Parameters : Parameter NSX400 4P4D NSX630 4P4D Product Line / Frame Size Masterpact NSX400 Masterpact NSX630 Rated Current (In) Up to 400 A (Set via electronic trip unit) Up to 630 A (Set via electronic trip unit) Pole Configuration 4P4D – 4 Poles, All 4 Protected (Phase & Neutral) 4P4D – 4 Poles, All 4 Protected (Phase & Neutral) Breaking Capacity Must be specified (N, S, H, L). Common: H (100 kA Icu). Must be specified (N, S, H, L). Common: H (100 kA Icu). Rated Ultimate Breaking Capacity (Icu) e.g., 100 kA at 415V AC for H rating (IEC 60947-2). e.g., 100 kA at 415V AC for H rating (IEC 60947-2). Rated Operational Voltage (Ue) Up to 690 V AC Up to 690 V AC Trip Unit Electronic Micrologic Only. Range: 2.0A (basic) to 7.0A (advanced protection, measurement, communication). Electronic Micrologic Only. Range: 2.0A (basic) to 7.0A (advanced protection, measurement, communication). Communication Native in Micrologic "A" and "E" series (Ethernet, Modbus TCP). Native in Micrologic "A" and "E" series (Ethernet, Modbus TCP). Standard IEC 60947-2 IEC 60947-2 Mounting Withdrawable (standard) or Fixed. Withdrawable (standard) or Fixed. Connection Front or Rear (depends on kit). Front or Rear (depends on kit). Typical Width (Withdrawable 4P) Approx. 220 mm Approx. 220 mm (Modular design, similar width)