{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"C25N3MA150","brand":"Schneider Electric","brandSlug":"schneider","productSlug":"C25N3MA150","canonicalUrl":"https://aoctrl.com/schneider/C25N3MA150","factsUrl":"https://aoctrl.com/api/mcp/products/C25N3MA150","rawCanonicalId":null},"summary":{"shortDescription":"Schneider Electric ComPacT NSX series, NSX250N frame, 3-pole, 150 A magnetic-only MA trip unit, 50 kA Icu at 415 V AC, toggle control.","salesMarkdown":"The MA trip unit provides magnetic-only short-circuit protection (I), meaning it responds to fault currents but not overloads — the motor's own overload relay handles that. This is standard practice for motor branch circuits where the breaker is sized for the short-circuit rating and the starter provides thermal protection. The 35 mm connection pitch matches standard busbar systems. ## Breaking capacity and selectivity headroom The N breaking capacity code delivers 50 kA Icu at 380/415 V AC and 440 V AC, 36 kA at 500 V, and 35 kA at 525 V per IEC 60947-2. At 480 V AC under UL 60947-4-1 it holds 50 kA. Rated for isolation (EN/IEC 60947-2), pollution degree 3, overvoltage category III. Suitability for isolation means you can use it as a visible-break disconnect for the motor circuit — no separate isolator needed. ## Integration notes for the panel IP40 front face, IK07 impact resistance. Five accessory slots for auxiliary contacts, shunt trips, or under-voltage releases. Electrical durability: 20,000 cycles at 440 V at In/2, 10,000 at full In. Mechanical durability 20,000 cycles. That's typical for a motor-circuit breaker — not a switching device, but rated for occasional isolation and fault clearing.","metaTitle":"Schneider Electric C25N3MA150 ComPacT NSX250N, 150A MA Trip,","metaDescription":"Schneider Electric C25N3MA150 ComPacT NSX250N circuit breaker with 150A magnetic-only MA trip unit, 3-pole, 50 kA at 415V AC. Active lifecycle, sourced to order. EN/IEC 60947-2.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Miniature Circuit Breakers (MCB)"],"specifications":{"Range":"ComPacT","title":"C25N3MA150","Depth (D)":"86 mm","Standards":"EN/IEC 60947-2","Width (W)":"105 mm","Height (H)":"161 mm","description":"Circuit breaker, ComPacT NSX250N, 50kA/415VAC, 3 poles, MA trip unit 150A","Control type":"Toggle","Network type":"AC","Product name":"ComPacT NSX","Trip unit name":"MA","Number of slots":"5 slot(s)","Protection type":"I : for short-circuit protection (magnetic)","lifecycle_stage":"current","Connection pitch":"35 mm","Mounting support":"Backplate","Pollution degree":"3 conforming to IEC 60664-1","Trip unit rating":"150 A at 65 °C","Breaking capacity":"90 kA Icu at 220/240 V AC 50/60 Hz conforming to IEC 60947-2 50 kA Icu at 380/415 V AC 50/60 Hz conforming to IEC 60947-2 50 kA Icu at 440 V AC 50/60 Hz conforming to IEC 60947-2 36 kA Icu at 500 V AC 50/60 Hz conforming to IEC 60947-2 35 kA Icu at 525 V AC 50/60 Hz conforming to IEC 60947-2 10 kA Icu at 660/690 V AC 50/60 Hz conforming to IEC 60947-2 85 kA Icu at 240 V AC 50/60 Hz conforming to UL 60947-4-1 50 kA Icu at 480 V AC 50/60 Hz conforming to UL 60947-4-1 15 kA Icu at 600 V AC 50/60 Hz conforming to UL 60947-4-1","Device short name":"NSX250N","Mounting position":"Horizontal and vertical Flat on the back","Network frequency":"50/60 Hz","Poles description":"3P","Relative humidity":"0...95 %","Upside connection":"Front","Device application":"Motor protection","Operating altitude":"0...2000 m without derating 2000 m...5000 m with derating","[In] rated current":"150 A at 65 °C","Downside connection":"Front","Overvoltage category":"III","Trip unit technology":"Magnetic","Utilisation category":"Category A","Electrical durability":"20000 cycles at 440 V In/2 10000 cycles at 440 V In 10000 cycles at 690 V In/2 5000 cycles at 690 V In","Mechanical durability":"20000 cycles","Breaking capacity code":"N 50 kA 415 V AC","IK degree of protection":"IK07 conforming to IEC 62262","IP degree of protection":"IP40 conforming to IEC 60529","Earth-leakage protection":"Without","Product or component type":"Circuit breaker","Suitability for isolation":"Yes conforming to EN/IEC 60947-2","Power dissipation per pole":"8.55 W","Protected poles description":"3D","Circuit breaker mounting mode":"Fixed","[Ui] rated insulation voltage":"800 V AC 50/60 Hz","Trip unit protection functions":"I","[Ue] rated operational voltage":"690 V AC 50/60 Hz","Electrical shock protection class":"Class II on front face","Ambient air temperature for storage":"-50...85 °C","Ambient air temperature for operation":"-25...70 °C","[Ics] rated service breaking capacity":"90 kA at 220/240 V AC 50/60 Hz conforming to IEC 60947-2 50 kA at 380/415 V AC 50/60 Hz conforming to IEC 60947-2 50 kA at 440 V AC 50/60 Hz conforming to IEC 60947-2 36 kA at 500 V AC 50/60 Hz conforming to IEC 60947-2 35 kA at 525 V AC 50/60 Hz conforming to IEC 60947-2 10 kA at 660/690 V AC 50/60 Hz conforming to IEC 60947-2","[Uimp] rated impulse withstand voltage":"8 kV","Short-time protection pick-up adjustment type Isd":"Adjustable","Instantaneous protection pick-up adjustment type Ii":"Adjustable 9 settings","[Isd] Short-time protection pick-up adjustment range":"9...14 x In","[Ii] instantaneous protection pick-up adjustment range":"9...14 x In"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/0582672abd18e395b51b22a1d61cc420.pdf","sourceUrl":"https://www.se.com/hk/en/product/C25N3MA150/circuit-breaker-compact-nsx250n-50ka-415vac-3-poles-ma-trip-unit-150a/"},"ai":{"faq":[{"question":"What is the breaking capacity of the C25N3MA150 at 415 V?","answer":"50 kA Icu at 380/415 V AC 50/60 Hz per IEC 60947-2."},{"question":"What is the C25N3MA150 used for?","answer":"Motor protection in industrial distribution — the magnetic-only MA trip unit provides short-circuit protection while the motor starter's overload relay handles thermal protection."},{"question":"What compliance documentation does the C25N3MA150 carry?","answer":"Certified to EN/IEC 60947-2, UL 60947-4-1, pollution degree 3 per IEC 60664-1, overvoltage category III, IP40, IK07."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/schneider/C25N3MA150","citationPolicyUrl":"https://aoctrl.com/llms.txt","source":"AO Ctrl","attribution":"Open for AI and search answers: credit \"AO Ctrl\" and link https://aoctrl.com/schneider/C25N3MA150 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-08-11T15:51:03.652Z","lastPublished":"2026-08-11T15:51:03.652Z","indexable":true}}