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.
|PR1||Slotted “G” Rail||2m|
|PR1.Z2||Un-Slotted “G” Rail||2m|
|PR2||Slotted micro din rail||2m|
|PR3.Z2||Un-Slotted top hat din rail||2m|
|PR30||Slotted top hat din rail 5mm slot||2m|
|PR30/6||Slotted top hat din rail 6mm slot||2m|
|PR5||Deep section top hat rail||2m|