Nowadays, there are multiple connection modes for terminal blocks, among which screw connection and direct plug-in connection are commonly used. What is the difference between the two? The following is a detailed analysis of Hengzhuneng!

Differences between screw wiring and in-line wiring of terminal blocks

Screw wiring: this wiring mode is low in cost and simple in operation. When the screw is screwed, push the gasket close to the wire until reliable connection is completed. However, it is necessary to pay attention to the maximum and minimum cross sections of the conductor and the maximum tightening torque allowed for screws of different specifications.

In line connection: Compared with screw connection, it saves time and space. When using, a single hard wire or a flexible wire with a tubular end can be simply inserted into the connection point, and the wire can be removed by pushing the button on the product shell.

Precautions for connection of terminal block and wire

1. When the conductor has multiple strands of wire core, it is necessary to twist the wire head first, which is connected with the terminal block;

2. The phase of the terminal block and the phase sequence of the conductor shall be distinguished before connection;

3. The steps of removing oxide layer are required for special material wires such as aluminum core and aluminum terminal blocks;

4. When large section aluminum conductor is connected with copper terminal block, copper aluminum transition joint is used;

5. The wiring terminal shall be kept at a certain distance from the conductor insulation layer;

6. The connection terminal and flexible conductor shall not be loose, broken or exposed;

7. The connection between the terminal block and the wire head shall be smooth and firm to reduce the contact resistance;

Summary, the above is the difference between the screw connection of the terminal block and the direct plug-in connection. Of course, the connection mode of the terminal block and the wire also changes with user needs, use scenarios, environmental conditions and other factors. Pay attention to the connection!