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Terminal blocks, also known as terminal boards, euro-style terminal blocks, or simply wiring blocks, are a type of electrical connector which provides a connection point for two or more wires. They are used in a wide variety of applications, from industrial machinery to consumer electronics. In recent years, they have found a new application in the wired-in-place systems of distributed lighting controls, providing an easily reconfigurable connection point for power, networking, and communication signals.

Terminal blocks consist of two metal plates which are held together by a screw or a rivet. The two metal plates are electrically connected so that when a wire is placed between them, an electrical connection is made. The two metal plates are often protected by a molded plastic cover, which helps to protect the connection point from dust and dirt. The plastic cover also makes it easier to identify the terminal block\'s function.

Terminal blocks come in a variety of configurations and sizes, ranging from simple single-pole blocks to complex multi-pole models. Connector blocks are available in both horizontal and vertical orientations, depending on the application. For larger numbers of connections, terminal strips can be used, which reduce the space between individual blocks, allowing more wires to fit within the same area. In addition, some terminal blocks include “floating” contacts which can be used to temporarily link two or more blocks together.

Terminal blocks are typically used in applications where low-voltage/low-current signals need to be connected and disconnected quickly and safely. They are a cost-effective, easily deployable solution for connecting many different types of electrical equipment. Examples include connecting electrical components on audio equipment, connecting wires in security systems, connecting wires to motors in industrial equipment and connecting components in computer systems.

The working principle of a terminal block is based on the concept of electrical grounding. In order for the electrical signal to flow correctly, it must be connected to an electrical ground. The two metal plates of the terminal block act as a connection point and provide a path for the electrical current to flow between them. The connection is made more secure by using screws or rivets to hold the two plates together. The electrical signals can then flow safely and securely from one component to another.

Terminal blocks are an integral part of electronic systems and can be used in a variety of applications which require low-voltage/low-current signals. They can be used to connect two or more electrical components, provide a safe connection point, and simplify the wiring process. In addition, they are a cost-effective solution for connecting a variety of electrical equipment, making them an important component of many distributed lighting control systems.

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