The 400 V AC rating at 50 Hz matches standard European low-voltage networks.
Temperature derating and panel fit
The 6 A rating is only valid at 30 °C. At 40 °C it derates to 5.7 A, at 50 °C to 5.3 A, and at 60 °C to 5 A. If the distribution board runs warm — say 55 °C inside a sealed enclosure — the usable current drops to 5.1 A. Account for this in the branch-circuit load calculation; a 6 A RCBO at 55 °C cannot protect a 6 A continuous load. Mounting position is unrestricted, and supply can enter from either top or bottom, simplifying busbar layout in crowded panels. The IP20 rating applies only when the distribution board is installed with conductors connected.
The halogen-free construction (No) is typical for standard residential and commercial boards; if a project mandates halogen-free materials for fire-safety reasons, check the SENTRON portfolio for a halogen-free variant.