Parameter Value / Description Product Line / Frame Size Masterpact NSX250 Rated Current (In) 250 A (Frame Rating). The operational current is set and adjusted via the installed electronic trip unit. Number of Poles 3 (Standard configuration). Breaking Capacity (Must be Specified) Critical Selection: Defines the short-circuit interrupting capability. • N (Standard): ~50 kA Icu • S (Standard High): ~70 kA Icu • H (High): ~100 kA Icu • L (Extreme High): ~150 kA Icu *Example: NSX250N, NSX250H Rated Ultimate Breaking Capacity (Icu) Depends on selected rating. e.g., H rating: 100 kA at 415V AC (IEC 60947-2). Rated Operational Voltage (Ue) Up to 690 V AC Trip Unit (Must be Specified) Electronic Micrologic only. Wide range available: • Basic Protection: Micrologic 2.0A - 6.0A (LSI protection). • Protection + Measurement: Micrologic 5.0E - 6.0E (adds power/energy metering). • Protection + Communication: Micrologic 5.0A/6.0A/7.0A (adds embedded comms). Communication Native in Micrologic "A" and "E" series. Supports Ethernet, Modbus TCP, Profibus DP, etc., for direct integration into EcoStruxure Power and other management systems. Mounting Style Primarily Withdrawable (standard racking mechanism for easy maintenance). Also available in Fixed version. Connection Front or Rear connection (depends on kit). Standard IEC 60947-2 Width (Withdrawable 3P) Approximately 165 mm