CB20720407

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Terminal Blocks - Barrier Blocks

CB20720407 Application Field and Working Principle

Barrier blocks are terminal blocks with an additional insulating barrier between every two successive contact elements. This prevents electric arcs between the adjacent contacts and slows down the spread of fire in case of a short circuit. The CB20720407 Barrier Block is a sturdy 12-14 AWG and rated up to 600V. It serves in a variety of applications including industrial automation and control systems, PLC control systems, household appliances, etc. in the field of electronics, electrical, automotive, medicine, etc. Combined with Z-BUS® Technology, the CB20720407 has the capability to connect up to 150A per connection.

The CB20720407 Barrier Block consists of several elements: First, there is the isolation barrier, which separates the terminal pins. The isolation barrier is made of heavy-duty and flame retardant polycarbonate material and typically wraps the entire surface of the terminal block. Second, there is the contact area, where the terminal pins make contact. The contact area is composed of fine silver plated brass and is designed to minimize electric resistance. Finally, the insulation sleeve and insulating bar provide support and maintain the electrical isolation between the two sides of the terminal block.

The working principle of the CB20720407 Barrier Block is fairly simple. When the terminal pins are pushed through the isolation barrier, they make contact with the contact area. This contact allows current to flow between the two terminal pins. The contact area is designed to provide a strong connection between the two pins and minimize electric resistance. The insulation sleeves and insulating bar keep the two sides of the terminal block electrically isolated.

In addition, the CB20720407 Barrier Block is equipped with several safety features that help to prevent electric arcs between adjacent contacts and reduce the risk of fire in case of a short circuit. These features include a self-extinguishing barrier material, shock-resistant design, protective insulation coating, and gas-proof seal. These features all work together to ensure a safe and reliable connection between the two terminal pins.

The CB20720407 Barrier Block is a versatile and reliable terminal block that is well-suited for a variety of applications, including industrial automation and control systems, PLC control systems, household appliances, etc. With its robust design and reliable safety features, the CB20720407 Barrier Block is an excellent choice for all of your wiring needs.

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