Specifications Parameter Specification Product Name Schneider Electric ComPacT NSX 3P Molded Case Circuit Breaker Device Type Molded Case Circuit Breaker (MCCB) Series / Range ComPacT NSX100…250 Poles 3‑pole (3P) Rated Current (In) 100 A or 160 A (frame ratings, depending on trip unit) Available Trip Units Thermal‑Magnetic (TM‑D), Electronic Micrologic (optional) Rated Operational Voltage (Ue) Up to 690 V AC, 50/60 Hz Rated Insulation Voltage (Ui) 800 V AC (per IEC/EN 60947‑2) Network Type / Frequency AC, 50/60 Hz Utilisation Category Category A (distribution) Breaking Capacity (Icu) Up to 100 kA @ 380/415 V AC (frame S) — actual depends on chosen trip unit and frame class; also multiple rated values across standards Short‑Circuit Protection Provided by thermal‑magnetic or electronic trip units Overload Protection Thermal element in trip unit Trip Unit Functions Overload, short‑circuit, instantaneous adjustments (varies by trip unit type) Mounting Mode Fixed mounting on panel or distribution enclosures Standards Complied IEC/EN 60947‑2 (Circuit breakers) Typical Use Low‑voltage power distribution, industrial control panels, main incomer/branch protection