Siemens 3RT2325-1AL20 — SIRIUS Contactor, S0 Frame, 230 VAC Coil
Its AC coil is rated for 230 V at both 50 Hz and 60 Hz, drawing 0.25 A at 50 Hz and 0.28 A at 60 Hz — the slight difference matters for transformer sizing in mixed-frequency panels. The contactor carries a built-in auxiliary switch rated for 10 A at 24 V and 230 V, 6 A at 60 V, 3 A at 400 V, and 0.1 A at 600 V — covering both control-circuit and low-power load switching across common voltage levels. Mechanical life rated at 10,000,000 operations typical; arcing time 10 to 10 ms; AC switching times 4 to 16 ms.
Mounts via screw fixing or snap-on onto 35 mm DIN rail per DIN EN 60715 — the S0 footprint (85 mm high, 60 mm wide, 97 mm deep) fits standard panel layouts.
The magnet coil uses screw-type terminals; main contact wiring accepts 1 to 10 mm² stranded copper, while auxiliary contact terminals accept 2x (0.5 to 1.5 mm²) solid or 2x (0.75 to 2.5 mm²) stranded. Two auxiliary contacts are attachable, expanding the switching capacity for feedback or interlock circuits.