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Production Advantage
We have centralized many professional engineers in the field of switches and electromechanical components, and also have cultivated a number of young staff with good skills. Our engineers not only have improved the performance of old products, but also developed new products ahead of other producers.
Company Certificate
We have got ISO9001:2000 、ISO9001:2008 Quality System Certification.Most of our products have certified by the authentic certification authorities,home and aboraod,such as CQC、CE 、UL、ENEC etc.
Professional Team
We have professional designers, we constantly change from changing. Revolution innovation makes our products easy to use, convenient, and security because your choice makes us more motivated.
After -Sales
Professional and considerate after-sales team, attentive service, so that you have no worries after the sale!
What is Plug In Terminal Block?
A plug-in terminal block, also known as a pluggable terminal block, is a device that connects wires in electrical systems. It has a base connector and a removable, plug-in mating connector that is usually a male or female plug.
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.
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.
Due to the selection of high-quality materials, the electrical conductivity of the terminal can be guaranteed, and the surface is plated with silver or tin, which is anti-oxidation and anti-corrosion. Part of the circular and fork-shaped terminals are divided into different widths in the same specification as the electrical connection part to meet the different width needs of customers. The terminal insulating sleeve is in the shape of a funnel, which is easy for wire insertion. The thickness of the terminal will directly affect the current load, temperature and crimping strength.
High-quality and qualified terminal products will not break under pressure, and can still have a strong and reliable pulling force in a harsh environment. This product is actually used to facilitate the connection of wires. It is actually a piece of metal enclosed in insulating plastic. There are holes at both ends to insert the wires. There are screws for fastening or loosening. It is suitable for a large number of wire interconnections. , There are special terminal blocks and terminal boxes in the power industry.
From a functional point of view, the main task of the terminal is to make a reliable mechanical and electrical connection to the wire. The wire crimping frame is made of quenched hardened and galvanized passivated steel, and the steel screws that can withstand huge moments can firmly compress the wires. The copper conductive sheet is plated with a flexible tin-lead alloy to ensure air tightness, low resistance and connection with the wire.
In the process of using terminal blocks, contact force is one of the basic elements. That is to say, if the contact pressure is insufficient, no matter how good the conductive material is, it will not help. And if the contact force is too low, there will be displacement between the wire and the conductive sheet, resulting in oxidation pollution, increasing the contact resistance and causing overheating.
In addition, the voltage drop at the contact point of the terminal is also one of the indicators to identify the quality of the terminal. Even if a small torque is applied to the screw, the value of the voltage drop is still much lower than the required limit. At the same time, the applied torque changes in a wide range, and the voltage drop is almost unchanged. Therefore, although the torque used by different operators is different, it will not affect the quality of the connection.
Several Correct Connection Methods Of Plug In Terminal Block?
Plug In Terminal Block crimping is a technology that reduces and moves metal materials within the required range and connects the transmission line to the contact point pair. A good crimp connection can cause metal materials to flow together, causing the transmission lines and circuit breakers to deform symmetrically to the raw materials. This type of connection is similar to a cold-welded connection, which can obtain stronger impact toughness and continuity of electrical equipment, and can bear more extreme natural environmental standards. At this stage, most of them feel that proper crimp connection is better than welding, especially in high current conditions.
Plug In Terminal Block welding generally refers to solder, and the continuity of the metal material between the welding material and the surface to be welded is critical for the welding connection. Therefore, solderability is critical for connecting terminals. Tin-aluminum alloy, silver and gold are common coatings for connecting terminals. The common welding ends of a pair of leaf spring circuit breakers are welding plates, stamping die welding plates and vacant welding plates. A circular arc-shaped vacancy is drilled on the general welding end of the pin-eye circuit breaker pair.
How To Maintain And Maintain The Plug In Terminal Block
The general installation environment requirements of the terminal block: the lower ambient temperature is -5°C, and the higher ambient temperature is 40°C.
A large number of studies have shown that the failure rate of terminal blocks increases exponentially with the increase of temperature, and the service life decreases exponentially with the increase of temperature. When the ambient temperature increases by 10℃, the service life of the terminal block will be halved.
In addition, the good operation of the terminal block also has a great relationship with the cleanliness of the environment.
Winter is a period of frequent occurrence of terminal failures. Only through good maintenance can the occurrence of equipment failures be reduced. Please pay attention to it.
During the maintenance of high-voltage terminals in winter, pay attention to the temperature of the installation environment of the terminals, and regularly clean the dust inside the terminal row to ensure the unobstructed cooling air passage. Strengthen inspections and improve the surrounding environment of terminals, motors and lines.
Certifications
Our Factory
In order to meet the individual needs of customers, our company has a mold department and injection workshop, can provide customized product services. We have independent development and manufacturing capabilities, from product design to manufacturing, we can follow up the whole process to ensure that products are produced according to customer requirements.
In order to ensure the quality and delivery time of products, our company has an assembly workshop and a fully automatic assembly workshop. Our assembly shop is efficient for product assembly and quality inspection. Fully automated workshops achieve efficient and precise production processes through automated production lines, ensuring product quality and delivery cycles.
FAQ
As one of the most professional plug in terminal block manufacturers and in China, we're featured by quality products and good price. Please rest assured to buy customized plug in terminal block from our factory.
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