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What is the terminal

Source:JITE     Author:admin     Time: 2012-03-03


Terminal is used to implement the electrical connection accessories, industrial is divided into the category of connectors. As industrial automation degree more and more high and industrial control demand more and more strict and precise, the dosage of the terminal gradually rise. Along with the development of the electronic industry, terminal blocks using range is more and more, and more and more variety. The currently used most widely in addition to PCB terminal outside, still have a hardware terminals, nut terminals, spring terminals, etc.


Terminals in order to facilitate the wire connection is applications, it is actually a seal in insulating plastic inside pieces of metal, both have aperture can insert lead, have used to tighten the screws or loosen, such as two wire, sometimes need to connect, sometimes need to disconnect, then can use terminal connected, and can always disconnected, and don't have to put them up or welding are inextricably intertwined, very convenient and quick. And suitable for a lot of wire interconnection, in the electric power industry will have special terminal row, terminal box, above all terminals, single, double, current, voltage, ordinary, can break, and so on. Certain pressure meet area is to ensure that reliable contact, and can ensure enough current through.


The classification of terminals
Terminals can be divided into WUK terminals, ou terminals series, inserted type terminals series, transformer terminal blocks, building wiring terminal, fences type terminals series, spring type terminals series, rail type terminals series, wear wall type terminals series, photoelectric coupling type terminals series, 110 terminals, 205 terminals, 250 terminals, 187 terminals, OD2.2 circle terminals, 2.5 circle terminals, 3.2 circle terminals, 4.2 circle terminals, 2 circle terminals, 6.4 circle terminals, 8.4 circle terminals, 11 circle terminals, 13 circle terminal flag type series terminals and sheath series, all kinds of annular terminals, tubular terminals, terminals, copper with iron belt (2-03, 4-03, 4-04, 6-03, 6-etc.



Terminals characteristics
Use of existing rail type terminals WUK connection technology, and the electronic components of circuit, realize the photoelectric process transmission coupling. Automatic control that is the core of the control unit must and sensors and actuators reliably away, so as not to interfere with, three bay WUKG2 light is able to every other terminal finish this function, and ensure that the signal and the electronic control unit requirements of low voltage match, can also be control in the process of peripherals and control, signal and regulator device of the interface between components, and is applicable to different voltage and power range. The terminal has control of the light signal losses, switching frequency under high, no mechanical contacts jitter, no wearing high voltage switch, insulation, not afraid of vibration, from position influence and advantages of long life and therefore, in automatic control areas to be widely used.