The SENTRON 5SQ2360-0KA20 is a 3-pole miniature circuit breaker (MCB) with a B tripping characteristic, rated 20 A at 400 V AC, 50 Hz. Rated for AC/DC circuits, overvoltage category 3, and energy limiting class 3, it provides fast fault clearance to limit let-through energy downstream.
Panel integration and physical fit
Occupies 3 width units on a DIN rail, installation depth 55 mm. IP20 finger-safe terminals. No neutral conductor switching — this is a 3-pole device for 3-phase line protection only. Verify the neutral bar is separate and rated for the application.