The Siemens 5SJ6320-6KS is a SENTRON 5SJ6-series miniature circuit breaker — a 3-pole, B-curve device rated 20 A with a 6 kA breaking capacity per both EN 60898 and IEC 60947-2. The 20 A rating at 400 V AC three-phase means each pole carries 20 A continuously. Power loss per pole is 2.2 W in hot operating state.
Mounting and integration — DIN-rail fit and panel constraints
Screwless outgoing terminals speed up wiring on a production line: strip to the recommended length, push the conductor in, done. The 3-pole design means a single unit handles three-phase circuits — no ganging of single-pole breakers needed.