It switches both phase and neutral, so a single 2-module unit covers the branch circuit without a separate neutral disconnect — useful in panels where space is tight and you want to isolate the neutral alongside the line conductor. Rated 230 V AC with a 10 kA breaking capacity per EN 60898, and 5 kA per UL 1077 and CSA C22.2 No. 235. That dual rating means it qualifies for IEC-based distribution boards and for UL 508A industrial control panels — one SKU covers both standards if your panel shop ships to North America and Europe. C-curve (5–10× In) trips fast on motor inrush or transformer magnetizing current without nuisance tripping on moderate overloads — the standard choice for mixed resistive and light inductive loads in mechanical engineering and industry panels.
DC rating and single-phase note
Maximum DC voltage is 72 V. For single-phase AC operation the rated voltage steps up to 250 V.
Depth is 76 mm overall, installation depth 70 mm — the extra 6 mm is the front projection of the toggle and terminal covers. Width is 36 mm (2 width units at 18 mm each), which is standard for a 1P+N MCB in a Siemens SENTRON sub-distribution board. Touch protection is built in — no exposed live metal when wired.
Neutral conductor switching is integral — the neutral pole opens and closes with the phase pole, so the breaker can be used as the main disconnect for a single-phase sub-feed where local codes require neutral isolation.