The Siemens Betagard 5SL7463-7RC is a 4-pole miniature circuit breaker rated 63 A with a C tripping characteristic, designed for industrial panel applications at 415 V AC. It carries a 10 kA breaking capacity under both EN 60898 and IEC 60947-2, so it handles moderate fault levels typical of distribution sub-mains without cascading upstream.
At 63 A per pole, this breaker suits sub-feed or feeder duty in a 4-wire three-phase panel. Breaking capacity of 10 kA per EN 60898 and IEC 60947-2 is the same figure under both standards, so you get consistent fault clearing whether the local code references the IEC household standard or the industrial standard. The 415 V AC rated supply voltage matches common three-phase line-to-line voltages in European and many Asian industrial grids. The 18 mm width per pole (4 MW total) is the standard modular pitch, so it clips onto DIN rail and occupies four 18 mm slots.