The Schneider NSX400N 3P 400A 5.3E is a high-performance molded case circuit breaker (MCCB) designed for the protection of electrical installations. Part of the NSX series, it provides reliable protection against overloads, short circuits, and earth faults.
Parameters:
Type: NSX400N
Number of Poles: 3P (3 poles)
Rated Current: 400A
Voltage Rating: 690V AC (maximum operational voltage)
Rated Insulation Voltage: 690V AC
Rated Operational Voltage: 690V AC
Breaking Capacity:
50kA at 415V AC
35kA at 690V AC
Tripping Characteristics:
MICROLOGIC 5.3E trip unit (electronic)
Adjustable protection settings for:
Overload Protection: Adjustable between 0.8 to 1 times rated current
Short-Circuit Protection: Adjustable between 5 to 12 times rated current
Instantaneous Tripping: Provides protection from severe short circuits
Earth Fault Protection: Optional (depending on configuration)
Mounting: Din Rail Mountable
Mechanical Endurance: 20,000 operations
Electrical Endurance: 10,000 operations
External Accessories:
Shunt Trip
Undervoltage Release
Auxiliary Contacts
Standards Compliance:
IEC/EN 60947-2 (MCCB standard)
IEC/EN 60898-1 (for residential protection)
UL 489 (for North America)