It's rated for 45 kW at 500 V and 21.1 kW at 690 V under AC-3 duty, meaning it handles the inductive load of a standard three-phase motor up to those power levels without derating. Side-by-side mounting is supported, which keeps the rail footprint tight when you're stacking multiple contactors.
The storage range extends to -55 to +80 °C, which covers shipping and off-season storage. The front of the contactor carries an IP20 rating, meaning it's touch-safe for finger access per IEC 60529.
Solid conductors can be terminated as 2x (0.5 to 1.5 mm²), 2x (0.75 to 2.5 mm²), or up to 2x (0.75 to 4 mm²) maximum. Stranded conductors accept 2x (10 to 50 mm²), which covers the feeder cable for a motor up to about 45 kW at 500 V. The contactor depth is 139 mm, width 70 mm, and height 146 mm — that's a compact footprint for the S3 frame. If you're replacing an older contactor in a tight panel, measure the existing DIN-rail space; the width is the critical dimension for side-by-side fit.