The Siemens SENTRON 5SL4102-8CC is a 1-pole miniature circuit breaker with a D tripping characteristic, rated 2 A and 10 kA breaking capacity at 230/400 V AC. It's built for residential and infrastructure panels where high inrush loads — like small motors or transformers — need a D-curve to avoid nuisance trips on startup.
D-curve and breaking capacity
The D-curve (10–20× In magnetic trip) is the key fit criterion here: it handles the startup surge of inductive loads without dropping out. The 10 kA breaking capacity at 230/400 V AC (acc. to EN 60898) means it can safely interrupt a fault up to 10 kA — standard for residential sub-distribution and light commercial panels.
The installation depth is 70 mm — enough clearance for standard busbars and wiring. Rated IP20 with connected conductors, so it needs an enclosure for anything beyond dry indoor use.
Halogen-free and silicon-free construction. Vibration resistance per IEC 60068-2-6 at 50 m/s² over 25–150 Hz. The product lifecycle is current — no obsolescence notice on record.