0387206903

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Terminal Blocks - Barrier Blocks

Terminal blocks, also known as barrier blocks, electrical connection blocks and panel mounted terminal blocks, are a type of electrical connector with multiple tabulated entry points. They are divided into independent sections or blocks, without affecting the sections or blocks adjacent to them. Each block is either male or female and comes in various sizes dictated by the number of tabulated entry points. Terminal blocks are used in a variety of applications and available in a range of materials, including plastic and brass. Both types of terminal blocks have different configurations, materials and mechanisms of operation.

0387206903 Application Field and Working Principle

Terminal blocks used in industrial applications are normally rated by their maximum current-carrying capacity, the dielectric voltage rating, and the number of contacts. For wiring applications within a control panel, these types of terminal blocks can have a maximum voltage rating of up to 600 volts. The maximum current-carrying capacity ranges from 40 to 600 amperes, depending on the type of block being used. A typical terminal block may be configured with one, two, or three Poles and with either single or multi-pole configurations.

The working principle of a terminal block is the same for both male and female types. An electrical current is first supplied by a power source, typically a battery. This current is then conducted by a conducting conductor, often made of copper or brass, and then split into multiple sections or blocks. Each section contains a contact point associated with a specific line, such as a grounding line, a power line, or even a signal line. A wire is then attached to the contact point via a terminal screw, which is then tightened down to ensure a secure connection. This connection allows electrical current to travel through the terminal block to the specific line, allowing for a power transfer to another device or system.

Conclusion

Terminal blocks, also known as barrier blocks, electrical connection blocks and panel mounted terminal blocks are widely utilized in a variety of industries for a variety of applications. The type of block, its voltage rating and current-carrying capacity all depend on the type of application and the installation environment. The working principle of a terminal block involves conducting an electrical current to the block, then into the contact point before traveling across the electrical system in need of power transfer or communication.

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