What this part is and where it fits
The ABB S261-C16 is a DIN-rail miniature circuit breaker from the S260 series, rated for 16 A branch-circuit protection. It snaps onto standard 35 mm DIN rail inside a distribution board or control panel, occupying a single module width. The C characteristic curve means it trips at 5–10× rated current — suited for mixed resistive and moderate inductive loads where inrush is not severe.
