The 6 A rated current is the continuous load it can carry under normal conditions; the 4.5 kA breaking capacity (per EN 60898) is the maximum fault current it can safely interrupt at 230 V AC. The neutral pole is switched but not protected — only the phase pole has the thermal-magnetic trip. The neutral conductor switching function is built in, so no separate neutral link is needed downstream.
Snaps onto standard DIN rail — the fastening method is standard rail, mounting position any. At 18 mm wide (1 MW), it occupies one position in a distribution board. IP20 with connected conductors. Touch protection is built in (finger-safe terminals per the product feature), and the breaker is sealable for anti-tamper applications. Vibration resistance tested per IEC 60068-2-6, so it holds up on machinery or in mobile installations.