The Siemens 5SL3616-7 is a SENTRON miniature circuit breaker — 4-pole (3P+N), C-curve, rated 16 A at 400 V AC. The C-curve (tripping between 5× and 10× In) handles moderate inrush loads like small motor starters or lighting banks without nuisance trips, while still clearing a hard fault inside the 4.5 kA rating per EN 60898 (5 kA per IEC 60947-2). This is the part for a residential or infrastructure distribution board — the suitability field on record says exactly that.
At 40 °C it derates to 15.23 A; at 55 °C it drops to 13.99 A. If the panel runs warm — say a crowded enclosure near a transformer — use the 40 °C figure for continuous load planning.
Dimensions: 72 mm wide (4 MW), 90 mm tall, 76 mm deep (70 mm installation depth behind panel). Sealable, halogen-free, silicon-free. Accepts auxiliary switches or shunt trips via the product extension slot. Mounting position any, so vertical or horizontal DIN-rail orientation works.