What this MCB carries
The Siemens 5SY4315-7CV is a 3-pole miniature circuit breaker rated C1.6 A with a short-circuit breaking capacity Icu of 15 kA at 400 V AC.
Panel fit
Snap-on DIN rail mount, standard 3-module width for a 3-pole MCB. The 15 kA Icu at 400 V gives headroom for most industrial panel designs — no need to oversize the upstream MCCB for selectivity if the fault level stays under that threshold. Terminal capacity accepts up to 25 mm² conductor, typical for a 1.6 A branch circuit.