SENTRON 5SQ2370-0KA01 — 3-pole C-curve MCB, 1 A, 400 V AC
The SENTRON 5SQ2370-0KA01 is a 3-pole miniature circuit breaker with C-curve tripping characteristic, rated 1 A at 400 V AC and a breaking capacity of 3 kA per EN 60898. The C-curve (energy limiting class 3) means it trips between 5 and 10 times rated current — suited for protecting general-purpose circuits with moderate inrush, like lighting banks or small transformer loads. The 3 kA SCCR at 400 V AC is the maximum fault current it can safely interrupt under EN 60898; verify it coordinates with the upstream protective device in your panel. EN 60898 certifies its performance for household and similar installations.
Panel integration
The 5SQ2370-0KA01 occupies 3 width units on a DIN rail, with an installation depth of 55 mm. IP20 finger-safe terminals suit enclosed panel mounting.