SIRIUS S00 coupling contactor — 24 VDC coil, spring terminals
The 3RT2017-2VB41 is a Siemens SIRIUS coupling contactor in the S00 frame size, designed for switching auxiliary circuits in control panels. The 24 V DC coil pulls in at 0.85 x rated voltage (20.4 V) and drops out at 1.85 x rated voltage (44.4 V), giving a wide operating band on a 24 VDC supply. This covers the typical control-voltage range found in industrial panels — the 10 A at 24 VDC is the figure most BOM lines need.
Panel fit and wire termination
That's a standard 20–12 AWG range — wires up clean with no ferrule needed for solid. The contactor has no built-in auxiliary switch — if you need feedback, add a separate auxiliary contact block.