An electrical enclosure is a cabinet for electrical equipment to protect the contents from the environment, mount switches, knobs and displays and to prevent electrical shock. An electrical component is any component in the generation, transmission, distribution, or consumption of electric power. ... Electrical switches. ... A dial is a generally a flat surface, circular or rectangular, with numbers or similar markings on it, used for displaying the setting or output of a timepiece, radio or measuring instrument. ... A display device is a device for visual or tactile presentation of images (including text) acquired, stored, or transmitted in various forms. ... Sign warning of possible electric shock hazard An electric shock may occur upon contact with electricity. ...

The National Electrical Manufacturers Association publishes NEMA standards for the performance of various classes of electrical enclosures. The standards cover corrosion resistance, ability to protect from rain and submersion, etc.
Electrical enclosures are made from plastic, steel, aluminum, wood, and in the past Bakelite was used.
An example of an electrical enclosure is the metal box of a Radio receiver. The National Electrical Manufacturers Association or NEMA is a U.S.-based association, which was created on September 1, 1926, when the Associated Manufacturers of Electrical Supplies and the Electric Power Club merged. ... Plastic is a term that covers a range of synthetic or semisynthetic polymerization products. ... The old steel cable of a colliery winding tower Steel is a metal alloy whose major component is iron, with carbon being the primary alloying material. ... Aluminum is a soft and lightweight metal with a dull silvery appearance, due to a thin layer of oxidation that forms quickly when it is exposed to air. ... A tree trunk as found at the Veluwe, The Netherlands Wood derives from woody plants, notably trees but also shrubs. ... Bakelite distributor rotor Bakelite is a brand named material based on the thermosetting phenol formaldehyde resin polyoxybenzylmethylenglycolanhydride, developed in 1907-1909 by Dr. Leo Baekeland. ... For the device which is a tuner (radio) and a amplifier and/or loudspeaker, see receiver (home stereo). ...

External links

• NEMA website.