What this time-delay block does and where it fits
The 3RT6926-2PR01 is a pneumatic time-delay relay block that clips onto Siemens 3RT6 motor contactors in the S0 frame size. It provides an adjustable off-delay from 0.1 to 30 seconds using a single-pole normally-open plus single-pole normally-closed auxiliary contact set. Rated for continuous duty at AC-12 up to 10 A, it handles typical control-circuit loads on contactor coils, pilot lights, and PLC inputs.
Mounting and wiring in the panel
Clip-on fastening snaps directly onto the contactor — no separate DIN-rail footprint needed. The S0 frame size means it fits the same panel space as the base contactor, adding 45 mm width and 60 mm depth to the assembly. The front is IP20 finger-safe, so it meets touch-protection requirements in open panels without additional shrouding.