Terminal blocks can be divided into WUK terminal block, European terminal block series, plug-in terminal block series, transformer terminal block, building terminal block, fence terminal block series, spring terminal block series, rail terminal block series, through-wall terminal block series, photoelectric coupling terminal block series, 110 terminal block, 205 terminal block, 250 terminal block, 187 terminal block, OD2.2 ring terminal block, 2.5 ring terminal block 3.2 Ring terminal, 4.2 ring terminal, 2 ring terminal, 6.4 ring terminal, 8.4 ring terminal, 11 ring terminal, 13 ring terminal flag series terminal and sheath series, various ring terminals, tubular terminal, wiring terminal, copper strip iron strip (2-03, 4-03, 4-04, 6-03, 6-04), etc. The brands and series of terminal blocks have reached tens of thousands. The brands currently used in the market are: PHOENIX, Germany; Weidmuller； WAGO； JITE; Machiyang, Taiwan; Nanjing Sanmenwan NJSMW; Qianwei Hardware, Changfeng Hardware Link Terminal and other series products. Products include PCB plug-in type, solder pin type, spring clamping type, screw crimping frame type, rail type, and traditional through-type terminal blocks; Electronic module; Module box, frame, guide rail.
Plug-in series terminal blocks
It is formed by plugging and connecting two parts. One part compresses the wire and then plugs it into the other part, which is welded to the PCB board. This connection is based on the mechanical principle of the bottom. This anti-vibration design ensures the long-term airtight connection of the product and the reliability of the finished product. The two ends of the socket can be equipped with matching ears, which can protect the connector to a large extent and prevent the poor placement of the connector. At the same time, this socket design can ensure that the socket can be correctly inserted into the mother body. The socket can also have assembly buckle and locking buckle. The assembly buckle can be more firmly fixed to the PCB board, and the locking buckle can lock the mother body and socket after installation. Various socket designs can be matched with the insertion methods of different matrixes, such as horizontal, vertical or inclined printed circuit boards, and different methods can be selected according to customer requirements. Either metric wire gauge or standard wire gauge can be selected, which is the most popular terminal type in the market at present.
European series terminal blocks
German PHOENIX; Weidmuller and other terminals are the most cost-effective form of existing wiring technology. The JITE (Jett) model of plug-in series terminals is relatively complete. The terminals are made of two parts (male seat and female seat) by plug-in connection. One part compresses the wire, and then checks the other part, which is welded to the PCB board. The wiring design adopts the lifting cylinder principle or the mechanical principle of raising the bottom. The anti-vibration design ensures the long-term airtightness of the product and the reliability of the finished product.
Fence type series terminal blocks
It can realize safe, reliable and effective connection, especially in the use environment of large current and high voltage.
Spring type terminal block
It is a new type of terminal block using spring devices, which has been widely used in the world's electrical and electronic engineering industries: lighting, elevator lift control, instrumentation, power supply, chemistry and automotive power.
Track-mounted terminal blocks
Reliable screw connection technology, electronic capacitance technology and the latest electrical connection technology are adopted, which are widely used in power electronics, communication, electrical control, power supply and other fields.
Rail type series terminal blocks
With crimping and unique thread self-locking design, the wiring connection is reliable and safe. The appearance design of this series of terminals is beautiful and generous, and can be equipped with a variety of accessories, such as short circuit strip, identification strip, baffle, etc.
H-type through-wall terminal block
The screw connection wire technology is adopted, the insulation material is PA66 (flame retardant grade: UL94, V-0), and the connector is made of high-quality high-conductivity metal material. H-type through-wall terminal blocks can be installed side by side on the panels with thickness of 1mm to 10mm, and can automatically compensate for the distance of adjusting the panel thickness to form any number of terminal blocks, and can use isolation plates to increase air gap and creepage distance. The through-wall terminal block can be firmly installed in the rectangular reserved hole on the panel without any tools, which is extremely convenient for installation. H-type through-wall terminal blocks are widely used in some occasions requiring through-wall solutions: power supply, filter, electrical control cabinet and other electronic equipment. With good insulation performance and high protection level, users can work directly after external wiring, which saves many unnecessary wiring steps. Modified nylon (PA66) is used as the insulating material of WUK series terminal blocks, which has good electrical and mechanical properties. The screw is made of high-strength copper alloy, the conductor is made of electrolytic copper, and the wire pressing frame is made of alloy copper resistant to stress crack corrosion. These metal surfaces are also protected by tin or nickel plating. All copper terminal blocks can avoid the battery effect of steel metal parts and copper conductors in wet environment. There is a connection hole in the middle of the terminal, which can be connected in the center or with side plug-in connectors; It can be connected to electrical connection products with 4mm2 conductor voltage of 800V and current of 41A
WMSTB series
The insulation material of the PCB wiring terminal is modified imported nylon (PA66), which has good electrical and mechanical properties. The conductor is made of electrolytic copper, and the crimping frame is made of alloy copper resistant to stress crack corrosion. These metal surfaces are also protected by tin or nickel plating. Whether you need to connect hard wire with hard wire, hard wire with multi-strand wire, or multi-strand wire with multi-strand wire
Fuse terminal
The modified nylon (PA66) used as insulating material has good electrical and mechanical properties. The screw is made of high-strength copper alloy, the conductor is made of electrolytic copper, and the wire pressing frame is made of alloy copper resistant to stress crack corrosion. These metal surfaces are also protected by tin or nickel plating. All copper terminal blocks can avoid the battery effect of steel metal parts and copper conductors in wet environment. There is a connection hole in the middle of the terminal, which can be connected in the center or with side plug-in connectors; It can be connected to electrical products with 4mm2 conductor voltage of 800V and current of 41A
Test terminal
The sliding metal parts that play the role of switch can withstand the maximum working current through the terminal crimping frame. When switching, use a screwdriver to loosen the screw, move the slider, and the switch position is clear at a glance; Test sockets are set at both ends, and the connection test can be carried out with corresponding test terminals. The operation can be uninterrupted when measuring the current. The control circuit with voltage of 660V and current of 57A can be connected.
WUK universal double-layer terminal block
The color is gray Terminal thickness: 6.2 Conductor section: 0.2-4:32A: 500V can be installed on U-shaped or G-shaped rails. The double-layer terminal block has twice the wiring capacity of the universal terminal block at the same location. The upper and lower layers are designed to be staggered by 2.5mm. It is not only visually clear, but also in the case of the upper layer of wiring, the screwdriver can be very convenient for wiring in the lower layer, and the identification is clear
