The 16 A rating is at 30 °C ambient; at 40 °C it derates to 15.28 A, at 50 °C to 14.53 A. If your panel runs hot, size the load accordingly — the breaker will hold its trip curve but the continuous current ceiling drops. The 6 kA SCCR per EN 60898 is the standard for domestic distribution; for industrial panels with higher fault current you'd step to an IEC 60947-2 device. Pollution degree 2 covers normal non-condensing environments — no special sealing needed in a clean indoor panel.
Installation depth 70 mm, overall depth 76 mm. Mounting position any. Halogen-free and silicon-free.
Coordination note
4-pole versus 3-pole on the 5SL3340-7CC. Switches all four conductors; neutral conductor switching not present on this variant.