It carries 4 normally-open main contacts and is rated for AC-2 duty at 4 kW on a 400 V supply — that means it handles slip-ring motor starting and reversing without excessive contact wear.
For resistive loads (AC-12), the operating current maxes at 10 A. The contactor also carries a rated operational current at 24 V of 10 A, dropping to 0.3 A at 220 V — these figures define its auxiliary switching capability across control voltages. The S00 footprint (45 mm wide, 57.5 mm tall, 72 mm deep) is the smallest Siemens contactor frame, so it fits tightly packed panels where every millimeter counts.
Screw-type terminals on the main current circuit accept solid or stranded conductors: 2x (0.5 to 1.5 mm²), 2x (0.75 to 2.5 mm²), or up to 2x (0.75 to 4 mm²). AWG equivalents are 2x (20 to 16), 2x (18 to 14), or 1x 12.