Introduction to connection terminals

Connection terminals are essential components in electrical and electronic systems that allow conductors or cables to be linked together, or with other electrical devices. Its main function is to guarantee a safe, reliable and efficient connection that facilitates the transmission of energy or signals, ensuring electrical continuity and adequate mechanical resistance.

These devices may vary in design, materials and fixing method depending on the type of installation, the nature of the conductor and environmental conditions. Connection terminals are essential in both domestic and industrial applications, and their correct selection and installation is key to the safety and optimal performance of any electrical system.

screw terminals

Screw terminals are one of the most common and oldest types of connection terminals. They consist of a clamp or metal plate that is fixed by means of a screw on the conductor, ensuring continuity through mechanical pressure. They are widely used in domestic and industrial electrical installations due to their simplicity and ease of maintenance.

This type of terminals allows a removable connection, which facilitates repairs or changes in the installation. However, they require adequate tightening to avoid loss of contact or heating due to poor connection, so they must be installed following rigorous technical procedures.

The manufacturing materials are usually copper or brass, coated or protected against corrosion, to guarantee a long useful life and resistance to the passage of electric current.

Compression or crimping terminals

Compression terminals are mainly used for large section cables and consist of a metal body where the conductor is inserted and fixed through a crimping process with special tools. This union is permanent and offers high mechanical and electrical resistance.