0387298012

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Terminal Blocks - Barrier Blocks

0387298012, better known as terminal blocks, are electrical connection devices designed to mechanically and electrically connect multiple wires, cables and printed circuit boards. As their name implies, terminal blocks provide multiple terminals to allow wires to be quickly and securely connected together through a variety of connection methods. Amongst the most common types of terminal blocks are barrier blocks, and this article will focus on discussing the application field and working principle of this product.

Application Field

Terminal blocks are utilised in a wide range of applications, ranging from machines, robotics and other industrial control systems to consumer electronics, automotive components and home appliances. Barrier blocks, by their nature, connect the circuits within a panel to a power source, enabling the control of the overall system. As such, they are particularly well suited to be used in the fields of instrumentation, automation, aerospace engineering, medical equipment, communications systems and power distribution systems. Depending on their configuration, barrier blocks can be used for the DC voltage supply of low voltage devices, or to protect higher voltage circuits from electrical noise and interference.

Working Principle

Barrier blocks are composed of two parts - the barrier and the screw. The barrier is composed of two rows of slots, usually of the same size, that contains two rows of metal strips or conductive pins. The bottom of the metal strips are firmly connected to the two terminals located on the side of the barrier. To make the electrical connection on both sides, a screw is inserted into one of the slots in the barrier. When the screw is turned, it will be firmly pressed against the two metal strips/pins, thus securely connecting them to the two terminals. A metal washer and nut may be secured onto the screw in order to further secure the connections.

The advantage of using barrier blocks is that the screw will remain firmly in place even after repeated vibration or shocks. As a result, it is often used for long-term wiring connection and/or for connections in areas that require long-term usage and stability in environments with vibration/shocks. In addition, due to the design of the barrier, it can also protect against accidental short circuits occurring between power connections and control connections.

Conclusion

In conclusion, terminal blocks, especially the barrier type, are highly versatile and reliable electrical connection devices used in a variety of applications. They provide an effective and secure connection between terminals, while also being highly durable and resistant to vibration/shock. Their size, shape and configuration make them particularly well suited for use in instrumentation, automation, aerospace engineering, medical equipment, communications systems and power distribution systems.

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