Rated 400 V AC and 60 V DC, this MCB handles standard 230/400 V three-phase distribution and low-voltage DC control circuits. The single-pole design switches the line only — no neutral switching, so wire it into the phase leg. The IP20 body (IP40 in the handle area) is fine inside a closed enclosure but not for washdown locations. Vibration resistance is specified at 50 m/s² over 25–150 Hz and 60 m/s² at 35 Hz, so it holds up in machinery with moderate vibration, like conveyors or pumps.
Integration and installation notes
Depth is 70 mm, which is standard for this class — it'll clear a 100 mm enclosure backplate. The sealable design lets you lock the handle position for lockout/tagout compliance without adding an external hasp.
Designed for mechanical engineering and industrial applications per the suitability listing. In a typical panel, it protects a lighting circuit, a small control transformer primary, or a PLC power supply feed. The B-curve keeps it from tripping on the short inrush of a 50 VA control transformer, but if you're feeding motor starters, you'd want a C- or D-curve instead.