The Siemens SENTRON 5SL6108-6CC is a 1-pole miniature circuit breaker (MCB) with a B tripping characteristic, rated 8 A at 400 V AC. The B curve means it trips between 3 and 5 times rated current (24–40 A), so it suits resistive and general-purpose loads where inrush is modest; don't spec it for motor or transformer primary circuits that need a C or D curve.
DIN-rail fit and panel integration
The 5SL6108-6CC occupies a single 18 mm width unit on the DIN rail, with an installation depth of 70 mm and an overall depth of 76 mm. The IP20 rating applies only with connected conductors — no live terminals exposed in normal use, but it's not sealed against washdown. Screw terminals accept 0.75 to 25 mm² solid or stranded copper, torqued to 2.5–3 N·m.