The Schneider Electric Compact NSX CVS400F is a three-pole, 320A molded case circuit breaker (MCCB) equipped with an advanced Micrologic “MA” electronic trip unit (or equivalent communication-enabled unit). The “F” denotes its High breaking capacity, while “MA” signifies Modbus Addressable intelligence.
Parameters:
Parameter Value / Description
Product Line / Frame Size Compact NSX400
Rated Current (In) 320 A (Set and adjustable via the intelligent trip unit, e.g., 0.4-1.0 x In).
Number of Poles 3
Breaking Capacity High (F Rating)
Rated Ultimate Breaking Capacity (Icu) Typically 70 kA at 415V AC (IEC 60947-2).
Rated Service Breaking Capacity (Ics) 100% of Icu (IEC 60947-2).
Rated Operational Voltage (Ue) Up to 690 V AC
Trip Unit Type Electronic Micrologic with Communication (“MA” type). Provides:
• Protection: Adjustable Long-time (L), Short-time (S), Instantaneous (I). Ground fault (G) is optional.
• Measurement: Current, Voltage, Power (kW, kVA), Power Factor, Energy (kWh).
• Communication: Modbus RTU over RS-485 serial link (integrated or via plug-in module).
Communication Protocol Modbus RTU (Standard for “MA” functionality).
Standard IEC 60947-2
Mounting Fixed or Plug-in/Withdrawable (depends on selected base kit).
Connection Front or Rear connection (depends on kit). Suitable for busbar or cable lug.
Width Approximately 126 mm (for 3-pole fixed version. Width varies with mounting style).
Key Intelligence Feature Embedded or modular communication capability for direct integration into SCADA, BMS, or Schneider Electric’s EcoStruxure Power platform.