It's a 3-pole unit in the compact S00 frame, rated 10 A operational current at AC-3 duty (400 V), which covers the motor-running current for a range of small induction motors up to roughly 4 kW at 400 V three-phase. The magnetic short-circuit trip responds at 130 A, so it clears a bolted fault fast enough to protect the contactor and overload relay downstream — that's the coordination value a panel builder needs for Type 2 coordination.
The S00 footprint is 45 mm wide, 97 mm tall, 96 mm deep, with 50 mm clearance needed above and below, and 30 mm at the sides. No forward or backward clearance required, so it tucks tight against the back panel. Screw-type terminals on top and bottom accept 2x (0.75 to 2.5 mm²) solid/stranded or 2x 4 mm²; AWG equivalents are 2x (18 to 12) and 2x (20 to 16). Torque the main contacts to 0.8–1.2 N·m.
The 10 A rating at AC-3 400 V is the motor-switching current — that's the figure that determines whether this breaker carries your motor's full-load amps without nuisance tripping during start. The 690 V rated insulation voltage (degree of pollution 3) means it's rated for 690 V line-to-line systems, common in 400 V and 690 V industrial networks.
Relative humidity during operation 10–95%. Shock resistance per IEC 60068-2-27: 25g for 11 ms. Installation altitude up to 2000 m above sea level without derating. The substance prohibition date of 05/01/2012 indicates RoHS compliance for that cutoff — the part is RoHS-compliant for the 2012 deadline. Operating frequency at AC-3 is rated at a maximum of 15 switching cycles per hour, which is typical for motor-starting duty.