The Siemens SIRIUS 3RT1936-1CC00-ZX90 is an RC surge suppressor designed for direct mounting onto Size S2 and S3 contactors. It operates across a 48 to 127 V AC control circuit and is supplied in multi-unit packaging of 5 units.
This part is classified as a phased-out product. The preferred successor is the SIRIUS 3RT2936-1CC00-ZX90, which is the direct drop-in replacement for new builds or BOM updates.
Integration Notes
Mounts directly onto the contactor's coil terminals — no additional wiring or DIN-rail space required. The RC element suppresses voltage spikes from the inductive coil, protecting nearby control electronics.