The Schneider Electric Masterpact NSX250N is a four-pole, molded case circuit breaker (MCCB) built on a 250A frame, with its electronic trip unit configured to protect a 200A three-phase + neutral load.
Parameters:
Parameter Value / Description
Product Line / Frame Size Masterpact NSX250
Breaking Capacity Standard (N Rating) – Typically 50 kA Icu at 415V AC.
Frame Current (Iu) 250 A
Set / Rated Operational Current (In) 200 A (Adjusted via the electronic trip unit).
Number of Poles 4 (L1, L2, L3, N)
Neutral Configuration Typically 4P4D (all 4 poles protected) or 4P3D (neutral switched only). 4P4D is recommended for 200A set current to protect the neutral.
Rated Operational Voltage (Ue) 400 V AC (3P+N)
Trip Unit (Must be specified) Electronic Micrologic. Configured or set to 200A.
Communication Capability Available on advanced "E" or "A" series trip units.
Mounting Withdrawable (standard) or Fixed.
Width (4-pole) Approx. 220 mm (for withdrawable version).