While applying the form separation process, metal or non-metal parts are used in order to prevent the transition between the sections. With using these parts, direct access of the user to live parts or materials such as circuit breakers is prevented. In practice, when the door is opened, we should not encounter an energized busbar. For the reliability of the compartments, they should be opened using a hand tool such as a key. In addition, the holes on the parts for which separation is provided must be large enough not to pass fingers.,

Form 2 class is the most basic partitioning class. It is the separation of busbars from functional units. There is no requirement for the external conductor connection points and functional units to be separated from each other. Devices and external ports can be located in the same compartment.