The Siemens SIRIUS 3RT1934-5AN62 is a magnet coil for Size S2 contactors, designed for spring-loaded connection technology. This coil is the replacement part for the contactor's electromagnetic actuation — when the coil fails or a panel needs a different control voltage, this is the swap-in component.
This part is a phased-out product. The manufacturer's official successor is the SIRIUS 3RT2 series.
If you're swapping a failed coil in an existing panel, the spring-cage terminals are faster to re-terminate than screw types, but verify the conductor preparation matches the contactor's wiring spec.
The coil draws 0.8... 1.1 A at 50 Hz — that's the holding current once the contactor is picked up. The pick-up inrush is higher but brief; the control transformer or PLC output driving this coil must be rated for the inrush, not just the holding current. At 60 Hz the coil is rated for 220 V, so a 208 V or 240 V control bus is within range. If your panel runs a 230 V control transformer, this coil's 200 V 50 Hz / 220 V 60 Hz rating means it will pull in reliably on the 230 V bus, but verify the thermal margin — sustained overvoltage on the coil reduces service life.