the history and definition of terminal block

1928, Phoenix Electric invented the world's first one modular terminal block, which is the prototype industrial terminal block of the modern terminal is Phoenix Electric applied for and obtained the first patent. Since then, Phoenix Electrical passion innovation, commitment to the development of various connection technologies, forming a perfect electrical interface technology systems, many of which product series has become the industry standard application. To 2012, CLIPLINE product range has more than 3000 kinds, widely used in various industrial control cabinets and electrical connection cabinet occasion. terminal block 12 port patch panel is to facilitate the application of the wire connection, it is actually a period of closure in insulating plastic inside the metal sheet has holes at both ends of the wire can be inserted with screws for fastening or loosening, such as two wires, sometimes need to be connected, and sometimes you need to disconnect, then you can use the terminal to connect them, and you can cate5e network cable disconnect at any time, without having to weld them together or intertwined, it is quick and easy. And for a lot of wire interconnect in the power industry have a special terminal block, terminal box, above all terminals, a single layer, double layer, current, voltage, common, can be broken, and so on. A crimp in order to ensure reliable contact with the area, and to ensure a sufficient current through.

Terminals requirements

Mechanical structural safety requirements terminals in terms of chemistry and structural materials and moving parts to ensure the safety of live, such as shell edges, hardware aspects of glitches, and various parts of the connection strength, even stable under electrical terminal block exercise conditions sex, above all in the mechanical structure of the power industry requirements for terminals.
2, enclosure protection requirements mainly JB / T 9568-2000 provides for protection class, it is mainly divided into two types, one is solid foreign protection level, one is water damage caused to equipment and products.
3, insulation coordination requirements are mainly based on the materials used, the working voltage and environmental pollution levels, come together to select clearances and creepage distances, thereby protecting the safety of staff and products work, but also make the product does not occur in the over-voltage insulation damage .
4, the tracking index requirement for the product in the course of the surface of the solid insulating materials in the electric field and an electrolyte to form a conductive path, so that the insulating properties of the insulating material housing decline, affecting the safety of the product. If insulation voltage level at the same conditions, tracking index is high, the product creepage distance can be reduced, if the product enters power sector development in this regard, please pay full attention.
5, the thermoplastic material in the work requirements of the deformation, which is mainly of the temperature and the contact resistance of the terminals in the work, the high temperature which causes the deformation of the housing becomes soft, so that the electrical short-circuit, resulting in a serious accident, so the carrier terminals Select the material flow components was very important.
6, electric shock requirements, the structural aspects of the operating element should not be charged, terminal and internal PCB Spring Terminal Block connections should be accessible to this area mainly for screw torque and reliability requirements, should prevent the screw terminals can be touched, Loose wires accidentally shorted. Such as the ground terminal requirements: ground resistance class security products should not exceed 0.5Ω.

Wiring terminals FAQ

1, deformation stitching portfolio digit growth, the main reason is because of the irrational structure of the Falcon lead to the uneven stitching two up and down in front, as shown in the structural design must consider the force and deformation of its splicing Falcon direction. 2, screw anti-out problem, in this regard, I recommend the best Barrier terminal block use of anti neck out, because it is compared with the hoop off avoids anti-mouth screw rod and hoop mouth tolerances annoyance. And reliable construction tolerances easy to control. 3, screws and steel pieces with salt spray test in question after plating, due to the company by 2012 standard thread plating (plating is limited, but much of the thread corresponding coating thickness I think remains to be determined), to solve this problem There are two ways in the plating process under normal circumstances, to choose the right sealer and use of the coating in multiple plating, these two methods are to be covered with the naked eye can not see the screw voids generated. Coating a plurality of times using high cost of electroplating, it is recommended to use the first method, this method is that the key is to study the Plug-in terminal block sealer formulation. 4, insertion force the issue in this regard relates to the content more, it has a relationship with the material, plating, structure and industry applications, the connector industry is an important mechanical performance requirements, plug-in terminal even more so, the choice of materials is limited by the terms of the insertion force conductivity (current) and contact resistance and temperature rise. Here is not to do a detailed description of the plating is mainly affected by the type of coating and plating of whether pre-impact, Generally speaking, in the same material and structure than the first pre-plated compression tableting press and then plated plug power in regard to stability, because after the plating process is the invisible material made of hardened metal , and just prior to pressing to eliminate this phenomenon. The main consideration is the structure of the contact pressure plate and lead the needle, needle and tablet lead exposure, mostly in line contact, which resulted in an instant when suddenly appeared with a big plug, and then suddenly smaller, to customers in process used in a very unstable feeling, affecting their life, if the contact pressure plate and lead the needle into surface contact structure, then not only solve the problem of insertion force and reduces contact resistance and temperature l.

Wall type terminal block

With screw connection cable technology, insulating materials for PA66 (flammability rating: UL94, V-0), using high-quality connectors highly conductive metallic material. H-type wall-type terminals can be mounted side by side on the thickness of 1mm to 10mm and other Barrier terminal block panels, panel thickness adjustment distance can automatically compensate any terminal block consisting of poles, and can be used to increase the air gap separating plate and creepage distance. No tools can be wall-type terminals securely mounted in a rectangular hole on the panel aside, the installation is extremely convenient. H-type terminal block wall is widely used in some of the solutions that need to pass through the wall of the occasion: Power, filters, electrical control cabinets and other electronic devices. Good plug in terminal block insulation properties, high degree of protection, users only need to work directly in the external wiring, eliminating a lot of unnecessary wiring steps. Insulation material WUK series terminal with modified nylon (PA66), which can be accessed 4mm2 wire voltage of 800V electrical current is 41A connectivity products

What is the male and female terminal block and standard terminal block?

Female terminal block and the male terminal block: the female terminal or the male terminal of the material to the copper alloy, copper alloy or plating, nickel, or nickel alloy. Forming the female terminal or the male terminal has been trimmed in the form of plug in terminal block strips, if, when the terminal with the processing tool continuously into the terminal and the terminal will be crimped and with separate, then in this case, terminals, and contact with the edge of the terminal plating is not required. Standard Terminal: The mechanical properties of the test, plug in terminal block test insertion - pull out the material standard terminals used in the test should be non-plated brass, equivalent to the standard terminal C26000 alloy at temperatures and thermal cycling tests used should be resistant to corrosion spring terminal block or tin plate steel, by standard Rockwell 30T hardness, Rockwell hardness of 68 ± 5. Only if the female terminals connected to a copper alloy male terminal, then when you need to use a standard terminal standard C26000 copper alloy terminal 30T Rockwell hardness test according to the standard, made of brass a hardness of 62 ± 7