Talking about the classification of terminal blocks!
Terminals can be divided into European terminal series, plug-in terminal series, barrier terminal series, spring terminal series, track terminal series, through-wall terminal series, photoelectric coupling terminal series.
Plug-in series terminal blocks
It consists of two parts plug-in connection, one part presses the wire tightly, and then plugs into the other part, this part is soldered to the PCB board. The mechanical principle of this connection bottom and this anti-vibration design ensure the long-term airtight connection of the product and the reliability of the finished product. Mounting ears can be added at both ends of the socket. The mounting ears can protect the tabs to a large extent and prevent the tabs from being arranged poorly. 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 lock buckle. 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 the installation is completed. A variety of socket designs can be matched with different matrix insertion methods, such as horizontal, vertical or inclined to the printed circuit board, etc., and different methods can be selected according to customer requirements. You can choose either metric wire gauge or standard wire gauge, which is currently the most popular terminal type on the market.
European series terminal blocks
Terminals such as PHOENIX; Weidmuller in Germany are represented as a cost-effective form of existing wiring technology.
Barrier series terminal blocks
It is able to realize safe, reliable and effective connection, especially in the use environment of high current and high voltage, which is widely used.
Spring type terminal
It is a new type of terminal using spring device, which has been widely used in the world's electrical and electronic engineering industries: lighting, elevator lifting control, instrumentation, power supply, chemistry and automobile power, etc.
Rail-mounted terminal blocks
It adopts reliable threaded connection technology, electronic tolerance technology and the latest electrical connection technology, and is widely used in power electronics, communications, electrical control and power supply fields.
Track type series terminal block
The use of crimping and unique thread self-locking design makes the wiring connection reliable and safe. The appearance design of this series of terminal blocks is beautiful and generous, and can be equipped with a variety of accessories, such as short-circuit strips, identification strips, baffles, etc.
H-type through-wall terminal
The screw connection technology is adopted, the insulation material is PA66 (flame retardant grade: UL94, V-0), and the connector is made of high-quality and highly conductive metal materials.
H-type through-wall terminal blocks can be installed side by side on panels of 1mm to 10mm thickness, and can automatically compensate and adjust the distance of panel thickness to form a terminal block with any number of poles, and can use isolation plates to increase air gap and creepage distance. The wall-through terminal can be firmly installed in the rectangular reserved hole on the panel without any tools, and the installation is extremely convenient
H-type wall-through terminal blocks are widely used in some occasions that require wall-through solutions: power supplies, wave filters, electrical control cabinets and other electronic equipment. The insulation performance is good, the protection level is high, the user only needs to work directly after the external wiring, eliminating many unnecessary wiring steps. The insulating material of WUK series terminal blocks is modified nylon (PA66), which has good electrical and mechanical properties. Hole, can be connected by the center or by the side plug-in connector; the 4 screws are made of high-strength copper alloy, the conductor is made of electrolytic copper, and the wire frame is made of alloy copper that resists stress crack corrosion. The metal surface is also tinned or nickel plated for protection. All-copper terminals can avoid the battery effect of steel metal parts and copper wires in a humid environment. There is a connection mm2 in the middle of the terminal. The wire voltage is 800V and the current is 41A. The insulation material of the WMSTB series PCB terminal is made of modified imported nylon (PA66), which has good electrical and mechanical properties. The conductor is made of electrolytic copper. , The wire frame is made of alloy copper resistant to stress crack corrosion, and the surface of these metals is also tinned or nickel plated for protection. Whether you need to connect a hard wire to a hard wire, or a hard wire to a multi-strand wire, or a multi-strand wire to a multi-strand wire, modified nylon (PA66) is used for the insulation material of the insurance terminal, 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 frame is made of alloy copper that resists stress crack corrosion. The surface of these metals is also plated with tin or nickel for protection. All-copper terminals can avoid 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 in the center or with a side plug-in connector; it can be connected with a 4mm2 wire with a voltage of 800V and a current of 41A. The test terminal of electrical products is used as a switch. The sliding metal piece can withstand the work of the terminal crimping frame. When switching current, use a screwdriver to loosen the screw and move the slider. The switch position is clear at a glance; there are test sockets at both ends, and the corresponding test terminals can be used for connection testing, and the operation can be performed without interruption when measuring current. It can be connected to a control loop with a voltage of 660V and a current of 57A.
WUK general double-layer terminal block
Color is gray terminal
