German SOHARD plug SOHARD model SOHARD price

SOHARD plugs are accessory products used to achieve electrical connections and are categorized industrially as connectors. As the level of industrial automation increases and industrial control requirements become stricter and more precise, the consumption of terminal blocks is gradually rising. With the development of the electronics industry, the scope of use for terminal blocks is expanding, and their varieties are increasing. Besides PCB board terminals, the most widely used types include hardware terminals, nut terminals, spring terminals, and so on. Terminal blocks are applied to facilitate wire connections; they are essentially metal strips enclosed in insulating plastic, with holes at both ends for inserting wires and screws for tightening or loosening. For example, two wires may sometimes need to be connected and other times disconnected; in such cases, terminals can be used to connect them, allowing for disconnection at any time without the need for soldering or twisting them together, which is very convenient and quick. They are also suitable for large-scale wire interconnections. In the power industry, there are dedicated terminal strips and terminal boxes filled with terminal blocks, including single-layer, double-layer, current, voltage, standard, and disconnectable types. A certain crimping area is required to ensure reliable contact and to guarantee that sufficient current can pass through.

SOHARD plug applications

Mainly applied in industries such as lighting, communications, and security. Plug-in terminals have the widest range of applications, such as in variable frequency drives, explosion-proof equipment, CNC panels, access control controllers, sensors, PLC, instruments and meters, power supplies, servo drives. The common requirements for plug-in terminals in these application industries are: stable insertion and extraction force, low contact resistance, and the ability to meet certain life and fatigue standards, which places higher demands on the materials used for hardware spring clips. This requires product designers to have considerable experience in structure and material selection. Barrier-type terminals are mainly applied in: power supplies, relays (especially double-layer terminals), inverters, the elevator industry (less common), and air conditioning. The requirements for this series of terminals include high torque requirements for screws during wire crimping, the distance when the screw is retracted to its highest position must be greater than the maximum wire crimping range, long-position terminals must not warp or deform, and the screws must have high corrosion resistance.

SOHARD plug classification

Buses can be divided into five major types based on function and specification: Data Bus (Data Bus): Transmits data that needs to be processed or stored back and forth between the CPU and RAM. Address Bus (Address Bus): Used to specify the address of data stored in RAM (Random Access Memory). Control Bus (Control Bus): Transmits signals from the microprocessor Control Unit to peripheral devices. Expansion Bus (Expansion Bus): A bus for data communication between external devices and the computer host, such as the ISA bus and PCI bus. Local Bus (Local Bus): Replaces expansion buses for higher-speed data transmission. Among these, the Data Bus DB (Data Bus), Address Bus AB (Address Bus), and Control Bus CB (Control Bus) are collectively referred to as the system bus, commonly known as the bus. In some systems, the data bus and address bus are multiplexed, meaning the signals on the bus represent data at certain times and addresses at others; while in other systems, they are separate. The 51 series of microcontrollers have multiplexed address and data buses, whereas buses in general PC systems are separate. The "Data Bus DB" is used to transmit data information. The data bus is a bidirectional tri-state bus, meaning it can transmit data from the CPU to memory or other components such as I/O interfaces, and can also transmit data from other components to the CPU. The bit width of the data bus is an important indicator of a microcomputer, usually consistent with the word length of the microprocessor. For example, the Intel 8086 microprocessor has a word length of 16 bits, and its data bus width is also 16 bits. It should be noted that the meaning of data is broad; it can be actual data, instruction code, or status information, and sometimes even control information. Therefore, in practical work, what is transmitted on the data bus is not necessarily just data in the strict sense.

SOHARD plug applications

Each type of bus largely has its own application areas. For example, FF and PROFIBUS-PA are suitable for process control in industries such as petroleum, chemical, pharmaceutical, and metallurgy; LonWorks, PROFIBUS-FMS, and DevieceNet are suitable for buildings, transportation, agriculture, and other fields; DeviceNet and PROFIBUS-DP are suitable for the manufacturing and processing industry. However, these divisions are not absolute, as each fieldbus strives to expand its application areas and penetrate each other's markets. Most fieldbuses are backed by one or several large multinational corporations and have established corresponding international organizations to expand their influence and gain more market share. For example, PROFIBUS is mainly supported by Siemens Company, and the PROFIBUS International User Organization was established. WorldFIP is mainly backed by Alstom Company, and the WorldFIP International User Organization was established.

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