The Schneider NSX 4P 250F 250A is a 4-pole molded case circuit breaker (MCCB) from Schneider Electric's NSX series. This breaker is designed for protecting electrical circuits in industrial, commercial, and infrastructure applications where high reliability and high breaking capacity are required
Specifications:
Type: Molded Case Circuit Breaker (MCCB)
Number of Poles: 4P (4 poles) – Suitable for three-phase systems with a neutral conductor
Current Rating: 250A
Frame Size: 250F (indicating the frame size for 250A current rating and breaking capacity)
Rated Voltage: Typically 415V (for three-phase systems)
Rated Frequency: 50/60 Hz
Breaking Capacity:
50 kA at 415V (maximum fault current the breaker can interrupt)
Tripping Characteristics:
Thermal Protection: Overload protection, designed to disconnect the circuit when current exceeds rated value for a prolonged period.
Magnetic Protection: Short circuit protection, disconnects the circuit almost instantly when a fault occurs.
Adjustable Settings: Both thermal and magnetic protection settings are adjustable, allowing the breaker to be fine-tuned for specific application needs.
Protection Functions:
Overload protection
Short-circuit protection
Optional earth fault protection when equipped with accessories
Auxiliary Contacts: Optional auxiliary contacts for control and monitoring.
Compliance: Meets international standards such as IEC 60947-2, ensuring compliance with safety and performance standards for industrial electrical equipment.
Key Features:
High Breaking Capacity: With a 50 kA breaking capacity at 415V, this MCCB can withstand and safely interrupt high fault currents, making it suitable for use in demanding industrial environments.
Adjustable Protection: The thermal and magnetic protection settings are adjustable, allowing for customized protection that matches specific operational needs.
Compact and Robust Design: Despite its high current rating, the NSX series is designed to be compact, offering space savings in electrical panels and switchgear.
Reliability and Durability: Built for harsh environments, this MCCB is designed to withstand wear and tear and offer consistent performance over a long service life.
Versatile Applications: The NSX 4P 250A MCCB is modular and can be customized with a variety of accessories such as motor operators, undervoltage releases, and auxiliary contacts for enhanced functionality.
Easy Installation: Fits into standard DIN rail mounting systems, ensuring easy integration into electrical distribution panels and switchgear.
Applications:
Industrial Power Distribution Systems: Protects industrial circuits, machinery, and equipment in manufacturing plants, factories, and production facilities.
Commercial Installations: Suitable for high-current protection in commercial buildings such as office complexes, shopping centers, and large retail outlets.
Motor Control Circuits: Protects motor-driven equipment, ensuring safety against overloads and short circuits.
Substations and Electrical Switchgear: Commonly used in substations and switchgear for protection and distribution of medium-voltage circuits.
Heavy Machinery and Equipment: Provides protection for heavy machinery circuits, preventing faults from damaging sensitive equipment.
Energy and Utilities: Used in energy distribution systems to safeguard electrical networks and components.