Weidmueller VP M16 EX SI 7J

VP M16 EX SI 7J likely refers to an explosion-proof (EX) cable gland, conduit fitting, or sealing plug with an M16 metric thread size. "SI" might indicate a silicone sealing material, and "7J" could refer to a specific sealing or impact resistance rating. This type of component is commonly used in hazardous environments, such as photovoltaic (PV) systems, industrial control panels, or electrical installations requiring high safety and durability standards. If you need specific details, please provide more context on its application.