The basic characteristics of industrial plugs are high safety, water resistance and shock resistance, which have an important impact on the home building materials market. A switch is arranged between the weatherproof socket resistor and the electromagnetic switch, the fuse and the electromagnetic switch are connected with a power line, the power line is provided with a normally open switch of the electromagnetic switch, and the normally open switch of the electromagnetic switch is connected with the jack. Industrial plugs are suitable for industry, generally divided into 3-core, 4-core, 5-core, etc. The current is generally divided into 16A, 32A, 63A, 125A, 250A, 420A, etc., and the protection level can be divided into IP44 and IP67, which are relatively conventional. Generally, it is used with industrial sockets and industrial connectors. Embedded socket is embedded in the integrated communication cabinet, which is a power supply device that provides basic DC power for communication and data equipment in the same cabinet. It also has certain versatility.The characteristics of industrial plugs depend on the environment in which various industrial production theme activities take place, especially the first industrial chain, such as petrochemical ironmaking and mining equipment, which is very different from the environment encountered by the manufacturing industry, such as the third industry, so higher specifications are put forward for its performance.At present, the industrial plugs of many well-known brands in the market are mixed with a wide variety of quality, so how do we choose to buy reassuring products?First, look at well-known brandsThere is a great difference in the quality of industrial plug and socket products, because many ordinary customers don't have the way to tell whether the products are good or bad. Coupled with the limitations of understanding the switch and socket brands, some unscrupulous businessmen have a living environment, and some fake and shoddy products are injected into the sales market. Perhaps, many companies pay great attention to their own corporate image, have higher regulations on product quality and ensure after-sales maintenance services. For example, the manufactured industrial plugs and sockets, radio frequency connectors and other industrial lamp-connecting line equipment have very good moisture-proof and pollution-proof effects, and the quality is also ensured. They are classified as middle-and high-grade products in the same industry competition, but the price is very competitive.Second, check the appearanceIndustrial blockage control panel shall be uniform, smooth in surface, free of dents, spots, 0, dirt and cracks. Lack of plastic, deformation, scratches, minor defects, five burrs of metal products, cracks, corrosion, damaged screws and other poor conditions.Third, weigh the net weightWhen choosing an industrial plug, you should also estimate its weight. If the inn is made of thin copper sheet, it can be lighter. However, good industrial plugs are generally made of copper sheets and terminal blocks, which will be firmer, and the relativity of components will be emphasized. Copper plug is an important part of industrial plug and a key component to identify counterfeit products. Customers need to pay attention when shopping: some manufacturers will put stainless steel plates in their products to increase the net weight, and people must be clear when shopping.