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Terminal Blocks - Barrier Blocks

Barrier blocks are a type of electrical terminal block used in general circuit switching and protection applications in conjunction with fuse links. Barrier blocks are connected to electric conductors by screws, and each barrier block contains one or more removable fuse links. Depending on the type of barrier block being used, the fuse links may be formed into one or two different sides for separate conductors.

Barrier blocks provide a way to ensure safety in electric systems. When an over-current is detected, the fuse link contained in the barrier block is broken and the circuit is interrupted, thus providing a safer environment. Since the fuse links are removable, they can be easily replaced when an over-current is detected. Furthermore, the size of the fuse link in a barrier block can be adjusted to suit the current load.

The use of barrier blocks is not limited to electric system protection. They can also be used in many different applications such as signal and control wiring. Barrier blocks are ideal for establishing connections between components as they provide a clearly visible, easy-to-inspect, and easy-to-maintain terminal area. Additionally, the screw-fixed connections provided by barrier blocks are highly secured and provide reliable electrical connections.

Barrier blocks are also commonly used in industrial and military applications due to their high degree of safety and reliability. For example, mining operations are often directly connected to the grid using barrier blocks as the safety of miners is of the utmost importance. In military operations, barrier blocks are used to separate the DC sources from AC supplies thus providing an extra layer of protection.

Barrier blocks come in a variety of forms such as clamps, plug-ins, and fork-style plugs. Additionally, they can be used in combination with other types of connection devices such as terminal blocks, power connectors, terminal strips, and adaptors. Furthermore, barrier blocks can be configured in multiple ways, with the two most common being a series of blocks where the fuse links are connected in parallel on one side, or a single block where both fuse links are connected in parallel.

The cost of barrier blocks varies depending on the type of block being used, the number of fuse links required, and the complexity of the configuration. Barrier blocks are relatively inexpensive when compared to other electrical components and are typically available in a range sizes and configurations. For the vast majority of applications, barrier blocks are an ideal choice to provide reliable and safe electrical connections.

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