One of the important components in building electrical wiring systems is the switch box, which is responsible for protecting connections and providing a mounting location for switches and sockets. The 7×7 switch box, as a standard size, provides suitable space for wire passage and the installation of electrical equipment. Using this type of switch box brings greater organization to the wiring and increases the safety of electrical installations, and compared to round switch boxes, it has been more widely approved by the engineering community. Purchasing a high-quality 7×7 switch box and using it in various projects is considered the key to success in creating a safe and error-free electrical system.
The holes provided in the 7×7 switch box are intended for the entry of wire strands into the box. In various structures, these wires are routed through different types of electrical conduits along various paths. As a standard, it is necessary for the designated paths for conduit installation to lead towards the switch boxes so that through this, branches can be established for the installation and connection of switches and sockets.
As you can see in the images, the 7×7 switch box has equal square sides. On each side, two holes are provided, which can be identical to each other. However, usually on two opposite sides, there are two holes of size PG13.5 or M20. On the other two opposite sides, two larger holes of size PG16 are provided.
In addition, there are three separate holes in the base of the switch box, whose size can be PG13.5 or other custom sizes. If, for any reason and according to the project’s limitations, you request specific types from manufacturing companies, you can also have these products on a custom basis.
The type of sheet used in the design and manufacture of the 7×7 switch box is pre-galvanized. This valuable advantage provides conditions for the boxes not to suffer from discoloration, rust, or corrosion in humid environments. In addition, they have good resistance to impact and the application of force up to a certain limit, so the internal connections of the box will not be damaged.
The thickness of the 7×7 switch box is usually 0.7, 0.9, and in some cases, one millimeter. The high density of the metal and the plating process on it significantly affect the metal’s resistance. Given that the 7×7 switch box and its other sizes are usually installed at the heights of structures, the probability of various stresses such as impact or force application occurring is very low.
However, the damaging factor that always exists in various environments is moisture, which can never be prevented or eliminated. Therefore, the most important advantage of the boxes can be noted as the plated or galvanized body. Hence, you can confidently use these boxes in industrial environments with high humidity.
The 7×7 switch box and other galvanized boxes are used for the installation and connection of various types of switches and sockets. Given their numerous advantages, they are employed in many construction projects. The main application of the galvanized switch box is the installation of various types of smart switches and sockets. As you know, setting up complex systems requires extraordinarily high physical protection. Consequently, the best boxes or enclosures that can be used for such systems are metal and galvanized types.
In addition to the 7×7 switch box, there are other sizes of this product, which are referred to as double or triple switch boxes. Their design type is such that two or three compartments of equal size are placed alongside each other. The only difference that can be considered for these boxes is that the number of holes and cavities in the body is greater compared to single-gang types.
However, in terms of material type and body thickness, they are usually identical. In many projects where it is necessary to create relatively more complex systems, using these boxes will be extremely useful. Furthermore, some types of them have greater depth, which are called MK deep switch boxes. Given the high depth of these parts, a much larger volume of connections can be created inside these metal enclosures.
Rafi Industrial Group is a manufacturer of cable support and protection equipment as well as a wide range of steel conduits and electrical conduit fittings such as Spit clamps, clevis hangers, C-channel rails, couplings, brass bushings, pull elbows, pull tees, and other connecting parts for electrical cabling networks.
Of course, the mentioned items are only a selection of this group’s products. You can become familiar with all the parts by visiting the products menu section. To receive information related to product prices as well as obtain specialized consultation, please contact our experts.
