The Schneider Electric ComPacT NSX250N Molded Case Circuit Breaker is a three‑pole (3P) low‑voltage protective device designed for electrical distribution systems in industrial and commercial applications.
Specifications (English)
Specification Details / Typical Value
Product Family Schneider Electric ComPacT NSX MCCBs
Device Type Molded Case Circuit Breaker (MCCB)
Model / Designation NSX250N 3P 250 A
Number of Poles 3‑pole (3P)
Rated Current (In) 250 A @ 40 °C
Rated Operational Voltage (Ue) 690 V AC, 50/60 Hz
Rated Insulation Voltage (Ui) 800 V AC (typical MCCB class)
Trip Unit Type Thermal‑magnetic (standard, e.g., TMD) — exact trip unit may vary by variant
Protection Functions Overload (thermal) + Short‑circuit (magnetic), with isolation capability
Utilisation Category Category A (general distribution)
Suitability for Isolation Yes, conforms to IEC/EN 60947‑2 standards
Mounting Mode Fixed mounting in panel/switchboard
Control / Operation Manual toggle / toggle handle
Pollution Degree Typical industrial (PD 3) acceptable
Standards Compliance IEC/EN 60947‑2 molded case circuit breaker standard
Dimensions (approx.) ~105 mm (W) × 161 mm (H) × 86 mm (D)