The ABB S804C-C125 is a 4-pole miniature circuit breaker from the S800C series, rated 125 A with a Trip Curve C characteristic. It mounts on DIN rail and carries a 15 kA interrupting rating at 230 V AC and 10 kA at 500 V DC.
DIN-rail mounting means it snaps into a standard 35 mm rail inside a panel or enclosure — no separate bracket or screw mount needed. The 4-pole format handles three-phase plus neutral in a single unit, keeping the layout tight.
