What this RC element does and where it fits
The Siemens 3RT1926-1CE00 is a SIRIUS RC-element surge suppressor designed to clip voltage transients across the coil of a Size S0 contactor. It mounts directly onto the contactor, no separate bracket or wiring harness needed — clean the coil noise without adding panel clutter.
Lifecycle reality: phased out, successor ready
The 3RT1926-1CE00 is a phased-out product. Siemens lists a direct successor: the 3RT2926-1CE00. If you're maintaining an existing panel with the old part, the new one drops into the same S0 footprint — no need to re-engineer the mounting or wiring. For new builds or BOM updates, the preferred replacement is the 3RT2926-1CE00. For legacy spares, we source the original 3RT1926-1CE00 through independent distribution — quantities are lot-specific and confirmed at RFQ. No pinout or mounting changes between the two; it's a straight swap.