Specifications General Product Range: ComPacT NSX N‑Frame Device Type: 3‑Pole Molded Case Circuit Breaker (MCCB) Trip Unit: Micrologic 5.3E (electronic) Number of Poles: 3 (three phases) Rated Current (In): 630 A Mounting Type: Fixed panel or switchboard mounting Application: Protection of low‑voltage three‑phase distribution circuits Electrical Ratings Rated Operational Voltage (Ue): Suitable for low‑voltage AC systems up to 690 V AC Rated Frequency: 50/60 Hz Rated Insulation Voltage (Ui): Designed for standard low‑voltage system insulation requirements Rated Impulse Withstand Voltage (Uimp): Engineered to withstand typical transient overvoltages Protection & Trip Unit Trip Unit Type: Micrologic 5.3E electronic trip unit Protection Functions Include: Long‑time overload protection Short‑time overcurrent protection Instantaneous trip for high fault currents Adjustability: Adjustable protection settings for long‑time, short‑time, and instantaneous trip thresholds and delays, enabling coordination with system protection requirements Breaking Capacity & Performance High Breaking Capacity: Designed to interrupt fault currents encountered in industrial, commercial, and infrastructure low‑voltage power systems Selective Coordination: Adjustable settings to improve discrimination with upstream and downstream protective devices Mechanical & Environmental Terminal Connections: Screw or clamp type terminals for conductor attachment Mechanical Durability: Engineered for reliable operation and frequent switching cycles Design: Compact modular housing for space‑efficient integration Safety: Provides reliable electrical isolation and protection under fault conditions