It provides overload and short-circuit protection for motors up to 0.04 kW at 400 V, with a continuous current rating of 0.16 A and a Class 10 trip characteristic — meaning it clears overloads within 10 seconds at 7.2× rated current, matching the thermal time constant of a standard induction motor during a stalled-rotor start.
The 100 kA short-circuit breaking capacity at 400 V (and at 240 V, 500 V, and 690 V) means this breaker can safely interrupt a fault up to that level without upstream fuses or a larger breaker — a real advantage when coordinating a high-fault panel. The 0.16 A continuous rating is the setpoint; it governs the motor FLA it protects, so verify your motor's full-load amps match before specifying. Ground fault detection is not included, so if that's required, a separate ground-fault relay or a different SIRIUS variant is needed.
Spring-loaded terminals on both the main and auxiliary circuits accept 0.25–2.5 mm² solid or stranded wire (24–14 AWG), so no screwdriver torque check — just strip, insert, release.