The Siemens 5SL4210-7 is a SENTRON 5SL4 series miniature circuit breaker — 2-pole, C-curve trip characteristic, rated 10 A at 400 V AC. It carries a 10 kA breaking capacity under both EN 60898 and IEC 60947-2, which means it can safely interrupt fault currents up to that level in residential or infrastructure distribution boards.
Snaps onto standard 35 mm DIN rail; occupies 2 modular width units (36 mm). Mounting position is unrestricted, so it can be laid flat or vertical inside a shallow gland plate.
