The Siemens 3RT1017-1AM22 is a SIRIUS power contactor in the size S00 frame — the smallest footprint in the SIRIUS family, at 45 mm wide by 57.5 mm tall by 72 mm deep.
For heavy plugging or reversing duty (AC-4), the rated current is 8.5 A at 400 V. The AC-12 rating (control-circuit loads) goes to 10 A. For the DC switching side, the contactor handles 10 A at 24 V, 2 A at 60 V, 1 A at 110 V, and 0.3 A at 220 V. That covers solenoid valves, small DC motors, and signal switching within a 24 VDC control loop.
Type 1 coordination (the contactor may need replacement but the system is safe) allows a 35 A gL/gG fuse. Use the Type 2 value if the panel needs to survive a fault without unplanned downtime — the 20 A fuse limits let-through energy to protect the contactor.
Rated for pollution degree 3 (industrial environments with conductive or dry non-conductive pollution). Side-by-side mounting is allowed (no derating needed for adjacent units). Front and terminal protection is IP20 — finger-safe for the panel but not washdown-rated.