|
Nowadays most controls components are mounted on standard
35mm din rail which is in turn mounted on Control Panel Backplates. When
using DIN rail as a ground busbar, particular attention must be paid to the
short circuit properties of the rail. With the use of a DIN rail ground
(protective conductor) terminal block, the DIN rail itself can be used as
the grounding busbar. The following is an example of how the system works to
create a path to ground.
The ground terminal has a metal foot that bits into the DIN rail, the rail
is fastened to the enclosure, and the enclosure is connected to earth
ground. This system allows all control components and their ground
requirements to be placed on the same rail and in the same location (a
separate ground busbar is no longer required). The benefits of this include
reducing installation costs, saving panel space and allowing for quick and
easy trouble shooting
|
|
 |
