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There are many types of terminal blocks, which can be divided into many types according to different classification standards. The following are some common types of terminal blocks and their characteristics:

 

1. Classification by function

 

Grounding terminal: Mainly used for grounding connection to ensure the safety of electrical equipment.

 

Conductive terminal: Used for electrical connection to transmit current and signals.

 

Insulating terminal: Has insulation function to protect electrical connection from external interference.

 

2. Classification by purpose and shape

 

Plug-in terminal block

It is made up of two parts for plug-in connection. One part presses the wire tightly, then plugs it into the other part, and then solders it to the PCB board.

This terminal design has an anti-vibration function to ensure long-term airtight connection and reliability of use.

 

Fence terminal block

It can achieve safe, reliable and effective connection, especially in high current and high voltage use environment.

 

Spring terminal block

The new type of terminal block using spring device has been widely used in the world's electrical and electronic engineering industries, such as lighting, elevator lifting control, instrumentation, power supply, chemistry and automotive power.

 

DIN terminal blocks

 

Using reliable thread connection technology, electronic fuse technology and the latest electrical connection technology, they are widely used in power electronics, communications, electrical control and power supply and other fields.

The DIN terminal blocks adopt crimping and unique thread self-locking design, making the wiring connection reliable and safe.

 

Through-wall terminal blocks

Using screw connection technology, the insulation material is usually PA66 (flame retardant grade: UL94, V-0).

Widely used in some occasions that require through-wall solutions, such as power supplies, filters, electrical control cabinets and other electronic equipment.

 

Other types

Also include general terminals, connection terminals, test terminals, test connection terminals, insurance terminals, optical isolation terminals, terminal terminals, etc.

For example, insurance terminals are used in occasions where it is very convenient to disconnect the circuit; optical isolation terminals are equipped with optical isolation elements, which are suitable for opening the circuit; terminal terminals are used to fix or separate terminal blocks of different installation units.

 

3. Classification by installation method

 

PCB board terminals

Terminal blocks that are directly welded or plugged into the PCB board.

Hardware terminals

Terminal blocks fixed by screws or other hardware.

Nut terminals

Terminal blocks that are fastened with nuts.

 

4. Classification by special shape

 

In addition to the common classifications mentioned above, there are also some special-shaped terminals, such as U-type, O-type, C-type, W-type, Y-type, TA-type, TB-type, etc. These terminals are usually used for connecting wires of specific shapes or sizes.

 

In summary, there are many types of terminals, and each type has its specific application scenarios and advantages. When choosing a terminal, it is necessary to comprehensively consider factors such as specific electrical connection requirements, working environment, and safety requirements.