SIRIUS S0 contactor, 18 A AC-3, 110 V AC coil
The Siemens SIRIUS 3RT2325-2AF00 is a size S0 contactor rated for 18 A operational current in AC-3 duty (motor switching), with a 110 V AC 50 Hz coil. It carries one instantaneous NO auxiliary contact (1 NO) rated across a voltage range — for example, 10 A at 24 V, 6 A at 60 V, 1 A at 110 V, 0.3 A at 220 V, and 3 A at 400 V — so it can handle both the main motor load and a feedback signal to a PLC or indicator without a separate aux block for basic applications. The coil connection uses spring-type terminals, while the main and auxiliary power connections accept solid conductors up to 2.5 mm² (2x) or stranded up to 10 mm². Mechanical endurance is rated at 10 million operating cycles.
Mounting and integration
Mounts via screw or snap-on onto 35 mm DIN rail per DIN EN 60715. The S0 frame measures 60 mm wide, 102 mm high, 97 mm deep. Clearance: 10 mm upwards, 10 mm forwards, 10 mm downwards, 6 mm at the side. Mounting position allows ±180° rotation on a vertical surface and ±22.5° tilt forward/backward — useful when panel layout forces an unconventional orientation. Operating temperature range is -25 to +60 °C; storage range -55 to +80 °C.