Description: Model: NSX 400F Type: Molded Case Circuit Breaker (MCCB) Poles: 3 (Three-phase protection) Rated Current: 400 A Rated Voltage: 690 V AC Application: The NSX 400F is designed to provide reliable protection for electrical systems by offering overload and short-circuit protection. It is ideal for industrial applications, motor protection, and power distribution systems in commercial and industrial environments. Mounting: Panel mounted or DIN rail mounted Standards Compliance: IEC 60947-2, UL 489, CSA C22.2, CE marking Parameters: Rated Current (In): 400 A Number of Poles: 3 (for three-phase systems) Rated Voltage (Ue): 690 V AC (suitable for industrial and commercial power systems) Breaking Capacity (Icu): 50 kA (at 400 V AC) – This means the breaker can interrupt fault currents of up to 50,000 A without causing damage. Tripping Characteristics: Adjustable thermal-magnetic tripping characteristics for overload and short-circuit protection. The thermal protection is adjustable, and the magnetic protection provides rapid disconnection in the event of a short circuit. Rated Frequency: 50/60 Hz Mechanical Durability: 20,000 cycles Electrical Durability: 10,000 cycles Rated Insulation Voltage (Ui): 690 V Rated Impulse Withstand Voltage (Uimp): 8 kV Temperature Range: -5°C to +40°C Auxiliary Contacts: Optional auxiliary contacts (NO or NC) for remote control, signaling, or fault monitoring Connection Type: Screw terminals