Terminal block refers specifically to: a series of combined wiring fixtures in electrical engineering. The number of terminal points in each row is different, and the model can be determined according to the needs of engineering technical parameters. The application of the terminal block is mainly reflected in: in the power electronic distribution wiring, when the equipment inside the screen is connected with the equipment outside the screen, it must pass through some special wiring terminals. The combination of these wiring terminals is called a terminal block. Terminals are an accessory product used to realize electrical connections, and are industrially divided into the category of connectors. As the degree of industrial automation becomes higher and the requirements for industrial control become stricter and more precise, the amount of wiring terminals is gradually increasing. With the development of the electronics industry, the use range of terminal blocks is increasing, and there are more and more types. In addition to PCB terminals, the most widely used terminals include hardware terminals, nut terminals, spring terminals, and so on. Wireframe can effectively do this. The wire frame is quenched hardened steel and galvanized passivated, and the high torque steel screw press can be firmly connected. The flexibility of conductive tin-plated lead alloy ensures tightness, low resistance and a fixed connection to the wire.
The following advantages of the wiring system are welcomed by users and are widely used:
The contact surface is large, and the contact pressure is large, and the horizontal contact can be arbitrary.
With self-locking, anti-vibration and anti-loose functions.
The test jack can be installed without maintenance.
The contact point is absolutely airtight and corrosion resistant.
Multi-stranded wires are allowed to have no crimped ends and can be connected directly.
Easy to use
Widely used in contact pressure all over the world.
In the terminal block, contact force is one of the basic elements.
Low voltage drop
The magnitude of the voltage drop at the contact point is also one of the criteria for judging the quality of the terminal block. Even if a small distance of force is applied to the screw, the voltage drop is still far below the limit required by VDE 0611. At the same time, the applied torque is in a wide range.
As the housing changes, the voltage drop is almost constant. Therefore, although the torque used by different operators is different, it will not affect the quality of the connection. This is another proof of the reliability of Weidmüller's crimping frame.
