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How to use PCB series terminal blocks

The plug-in series terminal block is formed by two parts plug-in connection, one part presses the wire tightly, and then plugs into the other part, this part is soldered to the PCB board. The mechanical principle of the connection bottom and the anti-vibration design ensure the long-term airtight connection of the product and the reliability of the finished product. Mounting ears can be added at both ends of the socket. The mounting ears can protect the tabs to a large extent and prevent the tabs from being arranged poorly. At the same time, this socket design can ensure that the socket can be correctly inserted into the mother body. The socket can also have assembly buckle and lock buckle. The assembly buckle can be more firmly fixed to the PCB board, and the locking buckle can lock the mother body and the socket after the installation is completed. A variety of socket designs can be matched with different matrix insertion methods, such as horizontal, vertical, or inclined to the printed circuit board. Either metric wire gauge or standard wire gauge can be selected.
The plug-in terminal series adopts the easy-to-operate pluggable connection and the firm and universal screw method to combine, and various parts are connected.

MX158
Plug-in series terminal function
The plug-in type quick terminal block series adopt the easy-to-operate pluggable connection and the solid and universal screw method to connect various parts. The plug-in quick terminal block is made up of two parts plugging and unplugging. One part presses the wire tightly, and then plugs it into the other part, which is soldered to the PCB board. The mechanical principle of the connection bottom and the anti-vibration design ensure the long-term airtight connection of the product and the reliability of the finished product. Mounting ears can be added at both ends of the socket. The mounting ears can protect the tabs to a large extent and prevent the tabs from being arranged poorly. At the same time, this socket design can ensure that the socket can be correctly inserted into the mother body.
Common problems in the use of plug-in terminal blocks
Various problems often occur during the use of terminal blocks.
Causes the problem of burning black
If the terminal is black, one of the possibilities is not necessarily burnt black, oxidation may also be black. So how to verify whether it is burnt black? The method we take is to wipe it off with your fingers. If it can be wiped off, like soot, it is a black substance formed by oxidation, which can only be wiped off with sandpaper or a file.
There are two possibilities: the terminal is loose and the contact resistance is too large, resulting in overheating; the terminal is not loose, but the circuit has overcurrent heating due to some unknown reason, such as the power supply voltage is too high, or the load is short-circuited.