Using terminals is better. The advantage of terminals is that they make wiring convenient, simple, safe, and stable. Terminal block is a type of accessory product used to achieve electrical connections, which is divided into connectors in industry. With the increasingly strict and accurate requirements of industrial automation and industrial control, the usage of terminal blocks is gradually increasing. With the development of the electronics industry, the scope of use of terminal blocks is becoming wider and the types are also increasing.

At present, the most widely used PCB, in addition to the board end, also includes hardware end, nut end, spring end, etc. Terminal blocks are used to facilitate the connection of wires. It is actually a metal sheet sealed in insulating plastic. Both ends have holes for inserting wires. There are screws used for fastening or loosening. For example, two wires sometimes need to be connected and sometimes need to be disconnected. At this point, you can connect it using a terminal and disconnect it at any time without welding or wrapping, which is very convenient and fast. In addition, it is suitable for a large number of wire interconnections. The power industry has specialized terminal boxes, which are all wiring terminals, single-layer, double-layer, current, voltage, ordinary, breakable, etc. A certain crimping area is to ensure reliable contact and sufficient current.

Wiring terminals can be divided into WUK terminal series, European terminal series, plug-in terminal series, transformer terminal, building wiring terminal, fence terminal series, spring terminal series, track terminal series, through wall terminal 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, various ring terminals, pipe terminals, wiring terminals, copper strip iron strips (2-03, 4-03, 4-04, 6-03, 6-04), etc.

By utilizing the characteristics of existing track connection terminals, WUK circuit connection technology composed of electronic components has achieved transmission coupling of optoelectronic processes. The core of automatic control is that the control unit must be reliably isolated from sensors and actuators to avoid interference. WUKG optical isolation terminals can perform this function well and ensure that the on-site signals match the low voltage required by the electronic control device. It can also be used as an interface component between peripheral devices and process controls, signals, and regulators, suitable for different voltage and power ranges. The optical isolation end has the advantages of control signal loss, high switching frequency, no mechanical contact shaking, no wear switch, high insulation voltage, not afraid of vibration, not affected by position, and long service life, which are widely used in the field of automatic control.