The Siemens 3RT1936-6A is a replacement contact set for the SIRIUS contactor frame size S2. It covers a 3-pole, AC-3 duty rating of 22 kW with 3 normally-open main contacts. The kit includes 3 movable and 6 fixed contacts plus mounting hardware — everything needed to recondition a worn contactor on the line without replacing the whole coil block.
No phase-out or last-time-buy has been announced for this order code.
Sized for the SIRIUS S2 contactor frame, this set fits the standard DIN-rail mounted footprint. The 3 movable and 6 fixed contacts replace the arc-chamber assembly; mounting parts are included so no additional hardware is needed. Expect to swap the set during a scheduled maintenance window — typical contact wear at rated AC-3 switching cycles is the trigger for replacement.