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. Panel builders slot this into a standard DIN-rail enclosure alongside other 5SL4 units, keeping the fill factor predictable.
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. 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.