The 1P+N format switches the line conductor and provides neutral isolation — common in single-phase final subcircuits in European panel builds. The 15 kA Icu at 400 V is the ultimate breaking capacity — the breaker can interrupt one fault at that level and still hold voltage afterward (though it may need replacement after the event).
Panel integration
Snap-on DIN rail mounting, standard 1P+N module width. Busbar compatible via the comb-bridge slots on the line side. The neutral terminal is on the right-hand pole; verify the busbar pitch matches your distribution block before wiring.