Type and function introduction of wiring terminal

1、 What is Terminal block 。

Terminal block It is an accessory product to realize electrical connection, which is divided into the category of connector in industry. With the improvement of industrial automation and industrial control requirements, the use of wiring terminals is gradually increasing. With the development of electronic industry, the use range and types of terminal blocks are more and more wide. In addition to PCB board terminals, there are hardware terminals, nut terminals, spring terminals, etc.

II Terminal block Type of.

Terminal block It can be divided into UK terminal, European terminal, plug-in terminal, transformer terminal, fence terminal, spring terminal, track terminal, through wall terminal, photoelectric coupling terminal, terminal (110, 205, 250, 187), ring terminal (od2.2, 2.5, 3.2, 4.2, 2, 6.4, 8.4, 11, 13), flag series, sheath series, copper strip and iron strip (2-03, 4-03, 4-04, 6-03, 6-04), etc.

1. Pluggable.

It is composed of two parts of plug-in connection. One part compresses the wire, then inserts the other part and is welded on the printed circuit board. The bottom mechanical principle of this anti vibration design ensures the long-term airtight connection of the product and the reliability of the finished product. Both ends of the socket can be equipped with ears, which can greatly protect the joints and prevent poor arrangement of joints. At the same time, the socket design can ensure that the socket can be correctly inserted into the matrix. The socket can also have assembly buckle and locking buckle. The assembly buckle can be more stably fixed on the printed circuit board, and the locking buckle can lock the matrix and socket after installation. Various socket designs can be matched with different parent insertion methods, such as horizontal, vertical or inclined printed circuit board. Different methods can be selected according to customer requirements. For details, you can enter Shenglan technology product network and choose products suitable for you. You can choose either metric wire gauge or standard wire gauge, which are the most popular terminal types in the market.

2. Fence type.

It can realize safe, reliable and effective connection, especially in the environment of high current and high voltage.

3. Spring loaded.

It is a new type of spring terminal, which has been widely used in the world's electrical and electronic engineering industries: lighting, elevator lifting control, instruments and meters, power supply and automobile power.

4. Track installation.

It adopts reliable thread connection technology, electronic fault tolerance technology and the latest electrical connection technology, which is widely used in the fields of power electronics, communication, electrical control and power supply.

5. Track type.

It adopts thread pressing and unique thread self-locking design to ensure reliable and safe connection. This series of terminals has beautiful appearance design and can be equipped with short circuit board, sign, baffle and other accessories.

6. Through the wall.

Screw connecting wire technology is adopted, PA66 (flame retardant grade: UL94, V-0) is used as insulating material, and high-quality and highly conductive metal materials are used for connectors.

The H-type through wall wiring terminals can be installed side by side on the panel with a thickness of 1mm to 10mm, and automatically compensate and adjust the distance of the panel thickness to form any number of terminal blocks. The isolation plate can be used to increase the air gap and creepage distance. The through wall wiring terminal can be firmly installed in the rectangular reserved hole on the panel without any tools, and the installation is extremely convenient.

H-type through wall terminals are widely used in some occasions that need through wall solutions: power supply, filter, electric control cabinet and other electronic equipment. Good insulation performance and high protection level. Users only need to work directly after external wiring, eliminating unnecessary wiring steps. Modified nylon (PA66) is the insulating material of UK series wiring terminals, which can connect 4mm2 conductor with voltage of 800V and current of 41a.

3、 What is the function of the terminal?

The function of the terminal block is to connect the low-voltage cable and the hardware when the wire is connected to the electrical equipment (usually transformer, box and cabinet).

Terminal block The application of is to facilitate the connection of wires. In fact, it is a section of metal sheet sealed in insulating plastic. There are holes at both ends to insert wires, which can be fastened or loosened with screws. For example, if two wires sometimes need to be connected and sometimes need to be disconnected, terminals can be used to connect the wires, which can be disconnected at any time without welding or winding the wires together, Very convenient and fast. It is also suitable for a large number of wire interconnection. In the power industry, there are special terminal blocks and terminal boxes, all of which are wiring terminals, single-layer, double-layer, current, voltage, common, breakable, etc. Some crimping areas are to ensure reliable contact and sufficient current.

The wiring terminal is actually a kind of connector, which is used to make the connection of wires easier. It is a metal sheet sealed in insulating plastic, with holes for inserting wires at both ends, and screws for fastening or loosening. For example, two wires sometimes need to be connected and sometimes disconnected. At this time, the terminal can be connected and disconnected at any time without welding or winding, which is convenient and fast.