SIRIUS Size S0 Power Contactor, 110 VDC Coil
The Siemens SIRIUS 3RT2325-2XF40-0LA2 is a Size S0 power contactor with a 110 VDC coil terminated via spring-type terminals. It mounts by screw or snap-on onto 35 mm DIN rail per DIN EN 60715, fitting into the standard panel footprint for this frame class. The DC coil draws a 15 A inrush peak and holds at 110 VDC. Switching capacity is rated across the DC voltage range: 10 A at 24 V, 2 A at 48 V and 60 V, 1 A at 110 V, 0.9 A at 125 V, and 0.3 A at 220 V. For AC-3 motor duty at 400 V, it switches 3 A. Mechanical life is rated at 10,000,000 typical operations. Switching frequency reaches 750 operations per hour for AC-1, AC-2, and AC-3 duty classes, and 300 ops/h for AC-4. The arcing time is 10 ms.
Mounting and Integration
Envelope dimensions are 102 mm high, 60 mm wide, and 107 mm deep. The mounting position allows +/-180° rotation on a vertical surface and +/-22.5° tilt forward and backward, giving flexibility in tight enclosures. Clearance distances: 10 mm upwards, 10 mm forwards, 10 mm downwards, and 6 mm at the side. The main contact wiring accepts 2x (1... 10 mm²) solid or 2x (0.5... 2.5 mm²) stranded, with a strip length of 8 mm for the spring-cage terminals. Operating temperature range is -40 to +70 °C; storage range is -55 to +80 °C. The coil pick-up is at 0.7 of rated voltage, with a drop-out delay of 30 to 50 ms at DC.