Both systems are radial, and voltages and power carrying capabilities are similar. Figure 1 compares the two systems. For both forms, hardware is much the same: conductors, cables, insulators, surge arresters, regulators, and transformers are very similar. The main differences. Wall Box European, British 60mm (60. Accepts 86mmX86mm size outlets, INTERNATIONAL CONFIGURATIONS, INC. (47 mm DEEP), "EARTH" TERMINAL, ADJUSTABLE MOUNTING LUG (LEVELS DEVICE & WALL PLATE), 20mm and 25mm KNOCKOUTS. * Accepts 86mmX86mm size Sockets, Outlets, Switches, Devices. American, European, and Chinese box-type substations represent distinctly different philosophies in the realm of power distribution. 78 Each - Sold in 10 Pack), 35mm deep. Flush Mounts Single Outlets & Switches in Sheet Rock or 1/4"-7/8" Thick Panels. 78 Each -. Here you can download the program for the configuration of our electrical cabinets. Used to house electrical or electronic switchgear, control gear and equipment. Wall boxes are, surprisingly, one of the components in an electrical installation that are the most standardised. Generally speaking, they can be grouped into either European-based designs (round or square) or American-based ones (rectangular), although there are exceptions, such as in Denmark and.