Specifications General Product Type: Molded Case Circuit Breaker (MCCB) Series / Family: NSX Model: NSX630N 4P 630A Number of Poles: 4 (three-phase + neutral) Rated Current (In): 630A Mounting Type: DIN-rail or direct panel mounting Application: Protection for electrical distribution systems, especially for large motors and equipment Electrical Ratings Rated Operational Voltage (Ue): 400V AC (three-phase systems) Rated Frequency: 50/60 Hz Rated Insulation Voltage (Ui): 690V AC Rated Impulse Withstand Voltage (Uimp): 8 kV Breaking Capacity (Icu): Typically 50 kA or higher Service Short-Circuit Breaking Capacity (Ics): Typically 100% of Icu (depending on configuration) Protection Characteristics Overload Protection: Thermal protection with adjustable trip settings for overload conditions Short-Circuit Protection: Magnetic protection for instantaneous trip during high fault currents Neutral Protection: Four-pole configuration ensures protection of all conductors including neutral Tripping Characteristics: Thermal-magnetic trip unit for accurate overload and short-circuit protection Mechanical & Environmental Housing: Compact, modular design suitable for panel integration Terminal Connections: Screw clamp terminals for secure conductor connections Degree of Protection: Typically IP20 for front face (depends on installation) Operating Temperature Range: Suitable for typical industrial electrical environments Mounting: DIN-rail compatible for easy integration into switchboards and control panels Functional Features Four-pole configuration for simultaneous protection of three-phase and neutral conductors Adjustable trip settings for precise protection coordination Reliable overload and short-circuit protection with magnetic and thermal trips Modular design for easy integration and flexibility in installations Suitable for high-current protection and large motor applications