The Schneider NSC400K 3P 400A is a Molded Case Circuit Breaker (MCCB) designed to offer overcurrent protection for electrical circuits, particularly in industrial and commercial power distribution systems.
Parameters:
Rated Current (In): 400A
Poles: 3P (3-phase protection, ideal for industrial and commercial 3-phase circuits)
Rated Voltage (Un): 415V AC (common voltage for 3-phase systems)
Rated Frequency: 50/60Hz
Breaking Capacity (Icu): 50kA (maximum fault current the breaker can interrupt without being damaged)
Overload Protection: Yes, the MCCB provides thermal overload protection, ensuring it trips when the current exceeds the rated value for a prolonged period.
Short Circuit Protection: Yes, magnetic short circuit protection for instant disconnection in case of a short circuit.
Insulation Resistance: ≥ 100MΩ (at 500V DC)
Ambient Temperature Range: -25°C to +70°C (suitable for harsh environments)
Mechanical Durability: 20,000 operations
Electrical Durability: 10,000 operations (under rated current and fault conditions)
Auxiliary Contacts: Available for additional signaling and monitoring of the breaker’s status.