Fixed industrial sockets
Fixed industrial sockets are an inseparable element of the electrical infrastructure of many farm and industrial facilities and buildings. Typically professional use requires them to have high mechanical resistance to damage, a high degree of tightness and continuous operation with various currents. The most common places where permanent socket is used are construction sites, mechanical workshops and various types of companies, as well as farms and back-up facilities for single-family houses. The power twist connection system, used in some of the fixed sockets, allows for some protection against accidental disconnection of the connected devices.
Fixed industrial sockets - characteristics
Connecting electrical equipment works in various environments and supports many types of machines and devices. In order for the recognition to be intuitive and to enable quick identification of the voltage of a socket, plug or other assembly and installation equipment, individual colors are assigned to a specific voltage range. The most commonly used plugs and power sockets operating with voltages of 380 to 460V AC are red. The blue color is used for the voltage ranges from 200V to 250V, and the black color for the equipment designed to work with the voltage from 500V to 690V. In addition, yellow and white are the low-voltage equipment for 50V to 130V networks. Due to the intensity of currents that can be transmitted by the socket and the number of connection pins, fixed industrial sockets can be of several types:
3 plug fixed socket that allows you to connect devices with a voltage of 220V. They have two power poles and one pin for protection. This type of industrial sockets is used in many single-family houses, farms and small and medium-sized industrial plants. For example, a fixed screwless socket with quick fastening of the wiring allows you to power electric saws, concrete mixers, welders and transport belts.
The 4-pin socket is an older type of connection. Currently, they are used in smaller quantities to power older devices. Three of the five places are responsible for connecting the individual phases of the current, and one is for grounding (PEN). They work with a voltage of 400V in three-phase networks. In newer constructions it may be present as solid nickel seat. It is a more temperature-resistant design. This is achieved by applying a nickel layer to brass metal parts. This combination of both metal properties prevents creep of the connecting material at extremely high temperatures, hence the name solid nickel socket.
Industrial fixed 5-hole sockets are the most popular type of force connection. They can be in the power twist version or the standard option with a protective flap. The wiring is connected by means of a quick connector, e.g. a fixed screwless socket, or a typical screw connector. Apart from bringing the individual phases to the connection sockets, this type of socket has one neutral and one protective terminal.
In addition to the above three types of industrial sockets, there are various types of multi-contact coaxial or serial sockets for connecting various types of industrial equipment. Multi-pin sockets are also used in the automotive industry to connect individual sections and sections of electric cables.
Types of industrial sockets
Depending on the place and nature of work, industrial sockets may have several forms. In these criteria, they are divided into surface-mounted, panel-mounted and portable. Surface-mounted sockets are adapted to surface-laid installation, as well as to be mounted in all kinds of panels and switchboards. Most often made of plastics, they ensure safe operation and maintain optimal operating parameters in all conditions. There are also devices made of aluminum and of an unusual shape of connection sockets. The design of the various types of sockets allows the plug to be connected perpendicularly or diagonally at different angles. In this way, you can choose the most optimal type of device for your location. Various types of fixed panel industrial sockets are suitable for installation in electrical switchboards, control panels and flat elements of machines and devices. The external element can be equipped with a standard plug or a power twist connector. All devices are protected and secured with the appropriate protection class from IP44 upwards. In this way, you can achieve a connection that is completely resistant to water penetration in the event of flooding or temporary immersion in devices marked IP67.