The Siemens 5SJ4213-7HG41 is a 2-pole miniature circuit breaker from the SENTRON 5SJ4 series, rated for 400 V AC and 60 V DC, with a C tripping characteristic.
DIN-rail fit and panel integration
Depth is 70 mm, so it clears a standard 80 mm enclosure backwall with 10 mm to spare for wiring.
What the C-curve means in practice
It's not for high-inrush loads (D-curve territory) nor purely resistive circuits (B-curve). Rated for 50 Hz supply.
Vibration resistance to 50 m/s² at 25–150 Hz and 60 m/s² at 35 Hz (4 sec) means it holds up on a machine frame or conveyor line. Rated for mechanical engineering and industry use per the manufacturer's suitability classification. EMC environment B (immunity not applicable) — no special filtering required for the breaker itself, but the load side may still need it.
