Siemens SENTRON 5SQ2560-0KA10 — 2-pole 1P+N MCB, B-curve, 10 A
The Siemens SENTRON 5SQ2560-0KA10 is a 2-pole miniature circuit breaker wired as 1P+N — it switches the line conductor and switches the neutral, but does not protect the neutral. Rated 10 A with a B-curve tripping characteristic, so it trips between 3 and 5 times rated current for fast clearing on short circuits while tolerating brief inrush from resistive loads like lighting or heating elements. Breaking capacity is 3 kA per EN 60898 at 240 V AC, 50 Hz. Snaps onto DIN rail, occupies 2 width units (about 36 mm). Installation depth is 55 mm.