The Schneider iNS 4P 320A is a 4-pole molded case circuit breaker (MCCB) from the iNS series, designed to provide high-performance protection for four-wire electrical systems (three-phase with neutral).
Specifications:
Type: Molded Case Circuit Breaker (MCCB)
Number of Poles: 4P (4 poles) – Suitable for three-phase systems with neutral (4-wire systems)
Current Rating: 320A
Rated Voltage: Typically 415V (for three-phase systems)
Rated Frequency: 50/60 Hz
Tripping Characteristics:
Thermal Protection: Disconnects the circuit when overload conditions are detected, preventing overheating and damage to equipment and wiring.
Magnetic Protection: Provides instantaneous disconnection during short-circuit conditions, protecting the system and connected equipment from high fault currents.
Adjustable Protection Settings: Both thermal and magnetic protection settings are adjustable, allowing for fine-tuning based on the system's requirements.
Residual Current Protection (RCD): Available in certain configurations for earth leakage protection, ensuring personnel safety by disconnecting the circuit when leakage currents exceed a certain threshold.
Breaking Capacity: 50 kA at 415V (maximum fault current the breaker can safely interrupt)
Protection Features:
Overload Protection: Disconnects the circuit when overload conditions persist, preventing damage to electrical components.
Short-Circuit Protection: Provides instantaneous protection during short circuits, preventing damage to wiring and connected equipment.
Earth Leakage Protection: Provides protection against earth leakage currents, ensuring safety from electric shock and minimizing the risk of electrical fires.
Manual Reset: After a fault is cleared, the breaker can be manually reset, restoring normal operation.