MS box refers to a metal enclosure box made of Mild Steel (MS). MS boxes are commonly used for electrical installations and are known for their strength and durability. MS boxes come in various sizes and shapes, and are available with different numbers of knockouts or openings for wiring. They may also feature internal or external mounting options, depending on the specific application. MS boxes can be used for a range of electrical installations, including switch and outlet boxes, junction boxes, and electrical service panels. They are resistant to moisture, corrosion, and damage, making them suitable for use in outdoor and harsh environments.