What this RC snubber does on an S00 contactor coil
The 3RT6916-1CF00 is a surge suppressor with RC elements, designed to clamp voltage transients across the coil of Siemens SIRIUS size S00 contactors and contactor relays. The RC network absorbs the inductive kick when the coil de-energises, protecting nearby PLC outputs and reducing electrical noise on the control circuit.
Panel fit and mounting — clips onto the contactor
Clip-on fastening method means it snaps directly onto the S00 contactor or relay without extra DIN-rail space — the 9 mm depth adds negligible projection beyond the contactor body. Width is 28 mm and height 46 mm, matching the S00 footprint so it does not overhang adjacent components in a tightly packed panel.