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).
What the Ratings Mean for Your Panel
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 screw-type terminals accept solid or stranded wire from 1 to 10 mm², and the auxiliary switch is built in — no separate add-on block needed for basic status feedback. The operating temperature range of -25 to +60 °C covers most indoor panel environments, and the storage range of -55 to +80 °C handles warehouse extremes.
Mounting and Clearance
Mounts via screw or snap-on onto 35 mm DIN rail per DIN EN 60715. 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. Clearance requirements: 10 mm upwards, 10 mm forwards, 10 mm downwards, 6 mm at the side. The mounting position allows +/-180° rotation on a vertical surface and +/-22.5° tilt forward/backward.