The Siemens 5SL4114-8CC is a 1-pole miniature circuit breaker from the 5SL4 Basic Devices series, rated at 230/400 V with a 10 kA breaking capacity and a D-curve trip characteristic set at 0.3 A. The D-curve means it tolerates the high inrush currents typical of motor and transformer loads — the magnetic trip fires at 10–20× rated current, so a 0.3 A breaker won't nuisance-trip on a small motor start. Panel builders slot this into a standard DIN-rail enclosure alongside other 5SL4 units, keeping the fill factor predictable.
Mounts on a 35 mm DIN rail per EN 60715. The 1-pole width is one modular unit (18 mm), so a 24-way distribution board holds 24 of these. The D-curve at 0.3 A is unusual — most D-curve breakers start at 1 A or higher — so verify the load's inrush profile against the 10–20× magnetic trip threshold before committing the BOM. For a 0.3 A motor load, the inrush must stay under 6 A peak to avoid a trip on start.
RoHS compliant since 01-06-13. REACH Article 33 disclosure: lead (CAS-No. 7439-92-1) present above 0.1% w/w in the candidate list. Export controls are AL: N / ECCN: N, so no special licensing for cross-border shipment. The product class is B — return restricted, meaning the manufacturer expects the buyer to coordinate returns through a Siemens partner or contact rather than direct.