The Siemens 3RT2626-1BB45-0WA1 is a Size S0 contactor from the SIRIUS 3RT2 series, designed for switching loads in industrial control panels. Rated for DC switching at 6 A at 24 V, 2 A at 60 V, 0.9 A at 125 V, and 0.3 A at 220 V. For AC loads it handles 6 A at 230 V, 3 A at 400 V, and 1 A at 690 V. The coil dropout time is 15 to 18 ms DC, and the arcing time sits at 10 ms.
The contactor accepts solid conductors: 2x (0.5 to 1.5 mm²), 2x (0.75 to 2.5 mm²), or 2x 4 mm². Stranded: 2x (1 to 2.5 mm²) or 2x (2.5 to 10 mm²). Single conductor up to 10 mm² at 40 °C, or 2x 10 mm² at 60 °C. The 135 mm height and 165 mm depth fit standard enclosure depths. No auxiliary contact block is attached from the factory (0 attachable blocks listed), but the contactor accepts add-on blocks for field expansion.