Legrand circuit breaker RX3 according to EN 60898-1, VDE 0641-11, EN 60947-2, 1-pole, B characteristic, rated current In 20 A, rated switching capacity Icn 6 kA according to EN 60898-1, rated voltage Un 230/400 VAC, rated frequency 50/60 Hz, energy limitation class 3, fastening on top hat rail EN 60715 using a snap-in fastening, clear information on the front of each device, marking switch position indicator On/Off, with labeling field, attachment of auxiliary devices not possible. Circuit breakers with B characteristic are primarily intended for line protection in lighting and socket circuits.