Historical development of terminal blocks:

In 1928, Phoenix Contact invented the world's modular terminal block. This is the prototype of the modern terminal, and it is also an invention that Phoenix Contact applied for and obtained. Since then, Phoenix Contact has been passionate about innovation and dedicated to various connection technologies, forming an electrical interface technology system, many of which have become industry application standards.

Definition of terminal:

The terminal block is used to facilitate the connection of wires. It is actually a piece of metal enclosed in insulating plastic. There are holes at both ends for the wire to be inserted. There are screws for fastening or loosening, such as two wires, sometimes They need to be connected and sometimes disconnected. At this time, they can be connected with terminals and can be disconnected at any time without having to weld or twist them together, which is very convenient. Moreover, it is suitable for a large number of wire interconnections. In the power industry, there are special terminal blocks and terminal boxes, which are all connected terminals, single-layer, double-layer, current, voltage, ordinary, breakable, and so on. The crimping area is for contact and enough current to pass.

Classification of terminal blocks:

Terminals can be divided into:

WUK terminal block, European terminal block series, plug-in terminal block series, transformer terminal block, building wiring terminal, fence terminal block series, spring terminal block series, track terminal block series, through-wall terminal block series, Photoelectric coupling terminal series, 110 terminal, 205 terminal, 250 terminal, 187 terminal, OD2.2 ring terminal, 2.5 ring terminal, 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, all kinds of ring terminal, tube terminal, terminal block, copper strip iron strip (2-03, 4-03, 4 -04, 6-03, 6-04) etc.

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