final cabling is completed. The light grey colour allows for visual coordination with other components in the system, especially when the cable glands are also finished in RAL 7035.

Functions and Features in Detail
The plug is made of polyamide (PA), a thermoplastic material known for its high mechanical strength, heat resistance, and chemical resistance. It is specifically designed for a 20 mm bore, ensuring a precise fit on V-TEC cable glands with the corresponding diameter. The shape provides a tight seal that effectively prevents dust and water ingress. Installation requires no additional tools — the plug is simply inserted into the gland and holds securely by form-fit.

Technology Explained Simply
The design of the closure plug is based on a form-fit principle, where the geometric fit between plug and gland enables a tight seal. The polyamide (PA) material provides sufficient elasticity to ensure a secure fit without damaging the gland structure. The RAL 7035 colour is a standard in the electrical industry and is commonly used for components visible in industrial environments. The protective function is purely mechanical and does not require additional seals or adhesives.

Compatibility and Accessories
The 107VS VM 20 PA closure plug is specifically designed for V-TEC cable glands manufactured by OBO Bettermann. It is not intended for use with other cable gland systems, as the fit and geometry are tailored to the V-TEC system. Use with other systems may result in an inadequate seal or damage to the gland. There are no specific accessories required to be used with this plug — it is used as a single component.

Installation and Mounting
Mounting is achieved by simply inserting the plug into the open bore of the V-TEC cable gland. No tools are required, as the plug holds securely by form-fit. Removal is also tool-free, by gently pulling the plug out. Installation is quick and does not require additional measures such as sealing compounds or adhesives. The plug is used prior to final cabling to protect the gland from environmental influences.

Operational Advantages
Using the closure plug extends the service life of the cable gland by preventing dust and moisture, which can lead to corrosion or contamination. The simple handling reduces installation time and minimizes error sources. The tight seal ensures that the protective function of the gland remains intact during the interim phase, which is particularly beneficial for installations in damp or dusty environments. The plug is compatible with standard installation practices in the electrical trade.