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Terminal Blocks - Headers, Plugs and Sockets

Terminal blocks, otherwise referred to as headers, plugs and sockets, are versatile and widely used components that are used in many varied electronic and electrical applications. They can be found in any industry from aerospace applications to consumer electronics, and they are essential for anyone who uses any type of equipment containing electronics, automation or power systems.

Terminal blocks are elements that allow for the connection of two cables. This essentially bridges any gap between the two components, and allows current to transfer between them, and is necessary for proper circuit and system operations. Not only do they allow basic current transfer, but their compact design also allows them to save on space, cost and time.

Terminal blocks come in all shapes and sizes, and can have different types of heads to allow for an appropriate cable size. This versatility allows for them to be used almost anywhere, and in any capacity. The most popular types of terminal blocks include screw terminals, PC board connectors, spring contacts, safety terminal blocks and multi-conductor systems.

PC board connectors are widely used due to their low cost, fast installation and its simplicity. This type of terminal block does not require special tools, and is commonly used to terminate cables or strips of wires. Additionally, PC board connectors provide an IP67 rating in terms of dust and water protection, which can be very important in certain applications.

Screw terminals, otherwise referred to as ‘clamp’ terminals, are used for higher currents, as they require a screw, nut, or a clamp to secure its connection with the wires. This makes them ideal for high current applications, as they are extremely secure and reliable. They can even be incorporated in more intricate connections, such as those in multi-pin arrays and even around cable sheaths. This makes them useful for a number of different types of connections.

Spring contacts, also called quick-connects, are spring terminals that involve the use of a spring-loaded mechanism that is used to make an electrical connection. The spring acts as an expansion element, and the contact is pushed over a pin or terminal block. This type of connection is used regularly in a vast variety of applications.

Safety terminal blocks are primarily used in safety circuits. They have an integrated or additional safety element, such as a finger or a pin that prevents accidental contact with an unprotected conductor. With additional protection provided by the terminal blocks, systems can be safely used in accordance with safety regulations.

Multi-conductor terminal blocks are those that are used to connect several conductors. The conductors can be bundled together or can be individually placed into the terminals. This type of terminal blocks can range from simple SIP systems to more complex systems with more than 300 pins.

Terminal blocks provide electrical and electronic components with a secure and reliable connection, that can be used in a diverse range of applications. With so many options available, these types of connection blocks are a cost effective, time efficient, and reliable solution for people looking for a solution to their connection problem.

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