The Siemens SENTRON 5SY3013-7WM is a 1P+N miniature circuit breaker rated 13 A with a C-curve tripping characteristic and a 4.5 kA breaking capacity per EN 60898 at 230 V AC. It switches the neutral conductor, so it's the right choice for single-phase final circuits where you need overcurrent and short-circuit protection on the line side plus a switched neutral in one 18 mm wide package.
The C-curve means the magnetic trip fires at 5 to 10 times rated current — 65 to 130 A for this 13 A breaker. That's the standard protection for inductive loads like small motors, lighting ballasts, and transformer-fed circuits where inrush current would nuisance-trip a B-curve. The 1P+N configuration gives you overcurrent protection on the phase and a switched neutral that opens with the phase — required in some regional wiring codes for single-phase subcircuits. The 76 mm depth plus 70 mm installation depth means it sits flush in a distribution board without protruding past the enclosure depth.
Compliance documentation covers the usual bases: the breaker is designed to EN 60898 and carries IP20 protection with conductors connected.