The Siemens 3RT2517-2GG20 is a SIRIUS Size S00 contactor with a 24 VDC coil and spring-type terminals on the coil side. It switches 10 A at 230 V AC (AC-1) and 10 A at 24 V DC, making it a fit for resistive or moderate inductive loads in a control panel. The 45 mm width and screw-and-snap-on mounting to 35 mm DIN rail (DIN EN 50022) mean it slots into a standard panel layout without extra bracketry.
Mounting position is flexible: the contactor can be rotated ±180° on a vertical surface and tilted forward/backward ±22.5°. Side-by-side mounting is allowed, so you can gang multiple units without a gap — useful when packing a row of contactors on a DIN rail. The spring-cage terminals accept 2x 0.5 to 4 mm² solid or stranded wire; strip length is standard for spring clamps.