Product Description:

B & R Automation manufactures the 7BP708.0 backplane as part of the System 2003 Controllers series. This backplane is a passive carrier that brings power and bus traces to as many as eight plug-in logic, motion, or communication modules, allowing decentralized control stations to be assembled inside a control panel. By providing a unified mechanical and electrical interface, the unit simplifies the expansion of industrial automation tasks such as packaging lines, material handling cells, and process skids.

The carrier depth of 23 mm keeps the assembly slim so it fits between the cabinet door and wiring duct in shallow enclosures, while a body height of 115 mm aligns its card slots with neighboring System 2003 components. The frame is machined from aluminum, which gives it moderate weight and good thermal conductivity to draw heat away from inserted electronics, and a span width of 620.5 mm accommodates eight numbered connectors without interfering with adjacent rail devices. Installation on a EN 60715 (TH35-7.5) DIN rail allows the backplane to share mounting infrastructure with breakers, relays, and terminals, and the eight-slot layout allows CPU, power supply, and specialty I/O modules to be combined in one segment without separate sub-racks.

For field assembly, the top edge hooks over the rail before the frame is secured using the hang-and-screw-in-place method, which avoids long sliding movement that could damage bus contacts. Once fastened, the board locks to the rail through integrated mounting mechanics, so no external clips are required. Protective end pieces on the left and right sides cap the bus conductors and help prevent module drift under vibration. Even with terminal screws fitted, the clearance added to the overall width is only 8.5 mm, which helps preserve space for wiring channels and ventilation paths inside the cabinet.