The Siemens 5SY3013-7KV26 is a 1+N-pole miniature circuit breaker (MCB) with a C-curve trip characteristic, rated 13 A at 230 V and a 4.5 kA breaking capacity.
The C-curve (13 A) trips between 5× and 10× rated current, making it suited for moderate inrush loads like lighting banks, small motor feeders, and control transformers. The 4.5 kA breaking capacity at 230 V covers the fault level typical of most commercial and light industrial final circuits. Neutral-left orientation matches panel layouts where the incoming neutral bus is on the left side of the DIN rail.