It is rated 32 A operational current at 400 V AC-3 duty, so it directly protects a motor drawing that full-load current. The 55 mm width (three 18 mm pole pitches plus clearance) fits standard panel layouts. Terminal acceptance: up to 35 mm² solid or 25 mm² finely stranded with ferrules, with box-type screw terminals torqued to 3–4.5 N·m.
The headline 32 A at 400 V AC-3 is the motor-switching rating — the current the breaker can make and break under motor start conditions. The maximum operating voltage is 690 V, covering 400 V and 480 V line-to-line systems common in industrial plants. Surge voltage withstand is 6 kV, which aligns with IEC 60947-2 overvoltage category III for distribution-level coordination. Thermal overload release is adjustable via the front dial (not detailed in the spec excerpt, but standard on SIRIUS breakers). The magnetic short-circuit trip is fixed. Shock resistance is 25 g for 11 ms per IEC 60068-2-27. Installation altitude is limited to 2000 m above sea level without derating.