0387205108

Terminal Blocks - Barrier Blocks

0387205108 Application Field and Working Principle

A terminal block is an industrial grade electrical connection device designed to hold multiple conductors in a single enclosure. Additionally, a barrier block can also provide mechanical separation between two levels of terminals. Terminal blocks and barrier blocks are available in various sizes, styles, and shapes, being used in a wide array of electrical circuits.

Application Field

Terminal and barrier blocks can be used in any number of different applications because of their rugged design and minimal contact resistance. They are often used in control panels, electric motors, and in industrial environments. Terminal blocks and barrier blocks are available with different ratings, for either higher or lower current applications, and can even be rated to handle high-voltage. The principle behind their design is quite simple; an array of connected terminals that can accept multiple connections, with the mechanical barrier providing insulation and contact protection.

Working Principle

Terminal blocks and barrier blocks work in a similar fashion to plain, single-post terminals, with conductors inserted at each of the terminal points. The difference lies in the construction of the terminal block and barrier block; the terminals are attached to an insulated base, while the conductors are held in place by a separate section of the terminal block assembly, the mounting and barrier piece. This barrier provides excellent contact protection against corrosion and accidental short circuits. As well as providing protection from electrical interference, the barrier blocks also provide an organized wiring system with a reduced number of contacts.

Terminal blocks and barrier blocks are designed to be easy to use and maintain in any environment. They provide the typical user with the highest level of electrical and mechanical integrity, while simultaneously reducing the amount of wiring. Additionally, terminal blocks and barrier blocks save time and cost in many industrial applications, as they reduce the installation time of multiple-conductor wiring assembly.