Integrator's note — 5SQ2570-0KA63
The SENTRON 5SQ2570-0KA63 is a 2-pole miniature circuit breaker wired as 1P+N — it switches the phase and switches the neutral, but only the phase is protected. Breaking capacity is 3 kA under both EN 60898 and IEC 60947-2, so it's sized for residential or light commercial sub-distribution, not high-fault industrial mains. Installation depth is 55 mm and it occupies 2 width units (36 mm) on the DIN rail.
The C-curve means magnetic trip occurs at 5–10× In (315–630 A), which suits loads with a short inrush peak like small motors, transformers, or capacitor banks. Neutral conductor switching (1P+N) means the neutral is opened and closed with the phase, which is required in some regional wiring codes for single-phase final circuits.
Panel integration
At 2 width units (36 mm) and 55 mm installation depth, it leaves room for adjacent breakers or busbar feeders in a standard distribution board.