NEMA 2 refers to a specific type of electrical enclosure defined by the National Electrical Manufacturers Association (NEMA). This enclosure is designed to protect electrical equipment from dust, light rain, and indirect splashing water. It is commonly used in indoor applications where a moderate level of protection is required. The NEMA 2 rating is part of a broader classification system that includes various other ratings, each indicating different levels of protection. Enclosures with this rating are typically made from materials like metal or plastic and are suitable for use in environments such as offices, schools, and light industrial settings.