The IP20 rating applies once the distribution board is installed with conductors connected; the enclosure provides the required ingress protection. Terminal tightening torque is 2.5 to 3 N·m, accepting solid or stranded conductors from 1 to 16 mm².
Overvoltage category III (fixed installation). The design is instantaneous (no short-time delay), silicon-free, and finger- and back-of-hand safe per the protection against electrical shock specification.
