Key ratings & what they mean
The 3RT2017-2FB41-ZX95: Rated AC-3 at 5.5 kW / 400 V, this contactor is sized for switching three-phase induction motors up to that load — think small conveyors, pumps, or fan drives in a control panel. The AC-3 duty class covers starting and plugging of squirrel-cage motors; the 5.5 kW figure is the motor power it can handle under those conditions. The DC 24 V coil includes an integrated diode for suppression, which simplifies panel wiring — no external free-wheel diode needed across the coil. The S00 frame size (compact, 45 mm width) and spring-loaded terminals accept solid or ferruled stranded conductors without screw torque checks.
Where it fits
Snap-on mounting to DIN rail EN 60715 — standard for panel builders. The S00 footprint matches the SIRIUS 3RT2 contactor family, so auxiliary contact blocks and overload relays from that series clip directly onto the front or side. The spring-loaded terminals (rated for 0.2–2.5 mm²) speed up wiring in high-density panels; no screwdriver needed for the power and coil connections.