The Siemens 3RT6924-5AB01 is a SIRIUS magnet coil for S0-frame contactors. It terminates through screw terminals on the coil body. The coil is wound for 24 V AC control supply at 50 Hz, with a rated operating range of 0.8 to 1.1 times nominal voltage — so it reliably picks up between about 19 V and 26 V, and holds in down to roughly 19 V. Holding power is 7.6 VA; inrush at pickup is higher but the steady-state load on the control transformer is that figure.
The coil snaps onto the S0 contactor's magnet system without tools — it's a field-replaceable assembly on SIRIUS contactors. Because the coil is AC-operated, verify the control transformer sizing accounts for the pickup inrush (typically 5–8x holding VA for a few cycles) if multiple coils pull in simultaneously. The 7.6 VA holding figure is the continuous load after pickup.