Siemens 3RT7025-1AH00 SIRIUS Contactor — S0 Frame, AC Coil
The AC-3 motor-switching rating goes up to 690 V, with a maximum operating rate of 800 operations per hour at AC-3 and 250 per hour at AC-4. For DC-13 solenoid loads at 220 V, it handles 0.3 A. The auxiliary contacts are specified for PLC-level reliability at 17 V, 5 mA — meaning they'll switch dry logic signals without the oxide-film problems that plague some contactors on low-energy circuits.
The S0 footprint (45 mm wide, 85.5 mm tall, 91 mm deep) leaves room for a four-pole auxiliary block on the front, which the contactor supports as a product extension. The shock resistance is rated at 12.5g for 5 ms and 7.8g for 10 ms — adequate for most industrial panel applications, but verify against any high-vibration machinery mounts.
For type 2 coordination (minimal damage after a short circuit), Siemens specifies a 25 A gL/gG NH 3NA fuse. For type 1 coordination (device must be replaced after fault), the fuse rating goes to 63 A.