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Terminal Blocks - Barrier Blocks

Barrier blocks, also known as terminal blocks, are widely used to provide reliable, easy-to-use electrical connection of two wires. These blocks consist of two separately insulated terminals into which two wires are clamped. The terminals themselves are typically held together within a plastic or metal housing. Barrier blocks range in size from less than an inch to several feet long. The most common type of barrier block used in industrial applications is the 0387290670 barrier block.

Application Field

Barrier blocks are used in a variety of industries, from robotics and circuit boards to industrial HVAC control systems. In robotics, they are used to quickly connect control wires between sensors and actuators, such as motors. In circuit boards and HVAC control systems, they are used to connect components to the system’s power supply. Barrier blocks offer a cost effective and space efficient way to connect wiring and components, which is why they are so widely used in these industries.

Working Principle

Barrier blocks are simple devices that use a simple mechanical connection to provide electrical connection between two wires. When the two terminals of the block are clamped together, a spring-loaded mechanism holds them in place. This creates a tight connection that is resistant to vibration and shock. The terminals themselves are made of steel, brass, or plastic, depending on the application.

Barrier blocks also contain some insulation material, such as glass-filled nylon, to protect users from any shocks that could be caused by the wires connecting two terminals. To ensure a safe connection, the terminals should be tightened to the point where the insulation material is compressed rather than stretched.

Barrier blocks can be used for various voltage levels, depending on the specific type of block. For example, many industrial grade blocks are rated for up to 600 volts. This makes them suitable for use in applications that require higher voltage levels, such as in some HVAC control systems.

Barrier blocks provide a reliable, cost-effective solution for connecting two wires. They are easy to install and require minimal maintenance. Plus, they can be used in a wide variety of applications, making them a popular choice among engineers and technicians.

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