Capacitor switching in a 45 mm S00 footprint
The 3RT2617-1AF05 is a SIRIUS capacitor contactor from Siemens, size S00, built specifically for switching capacitor banks in power-factor correction panels. It handles the inrush current peaks that standard contactors would weld shut on. The arcing time sits between 10 and 15 ms, and the switching time at AC is 4 to 15 ms — fast enough to keep the capacitor bank from ringing on closure.
DIN rail fit and wire termination
The 45 mm width means it takes up one standard modular slot — that's another SKU that fits the same rail as a miniature breaker or a relay. The screw-type coil terminals are standard — no special tooling needed for the panel builder.