multilevel practical spring terminal make writing more practical,reduce the installation costs and speed the writing.panels which exit switch line  &lightening,provide phase-neutral-earth connection in one terminal.are ideal for usage in industries where motors are working a lot,because of more practical wiring.provide individual cross connections for each layer.Group marking carrier is used to proviide more visual marking in base layer.Special marking solutions for each cross section can be provided by thermal printing and plotter labeling.