Below is a list of Electrical Cabinets manufacturers from San Luis Obispo, California. Electrical cabinets are boxes that protect electronic assemblies from dust, water and accidental contact. Also known as electrical enclosures, these cabinets house electrical conduits, connections and switches as well as other integral components of a circuit. Electrical cabinets are rectangular boxes that range from about half a foot to over 5 feet tall in varying depths and widths.