The Siemens 5SL4515-8 is a SENTRON miniature circuit breaker rated 1.6 A at 230 V AC with a D tripping characteristic and a 10 kA breaking capacity per EN 60898. The 1P+N configuration switches the line and switches the neutral, with neutral conductor switching built in. This is a current-production part — no lifecycle concern for a new BOM line.
At 1.6 A the breaker protects a 368 VA load on a 230 V line; the 10 kA SCCR per EN 60898 and IEC 60947-2 means it can interrupt a fault up to 10 kA without upstream damage, which covers most residential and light commercial service entrances.
Temperature derating and environment
Rated current is 1.6 A at 30 °C ambient, but drops to 1.54 A at 40 °C and 1.43 A at 55 °C. If the panel runs warm — typical for a crowded enclosure or near a heat source — size the load accordingly. Halogen-free and silicon-free construction suits environments where outgassing matters — clean rooms, food processing, or medical facilities.