The Siemens 5SV3346-6KK60 is a 4-pole residual current circuit breaker (RCCB) from the SENTRON family, rated 63 A at 400 V AC with a 30 mA trip sensitivity and Type A waveform recognition that also detects pulsating DC fault currents up to 6 mA DC. The short-time delayed design (SIGRES function) means it tolerates brief surge currents without nuisance tripping — important on circuits with electronic loads or inrush-heavy equipment.
Snaps onto DIN rail (REG) and occupies 4 modular width units at 60 mm grid spacing. Depth is 70 mm, width 72 mm, height 90 mm.
Listed as Active by Siemens — this is a current-production catalog item, not a phase-out or NRND line. No successor has been issued because none is needed.
The 63 A rating at 400 V AC covers most three-phase distribution subfeeds and large single-phase loads. The 30 mA trip threshold is the standard for personnel protection (shock hazard) in residential and commercial panels. Type A detection means it catches sinusoidal AC faults plus pulsating DC — essential on circuits with rectifiers, variable-speed drives, or EV charging equipment (the Electro Mobility designation confirms suitability for electric-vehicle supply equipment). The short-time delayed characteristic (SIGRES) prevents tripping on transient surges like capacitor switching or motor starting, so it coordinates downstream without nuisance opens.