The Siemens 5SY4410-7CV is a 4-pole miniature circuit breaker rated for 10 A with a C-trip curve and an interrupting capacity of 15 kA at 400 V.
Snap-on DIN rail mount, standard for panel integration. Four-pole footprint — occupies 4 module widths (72 mm on a standard DIN rail). Rated for 400 V line-to-line, so it fits three-phase distribution boards with a neutral pole.