The Schneider Electric Compact NSX400F is a fixed-mounted, 3-Pole Moulded Case Circuit Breaker (MCCB) equipped with a Micrologic 2.3M electronic trip unit, set to a 320A rated current.
Parameter Specification
Product Line / Range Acti 9 / Compact NSX
Frame Size NSX400
Number of Poles 3-Pole (3P)
Breaking Capacity Category F
Rated Ultimate Breaking Capacity (Icu) 25 kA at 400V AC (IEC 60947-2)
Rated Operational Current (In) 320 A (Adjustable setting on the electronic trip unit)
Trip Unit Micrologic 2.3M Electronic Trip Unit
Protection Functions • Long-Time Delay (L) – Adjustable Ir (0.4-1 x In) & Tr
• Short-Time Delay (S) – Adjustable Isd & Tsd
• Instantaneous (I) – Adjustable Ii
Communication Built-in Modbus RS-485 port ("M" suffix) for remote communication.
Measurement Basic Measurement: Displays real-time current (I).
Display & Interface Graphic display with navigation buttons for setting, diagnostics, and measurement viewing.
Rated Operational Voltage (Ue) Up to 690V AC
Mounting Style Fixed (MA)
Control Rotary handle (standard). Options for motorized operation.
Electrical Durability Up to 20,000 operations
Standards IEC 60947-1 & 60947-2