B&R Industrial Automation X20BB82 Bus Base 2 Expansion Slots

The X20BB82 is a B&R X20 bus base featuring two expansion slots, enabling two X20 add-on modules (such as IF or HB) to be mounted alongside a base module (BC, HB, etc.) and a supply module, with left and right end cover plates included in delivery, making it a compact backplane solution for expanding an X20 system. With a 87.5 mm pitch and compatibility with X20 base modules, the X20BB82 provides a dedicated backplane footprint for two add-on modules while maintaining standard spacing for surrounding components, supporting either horizontal or vertical installation depending on enclosure and mounting orientation. The X20BB82 is rated IP20 and supports operation from 0°C to +55°C in horizontal installations (0°C to +50°C in vertical installations) with 5 to 95% non-condensing humidity, aligning with typical industrial environment requirements for exposed backplanes; it is intended for use within the X20 System alongside X20 power supplies.