Electronically delayed auxiliary switch, can be snapped on at the front, time range 1.5...30s, AC / DC 24 V, 2S, star-delta function, size S6...S12 SIRIUS 3RT19 auxiliary switch, star-delta function, for the targeted starting of motors in star-delta circuits.Application area for contactors 3RT105, 3RT1.6 and 3RT1.7. Can be used worldwide thanks to international approvals and wide voltage range.Available for contactors S6 to S12, in various voltages and time ranges.SIRIUS relays - a program for all cases.