What type of enclosure is required for equipment subjected to prolonged submersion?

The correct answer is the type of enclosure designed to withstand prolonged submersion, which is classified as Type 6P. This enclosure type is specifically rated for submersion in water and offers a high level of protection against water ingress when submerged continuously.

Type 6P enclosures can be used in environments where equipment may be exposed to water hazards or a wet environment, such as when used in outdoor settings, near water bodies, or where washing or cleaning occurs frequently. These enclosures ensure that the internal components are protected from moisture, dirt, and direct contact with water, maintaining safe operation and prolonging the life of the electrical equipment inside.

Other types of enclosures, while they offer additional protections, do not meet the requirements for prolonged submersion. For instance, a Type 4X enclosure provides excellent resistance to corrosion and is suitable for being damp, but it is not rated for submersion. A Type 12 enclosure is intended for indoor use and mainly protects against dust, dirt, and non-corrosive liquids but does not provide adequate protection for being submerged in water. Lastly, a Type 3R enclosure protects against rain, sleet, and snow and is suitable for outdoor use, but it also does not