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Terminal blocks – wire to board system applications and its working principle has been used widely in different kinds of industries. This kind of application has become an important part of modern industrial automation, as it provides connection and protection to the electrical connections.Terminal blocks are made up of a terminal, which provides a connection point for wire, and a contact block or a base, which acts as an insulating medium between the wiring and the terminal. The contact blocks and base are usually fixed to a chassis and connected to the circuit breaker, fuse, or relay, which disconnects the connection when necessary.The primary purpose of a terminal block is to provide mechanical and electrical separation between conductors in a circuit, making it easier to manage and repair the wiring in a system. This also reduces the wiring related problems, as it eliminates the need for conductor to conductor contact.In the wire to board terminal blocks, the wires are connected to the terminal blocks in a specific manner. Generally, two different types of connectors are used for this purpose, including clamped and crimp. In the clamped type, a copper, brass or stainless steel strip or wire is inserted between the contact and base. The terminals are then tightened with screws or bolts, and the wires are connected to each terminal by crimping or soldering.In crimp type terminals, the wires are inserted directly into the contact block or base, and later crimped into place using a crimping tool or press. Both types of connections provide reliable and permanent connection.The usage of terminal blocks in wire to board systems primarily depends on the electrical properties of the application. The selection of the terminal blocks can vary depending on the application and the electrical design of the system. For example, if the operating voltage of the system is higher than expected, high voltage rated terminal blocks must be chosen for safety and reliability.The industrial applications of terminal blocks are not limited to wire to board systems. In other fields such as instrumentation and control, it is also used for switching, grounding and connecting signals.The working principle of the terminal blocks is that when a wire or conductor contacts the contact block, a connection is established, which provides the passage for the flow of current. Depending on the type of connection, the current either flows through critical points for reliable and secure connection, or the current flows through both contact and terminal block for uninterrupted passage of signals, which reduces power losses and signal distortion.The uses of terminal blocks are diversified across industrial, automotive, marine and aeronautical industries. With its multi-functional advantages, this kind of application and its working principle can be used in a wide range of fields and applications, providing reliable and efficient electric connections.