DO YOU KNOW PLUG-IN TERMINALS?

Plug-in series terminal blocks are used to achieve electrical connection, and terminals are used for wiring. Terminalblocks are usually used in distribution boxes to facilitate wiring, and the power they bear is generally small. Let's look at the specifications and functions of plug-in terminal blocks together.

Specifications of plug-in terminal blocks

The plug-in series of terminal blocks are made by plugging and unplugging two parts. One part presses the wire tightly and then inserts it into the other part. This part is soldered to the PCB. This is connected to the bottom mechanical principle, and this anti-vibration design ensures the long-term air-tight connection of the product and the reliability of the finished product.

Mounting ears can be added to the two ends of the socket. The mounting ears can largely protect the tabs and prevent the poor arrangement of the tabs. At the same time, this socket design can ensure that the socket can be correctly inserted into the main body. The socket can also have assembly buckles and locking buckles. The assembly buckle can be more firmly fixed to the PCB board, and the locking buckle can lock the main body and the socket after the installation is completed. A variety of socket designs can be used with different body insertion methods.

Common problems with plug-in terminal blocks

Various problems often occur during the use of the terminal.

Causes burning problems

If the terminals are black, one of the possibilities is not necessarily burning, and oxidation may be black. So how to verify if it is burnt? The method we use is to wipe it with our fingers. If it can be wiped off, like soot, it is a black substance formed by oxidation. It must be polished with sandpaper or a file.

Cause high temperatures problems

There are two possibilities: the terminal is loose and the contact resistance is too large, which causes overheating; the terminal is not loose, but the circuit is overheated for some unknown reason, such as the power supply voltage is too high, or the load is shorted.

1. The voltage is too high. It can be checked from the source, the secondary voltage of the transformer-the voltage in the distribution box-the voltage of each electrical equipment.

2. Ground fault. It can also be checked from the transformer and then grounded to the distribution box. The ground should be grounded, and normal phase wires should be grounded. You can use an insulation meter or a shaking meter to measure when power is off, and measure in sections. Try to measure only the power supply and distribution lines such as cables, wires, circuit breakers, switches, etc., if it is difficult to segment, unplug the weak electrical equipment, Fuse for sensing equipment.

We can provide you with various types of plug-in series terminal blocks, as well as terminal connector, cable connector, electrical wire, cable, electrical cable, power cable, etc. Please contact us for more detailed quotations and information.