The Siemens 5SL3506-6 is a 1+N-pole miniature circuit breaker from the SENTRON 5SL series, rated 6 A with a B-curve trip characteristic. It breaks faults up to 4.5 kA per EN 60898 and IEC 60947-2, which covers the majority of residential and light-commercial distribution boards. The 1+N configuration switches the line and switches the neutral, so it's suited for single-phase final circuits where neutral isolation is required.
The 6 A B-curve trips between 3 and 5 times rated current — typical for lighting and socket-outlet circuits where inrush is low. The 2-module-width (36 mm) body snaps onto standard DIN rail, and the IP20 rating with connected conductors means it's protected against finger contact once wired — fine for enclosed distribution boards, not for wet environments.