It's a 4-pole unit, toggle-operated, and carries EN/IEC 60947-2 certification for isolation suitability.
At 220/240 V it jumps to 100 kA Icu; at 690 V it drops to 10 kA Icu. That's a full range of SCCR coverage for a 125 A frame — you're not leaving coordination to chance. The utilisation category is A, meaning it's not intended for frequent switching under load (that's what contactors do), but for distribution protection where the breaker sits closed until a fault or maintenance call.
The 140 mm width, 161 mm height, and 86 mm depth fit standard ComPacT NSX cutouts. IP40 enclosure protection means it's fine inside a cabinet; IK07 impact rating handles accidental tool drops during commissioning.
Environmental and electrical durability
Rated for 40,000 mechanical cycles and 20,000 electrical cycles at 440 V In. That's solid for a distribution breaker — you're not cycling it daily like a motor starter, but it handles routine switching for maintenance or seasonal load changes.