What the ratings mean for the panel
The Siemens 5SL4115-7 is a 1-pole SENTRON miniature circuit breaker rated 1.6 A with a C-curve tripping characteristic. The C-curve means it holds up to 5–10× rated current momentarily — designed for moderate inrush loads like small contactors, relays, or lighting ballasts in residential and light commercial panels. The 10 kA breaking capacity (per EN 60898 and IEC 60947-2) tells you it can safely interrupt a fault up to 10,000 A at 400 V AC without welding its contacts or cascading upstream. That's the standard for most sub-distribution boards in European-style installations. Rated current derates with ambient temperature: 1.6 A at 30 °C, 1.54 A at 40 °C, 1.5 A at 45 °C, 1.43 A at 55 °C. If your panel runs hot — say inside a non-ventilated enclosure near a transformer — size up one step so the breaker doesn't nuisance-trip on a warm day.
Mounting and panel fit
Snaps onto a standard 35 mm DIN rail. Occupies one modular width unit (18 mm wide). Depth is 76 mm, installation depth 70 mm. Mounts in any position — no derating for orientation. The IP20 rating applies with conductors connected, which is the norm for enclosed distribution boards. Sealable and halogen-free, silicon-free construction — suitable for clean-room or food-production zones where outgassing contaminants are a concern.