The Schneider Electric Masterpact NSX250H MIC2.2 3P3D P is a fully specified, three-pole, 250A molded case circuit breaker (MCCB) from the premium Masterpact NSX range. This model combines a High (H) breaking capacity, a basic Micrologic 2.2 electronic trip unit, a 3P3D (3 Protected Poles) fixed mounting version, and a Plug-in (P) connection kit. It is engineered for reliable feeder and distribution protection in demanding applications where high short-circuit withstand, adjustable electronic protection, and ease of installation/maintenance are required.
Parameter Value / Description
Product Line / Frame Size Masterpact NSX250
Breaking Capacity High (H Rating)
Rated Ultimate Breaking Capacity (Icu) 100 kA at 415V AC (IEC 60947-2).
Trip Unit Micrologic 2.2 Electronic Trip Unit
• Protection: Long-time (L), Short-time (S), Instantaneous (I). No ground fault (G) protection.
• Setting Range (Ir): Adjustable from 100A to 250A (approx. 0.4-1.0 x In).
• Display: Basic LCD for current measurement and alarm indication.
Rated Current (In) 250 A (Set via the Micrologic 2.2 unit within its adjustable range).
Poles & Protection 3P3D – Three Poles, all three are protected (L1, L2, L3).
Mounting & Connection Plug-in Version (P). This indicates the breaker is supplied with a fixed base that is permanently wired to the busbar and load. The breaker itself can be plugged into or unplugged from this base without tools, facilitating quick replacement or maintenance.
Rated Operational Voltage (Ue) Up to 690 V AC
Standard IEC 60947-2
Communication Not embedded in MIC2.2. Requires optional external communication module (e.g., OFC, CBE) for integration.
Width (with Plug-in Base) Approximately 165mm (for the 3-pole unit in its base).