The Nautilus is an IP68 rated, Ex e enclosure manufactured from marine grade 316 stainless steel. This terminal enclosure is designed to withstand extended periods of submersion at depths of over one hundred metres. One specific application for this enclosure is to ensure the protection of essential electrical connections within an FPSO turret system. Two Nautilus units are on an FPSO operating in the cyclonic region off the coast off Western Australia.

When severe storms are expected, the FPSO is de-mounted from its umbilical system. The vessel can then be at sea for several weeks with the turret area fully submerged. In this application, the enclosures were required to maintain their IP68 rating for the whole period. The Nautilus enclosure has been independently tested to maintain ingress protection at fifty metres for two weeks. Further testing confirmed one hundred metres of submersion protection for a period of five days.

The Nautilus is fully ATEX and IECEx certified for use in Zone 1 hazardous areas and can be manufactured to any size as long as each dimension falls within the range of smallest to largest size listed on the product datasheet. This affords the range a unique flexibility, allowing customers the ability to employ cost-effective, custom sized enclosures in their application.