Surface mounted Electric Meter Box made of thick GRP, & incorporating very strong hinges, locking mechanism & removable door. Wide 400mm x High 500mm x Deep 245mm . Included: Built in metal ring to install an optional padlock. Electrical enclosure sizes are not universal, but most manufacturers follow common size families. This guide explains typical wall-mount and floor-standing dimensions, how to read catalog sizes, and how to choose the right enclosure size for your layout. ESTIMATED SHIPPING CHARGES STANDARD – 2 to 5. Within electrical installations regulated by NEC and UL standards, the terminology surrounding junction boxes extends well beyond simple measurements of length and width. Choosing the proper enclosure requires fluency in the language of gangs, physical footprint, and—most importantly— internal. Using the back plate for reference, mark the fixing holes on the wall, box must be level. Drill and plug the wall • Due to the composition of GRP, surface blemishes including light scratches and pin holes should be anticipated on the meter box. These are inherent in the manufacturing process and. The Surface Mounted 3-Phase National Grid Specification Electricity Meter Box is designed to provide a durable, weather-resistant and fire retardant housing for 3-Phase electricity meters, ensuring reliable performance in various environments. Made from glass reinforced plastic (GRP) to BS 746 Part.