Metal or plastic shell: The meter box and small power distribution unit shell is usually made of metal or plastic materials, such as steel plate or aluminum alloy or PC, to provide strength and protective properties to protect the internal electrical equipment from the external. Metal or plastic shell: The meter box and small power distribution unit shell is usually made of metal or plastic materials, such as steel plate or aluminum alloy or PC, to provide strength and protective properties to protect the internal electrical equipment from the external. Most drawings I receive from engineers have the same pattern: pages of detail for PLCs, sensors, and network gear. and one small rectangle labelled “meter box” with almost no notes. That tiny rectangle quietly decides a lot more than people expect. An electrical meter box is the protective. At E-abel, we specialize in metal electric meter boxes made of cold-rolled steel, stainless steel, and aluminum alloy. Our enclosures are engineered for durability and compliance with international standards (IEC/ANSI). Proper enclosures help. An electric meter box encloses and protects the electricity meter; this guide reviews types (single-/three-phase, surface vs recessed, plastic vs metal, indoor/outdoor), materials, installation and use cases.