The Siemens 5SY4613-7CV is a 3-pole plus neutral miniature circuit breaker (MCB) with a C13 tripping characteristic and a rated ultimate short-circuit breaking capacity Icu of 15 kA at 400 V AC.
The 3P+N configuration (three protected poles plus a switched neutral) is standard for three-phase four-wire systems in IEC markets — the neutral pole opens and closes with the phases but does not carry an overload trip.
Panel integration context
Snap-on mounting to DIN rail EN 60715. The 3P+N width at 4 module spaces (72 mm at 18 mm/mod) is the standard footprint for this pole count — check the enclosure fill factor if the panel is already dense. The C13 rating at 15 kA SCCR covers most industrial panel sub-feed applications where the transformer or main breaker limits the fault current to that level.