Safety adapter for Ø 4 mm socket. It can be used to ensure compliance with the standard 4 mm socket. It is fitted without the 4 mm socket and then fixed in position by tightening a grub screw (using a hexagonal socket wrench), causing the Ø 4 mm plug to expand. For use in education, research and development etc.
Note
When installing the adapter, the component to be connected must be powered off.
