Terminal blocks can be classified into WUK terminal blocks, European-style terminal block series, plug-in terminal block series, transformer terminal blocks, building wiring terminal blocks, fence terminal block series, spring terminal block series, track terminal block series, and through-wall terminal block series Photoelectric coupling type terminal series, 110 terminals, 205 terminals, 250 terminals, 187 terminals, OD2.2 circular ring terminals, 2.5 circular ring terminals, 3.2 circular ring terminals, 4.2 circular ring terminals, 2 circular ring terminals, 6.4 circular ring terminals, 8.4 circular ring terminals, 11 circular ring terminals, 13 circular ring terminals, flag series terminals and sheath series, various rings Shaped terminals, tubular terminals, wiring terminals, copper strips and iron strips (2-03, 4-03, 4-04, 6-03, 6-04), etc.
There are tens of thousands of brands and series of terminal blocks. The brands currently used in the market include: German PHOENIX; Weidmuller;" "WAGO; "JITE" Taiwan Town Ocean Nanjing Sanmenwan NJSMW; Ganwei Hardware, Changfeng Hardware connection terminals and other series of
products.
The products include PCB plug-in type, solder pin type, spring clamping type, screw wire pressing frame type, track type, and traditional through-type terminal blocks. Electronic module; Module box, frame, guide rail.
Plug-in series terminal blocks
It is composed of two parts that are plugged and unplugged together. One part presses the wire tightly and then plugs it into the other part, which is soldered onto the PCB board. This connection is based on the mechanical principle at the bottom, and this anti-vibration design ensures the long-term airtight connection of the product and the reliability of the finished product in use. Both ends of the socket can be equipped with mounting ears. The mounting ears can largely protect the contact pieces and prevent them from being improperly arranged. At the same time, this socket design can ensure that the socket can be correctly inserted into the base body. The socket can also have an assembly latch and a locking latch. The assembly buckle can be more firmly fixed to the PCB board, and the locking buckle can lock the mother body and the socket after installation is completed. A wide variety of socket designs can be matched with different insertion methods of the main body, such as horizontal, vertical or inclined towards the printed circuit board, etc. Different methods can be selected according to the customer's requirements. You can choose either metric or standard wire gauges. It is currently the most popular terminal type on the market.
European-style series terminal blocks
With German PHOENIX; Represented by terminals such as Weidmuller, it is the most cost-effective form among the existing wiring technologies. The JITE (Jiete) model is the most complete in the plug-in series of terminal blocks. The terminal is composed of two parts (male and female) that are plugged and unplugged. One part presses the wire tightly and then locates to the other part, which is then soldered onto the PCB board. This wiring design adopts the lifting cylinder principle or the mechanical principle of raising the bottom. This anti-vibration design ensures the long-term air tightness of the product and the reliability of the finished product.
Fence-type series terminal blocks
It can achieve safe, reliable and effective connections, and is widely used in environments with large currents and high voltages.
Spring-type terminal block
It is a new type of terminal block that utilizes a spring device and has been widely applied in the world's electrical and electronic engineering industries: lighting, elevator lifting control, instruments and meters, power supplies, chemical engineering, and automotive power, etc.
Rail-mounted terminal blocks
It adopts reliable threaded connection technology, electronic breaking capacity technology and the latest electrical connection technology, and is widely used in power electronics, communication, electrical control and power supply fields.
Rail-mounted series terminal blocks
The adoption of crimping and a unique thread self-locking design ensures reliable and safe wiring connections. This series of terminal blocks features an elegant and generous appearance design and can be equipped with various accessories, such as short-circuit plates, identification strips, and baffles.
H-type through-wall terminal block
The screw connection wire technology is adopted, the insulating material is PA66(flame retardant grade: UL94, V-0), and the connector is made of high-quality highly conductive metal materials. H-shaped through-wall terminal blocks can be installed side by side on panels with thicknesses ranging from 1mm to 10mm. They can automatically compensate and adjust the distance of the panel thickness to form terminal blocks of any number of poles. Moreover, isolation plates can be used to increase the air gap and creepage distance. The through-wall terminal block can be firmly installed in the rectangular reserved holes on the panel without any tools, and the installation is extremely convenient. H-type through-wall terminal blocks are widely used in some occasions that require through-wall solutions: power supplies, filters, electrical control cabinets and other electronic devices. It has excellent insulation performance and a high protection level. Users only need to connect the wires externally to start working, eliminating many unnecessary wiring steps.
The insulating material of the terminal block is modified nylon (PA66), which has excellent electrical and mechanical properties. The screws are made of high-strength copper alloy, the conductors are made of electrolytic copper, and the wire pressing frames are made of alloy copper resistant to stress crack corrosion. The surfaces of these metals are also tin-plated or nickel-plated for protection. All-copper terminal blocks can prevent the battery effect of steel metal parts and copper wires in a humid environment. There is a connection hole in the middle of the terminal, which can be connected either in the center or with an edge plug-in connector. An electrical connection product that can be connected to 4mm ² wires with a voltage of 800V and a current of 41A.
The insulating material of the PCB terminal block is modified imported nylon (PA66), which has excellent electrical and mechanical properties. The conductor is made of electrolytic copper, and the wire frame is made of alloy copper resistant to stress crack corrosion. The surface of these metals is also tin-plated or nickel-plated for protection. Whether you need to connect hard wires to hard wires, hard wires to multi-strand wires, or multi-strand wires to multi-strand wires.
The modified nylon (PA66) used as insulating material has excellent electrical and mechanical properties. The screws are made of high-strength copper alloy, the conductors are made of electrolytic copper, and the wire pressing frames are made of alloy copper resistant to stress crack corrosion. The surfaces of these metals are also tin-plated or nickel-plated for protection. All-copper terminal blocks can prevent the battery effect of steel metal parts and copper wires in a humid environment. There is a connection hole in the middle of the terminal, which can be connected either in the center or with an edge plug-in connector. Electrical products that can be connected to 4mm ² wires with a voltage of 800V and a current of 41A.
The sliding metal part that functions as a switch can withstand the maximum working current through the terminal wire frame. When switching, just loosen the screw with a screwdriver and move the slider, and the position of the switch will be clear at a glance. It is equipped with test sockets at both ends. By using the corresponding test terminals, it can be connected for testing. When measuring the current, the operation can be carried out without interruption. It can be connected to a control circuit with a voltage of 660V and a current of 57A.
WUK universal double-layer type terminal block
The color is gray. The terminal thickness is 6.2. The cross-sectional area of the wire is 0.2-4:32A:500V. It can be installed on U-shaped or G-shaped rails. The double-layer terminal has twice the wiring capacity of the universal terminal at the same position. The upper and lower layers are designed to be staggered by 2.5mm, which not only makes the visual order clear but also, when wiring on the upper layer, The screwdriver can be conveniently used for wiring operations in the lower area, and the markings are clear.
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