Screw terminal is a common electrical connector that uses the rotation of screws to tighten wires and achieve electrical connections. This wiring method is widely used in various electrical equipment, electronic products, and industrial control systems, especially in situations that require frequent replacement or maintenance.

characteristic:

Simple and reliable: The design of screw type terminal blocks is simple, and users can tighten the wires by manually rotating the screws, making the operation intuitive.

Strong versatility: Almost all standard wires can be connected using screw terminals, including solid and twisted wires.

Easy to inspect and maintain: As the wiring terminals are open, it is easy to check the quality of the connections and perform necessary maintenance or rewiring.

Cost effectiveness: Compared to other types of connectors, screw terminals are usually cost-effective and suitable for large-scale applications.

Structure:

The basic structure of screw type terminal blocks includes:

Wiring hole: a place for inserting wires.

Screws: Use rotation to tighten the wires and achieve electrical connections.

Insulator: usually made of plastic, used to isolate and protect screws and wires.

Base: Supports the entire wiring terminal and sometimes also serves to fix the wiring terminal.

usage method:

Prepare wires: Prepare wires of appropriate size according to the specifications of the terminal blocks, and peel off a certain length of insulation layer.

Insert the wire: Insert the exposed part of the wire into the wiring hole, ensuring that the wire is in contact with the bottom of the wiring hole.

Tighten the screw: Use a screwdriver to rotate the screw clockwise until the wire is firmly clamped.

Check the connection: Confirm that the wires are not loose and have good contact.

matters needing attention:

When using screw type terminal blocks, the following points should be noted:

Torque control: When tightening screws, it is important to control the torque properly. Over tightening may cause damage to the wires or screws, while over loosening may result in poor contact.

Wire selection: Ensure that the size of the wire used matches the terminal block to avoid loose connections or inability to insert.

Anti vibration measures: When used in vibration environments, additional anti vibration measures should be taken to prevent screws from loosening.

Insulation protection: Ensure that the insulation layer of the wire is intact to prevent exposed conductors from coming into contact with other metal components and causing short circuits.

Screw type terminal blocks have a wide range of applications in the field of electrical connections due to their simplicity, reliability, and economy. However, with the development of technology, screw free terminals (such as spring type terminals) have become increasingly popular in some applications due to their advantages of fast connection and tool free operation.