The box can accommodate up to 16 17. 5mm elements, surface or wall mounting. Surface-mounted socket Box, 330x330x155mm, made of halogen-free, UV-stable ABS, with IP65 protection class. This industrial surface box can accommodate CETAC, Schuko or similar sockets as well as protection elements. Check each product page for other buying options. Need help?Manufactured in the UK, the RubberBox RUB1606 is a versatile single-phase distribution unit and designed for applications that require multiple Powercon connections alongside a 16A feed. TPN MCB Box- Contain 16 mcb's 16 Way SPN MCB Box, Double Door MCB Distribution Board. Often, the client or buyer's decision on the type is based on the final application.