The Siemens SIRIUS 3RT2617-1BB43 is a capacitor contactor in Size S00, designed for switching capacitive loads in power factor correction banks. Rated switching currents: 6 A at 24 V and 230 V, 3 A at 400 V, 1 A at 690 V. The DC coil pick-up is 0.85x rated voltage, drop-out at 1.1x full-scale — typical for capacitor contactors that need a clean pull-in to avoid contact chatter on inrush. Dimensions are 45 mm wide, 125 mm high, 120 mm deep — a standard S00 footprint that fits alongside other SIRIUS modular components in a control panel.
Wire termination accepts solid or stranded conductors: 2x (0.5 to 1.5 mm²), 2x (0.75 to 2.5 mm²), or 2x 4 mm² per terminal. Maximum switching frequency is 180 operations per hour across the voltage range up to 690 V. DC operate time 7 to 13 ms — fast enough for standard PF correction switching cycles.