Plastic Modular Holder is a type of electrical enclosure used to house and protect electrical devices and components such as switches, sockets, circuit breakers, and other similar devices. It is made of plastic and consists of a base with a snap-on cover. The modular design of the holder allows for flexibility in the arrangement of the devices and components that it houses. The base of the Plastic Modular Holder is designed with a series of slots and holes that allow for the installation of various modules.