The S203-C16 is a 3-pole miniature circuit breaker rated 16 A with a Trip Curve C characteristic, meaning it trips between 5 and 10 times rated current — the standard choice for protecting general-purpose loads like lighting, socket outlets, and small motor circuits where moderate inrush is expected.
The 3-pole footprint matches the ABB S200 series, so busbar bridges and aux contact add-ons carry over without rework.
