The Siemens 3RT5934-5AF01 is a SIRIUS magnet coil — the replaceable solenoid that pulls in the contactor armature. It's the control-side component that converts the 110 V AC control signal into the magnetic force to close the main power contacts. Rated at 110 V AC, 50 Hz, with a holding current range of 0.8... 1.1 A at 50 Hz, this coil is sized for the contactor frame it ships with. The 0.8... 1.1 A range tells you the steady-state draw once the contactor is sealed; inrush at pick-up will be higher, but the holding VA determines the transformer or control-circuit breaker sizing on the panel schematic.
When replacing a coil in an existing panel, verify the contactor frame size matches; the 3RT5934-5AF01 is specific to the contactor it was ordered for. The AC control voltage means the coil is designed for line-frequency AC supplies — not for DC control buses common in 24 VDC PLC cabinets. If your panel runs a 24 VDC control voltage, this coil will not pull in; you'd need the DC-rated variant from the same SIRIUS family.