Terminal blocks specifically refers to the series combination of electrical engineering wiring fixtures, the number of each row of terminal points is different, according to the needs of the engineering parameters and to determine its type.

With wiring of power electronics, where the screen connected equipment and offscreen equipment through specialized terminals, these terminals combined, then known as the terminal block.

The role of the terminal block is connected to screen devices and equipment outside the line, play a role in the transmission of signals (current and voltage). With terminal block makes wiring and beautiful, easy to maintain, mainly solid connection between long-distance lines, construction and easy maintenance.