Technical Specifications General Product Type: Molded Case Circuit Breaker (MCCB) with electronic trip unit Series: ComPacT NSX400 Trip Unit: Micrologic 6.3E electronic trip unit (LSIG protection) Rated Current: 400 A Application: Low‑voltage distribution and protection Electrical Ratings Rated Operational Voltage: Up to 690 V AC, 50/60 Hz Network Type: AC Rated Insulation Voltage: Typically up to 800 V AC (design insulation limit) Protection Functions (LSIG): L – Long‑time overload protection S – Short‑time short‑circuit protection I – Instantaneous short‑circuit protection G – Ground fault protection Adjustable Settings: Long‑time (Ir), short‑time, instantaneous, and ground fault adjustment ranges available Performance & Breaking Capacity Utilisation Category: Category A (standard distribution) Ultimate Short‑Circuit Breaking Capacity (Icu): Up to 200 kA @ 380/415 V AC (varies by specific frame and configuration) Service Short‑Circuit Breaking Capacity (Ics): Rated for selective coordination in power systems Physical & Mechanical Poles: Available in 3‑pole or 4‑pole configurations with neutral options Mounting Mode: Fixed panel or enclosure installation Indicators: LED status indicators for trip conditions and readiness Trip Unit Interface: Electronic display and adjustment interface for protection settings Standards & Compliance Designed to comply with IEC/EN 60947‑2 (Low‑Voltage Circuit Breakers) Suitable for industrial and commercial electrical distribution applications Key Features (English) ✔ Compact molded case design — ideal for panel integration ✔ Micrologic 6.3E electronic trip unit with LSIG protection capabilities ✔ Adjustable long‑time, short‑time, instantaneous, and earth‑fault protection ✔ High breaking capacity suitable for demanding low‑voltage systems ✔ Multiple pole and neutral configurations available ✔ Clear status indicators for maintenance and diagnostics Summary of Key Parameters Parameter Specification Model / Series ComPacT NSX400 with Micrologic 6.3E trip unit Rated Current 400 A Rated Operational Voltage Up to 690 V AC Protection Functions LSIG (Overload, Short‑time, Instantaneous, Ground fault) Adjustable Settings Yes (Ir, short‑time, instantaneous, ground fault) Breaking Capacity Up to ~200 kA (depending on configuration) Trip Unit Technology Electronic Poles 3P / 4P options