The Schneider Electric A9XPC848 is an Acti9 comb busbar rated for 80 A at 40 °C and 230/400 V AC 50/60 Hz, compliant with EN/IEC 61439-1. It distributes 3L+N across 48 modules in a horizontal mount, with an incomer accepting 1 way 4P and the outgoer providing 44 ways N+L. The connection pitch is 18 mm at the incomer, 9 mm between phase and neutral on the outgoer, and 18 mm between phases.
The 230/400 V AC rating covers both phase-to-neutral and phase-to-phase distribution in a 3P+N system, which is the typical split for residential and light commercial Acti9 panels. The 48-module length in 18 mm increments matches the standard DIN-rail module pitch — plan your breaker layout to fill the busbar within its rated current; unused taps are cuttable.