Siemens 3RT2025-1NF30 — SIRIUS S0 Power Contactor, 95-130 V Coil
The Siemens 3RT2025-1NF30 is a SIRIUS S0-size power contactor with a 95-130 V AC coil and screw-type terminals. It's rated for AC-3 switching at up to 1000 operations per hour, with a mechanical life of 10 million cycles typical. The 45 mm width and 107 mm depth fit the standard S0 footprint on 35 mm DIN rail (DIN EN 60715).
The AC-3 rating at 1000 1/h means this contactor is sized for motor switching duty — starting and stopping a squirrel-cage motor under load. The 95-130 V AC coil range covers common control voltages in European and North American panels; the inrush peak of 15 A tells you the coil draw at pickup, so size your control transformer and fuse accordingly. The 10 ms arcing time is consistent with a well-snubbed contactor — expect clean interruption on resistive and motor loads.
The S0 size (45 mm wide, 85 mm high, 107 mm deep) is a standard Siemens contactor footprint — it drops into any panel with S0 cutouts or DIN rail space.