Residual current circuit breakers (RCBOs) offer personal and material protection as well as protection against electrically ignited fires in accordance with DIN VDE 0100-410 and DIN VDE 0100-530. They ensure protection of single-phase circuits against overload and short-circuit currents, protection against sinusoidal alternating currents and pulsating currents with smooth DC residual current of up to 6 mA to earth. As well as fault protection (protection against indirect contact), additional protection (with I¿n = 30 mA) and fire protection (with I¿n = 300 mA). They comply with the product standard IEC/EN 61009-1 (VDE 0664-20). Contact is made directly via the Smissline TP plug-in base system and the outer conductor contact can be freely selected for single-phase devices (L1, L2 or L3)