The sealed nipples of the NPS series are connection elements used for cable entries in Ex enclosures with protection types d, e, or t. They can be used as connection elements and for cable passage between enclosures with the same protection type or enclosures with different protection types. The nipples can have one or two threaded ends with the same thread size or different thread sizes. They can be used with cables such as Radox, Ethernet 5E, 62.5/125 optical fibre, or RG223 coaxial cable.