The Siemens 3RT2017-1UB41-1AA0-Z W96 is a SIRIUS size S00 power contactor rated for AC-3e/AC-3 duty at 12 A, switching 5.5 kW at 400 V across three poles. The 24 V DC coil includes an integrated varistor for suppression, and a single NO auxiliary contact is built in. Screw terminals and upright mounting position are standard for this frame.
The AC-3e rating of 12 A is the motor-switching current — this contactor handles starting and stopping of three-phase induction motors up to 5.5 kW at 400 V. AC-3e is the energy-efficient variant of AC-3, reflecting modern motor inrush profiles. The 24 V DC coil with integrated varistor means no external snubber is needed for DC switching; the varistor clamps the inductive kick from the coil itself. Size S00 is the smallest SIRIUS frame, fitting compactly on a DIN rail. The single NO auxiliary contact provides basic feedback to a PLC or seals the coil in a three-wire start circuit.
RoHS compliant since 01-10-09. REACH candidate list information is available.