The ABB S803C-K16 is a 3-pole miniature circuit breaker from the S800C series, rated 16 A with a Trip Curve K characteristic. It mounts on a standard DIN rail and is rated for 230 VAC with a 15 kA interrupting capacity, plus 10 kA on DC circuits.
The 3-pole format covers three-phase circuits; the K curve handles motor starting currents and transformer inrush without nuisance tripping, while still providing short-circuit protection at 15 kA (AC) or 10 kA (DC).
