The BMXXBP1600 is the 16-slot backplane for the Modicon X80 rack, carrying bus X for I/O modules, controllers, and communication interfaces. It mounts on a panel or mounting plate via six M5/M6 screws, and its 634.6 mm width sets the minimum enclosure depth — factor that into your gland plate and wiring duct layout if you're building a new panel.
Width 634.6 mm is the biggest single dimension — this is a wide footprint, so make sure your backpanel has the clearance. Depth is only 19 mm, meaning the bus board sits thin against the mounting surface. IP20 enclosure rating: no water or dust ingress protection, so it lives inside a sealed cabinet. Power draw is negligible at 0.17 W — no PSU derating worry. Standards compliance runs deep: EN/IEC 61131-2 (PLC hardware), 61010-2-201 (control equipment safety), UL 61010-2-201, CSA C22.2, IACS, EN/IEC 61000-6-5 (industrial EMC), and EN/IEC 61850-3 (substation environments). That means it passes EMC testing for both general industrial and utility power-grid locations — one less risk to sign off on if you're going into a distribution yard or a harsh electrical room.
The BMXXBP1600 is current production — active lifecycle status, no NRND or EOL flag. No substitute or successor is listed, so if this is your rack, you buy this exact part.
Fix with six M5 or M6 screws — four corners, two midpoints — on a flat panel or mounting plate. The 634.6 mm span requires a flat surface; leave two end slots free for power supplies or controller modules. Electrical connection is via a single XBE expansion module connector — no daisy chain on this backplane, it's the main bus spine. Ambient operating temperature 0 to 60 °C, humidity 10–95% non-condensing.