200-BPN from ABB is a backplane for Central System units. Each backplane has two slots and the Central System units are held in place with two snap locks. The backplane is designed to be mounted onto a DIN rail and can be secured by an additional screw if used in environments with severe mechanical stress. It can be equipped with a maximum four 200-BPP screw terminal blocks (not included), two for each Central System unit. Two eight-position rotary mechanical code keys prevent the inserted unit from damage if it is inserted into the wrong backplane slot.
