The 100 kA Icu at 240 V AC is the headline number, but the 70 kA at 415 V is what governs selectivity in a 400 V panel — if your fault current at the bus is under 70 kA, this breaker clears it without upstream coordination trouble. The TM-D trip unit gives you thermal-magnetic protection: thermal (L) for overload, magnetic (I) for short-circuit. The 16 A rating at 50 °C means it carries 16 A continuously in a 50 °C ambient — no derating needed at that temperature. The 3D protected poles mean all three poles are protected — no shared-trip surprises.
The 105 mm width, 161 mm height, and 86 mm depth fit standard ComPacT NSX cutouts. Front connections both upside and downside — no rear-access surprises. IP40 enclosure is fine for a clean panel; IK07 impact resistance handles the odd dropped tool.
Certified to EN/IEC 60947-2, which covers low-voltage switchgear and controlgear — the standard that defines breaking capacity, service conditions, and isolation suitability. The breaker is marked suitable for isolation per that standard, so you can use it as a disconnecting means.