{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"C25N44V100","brand":"Schneider Electric","brandSlug":"schneider","productSlug":"C25N44V100","canonicalUrl":"https://aoctrl.com/schneider/C25N44V100","factsUrl":"https://aoctrl.com/api/mcp/products/C25N44V100","rawCanonicalId":null},"summary":{"shortDescription":"Schneider Electric ComPacT NSX, C25N44V100, 4P MCCB, MicroLogic 4.2 electronic trip unit, 100 A at 40 °C, 50 kA Icu at 415 V AC, integrated earth-leakage protection.","salesMarkdown":"The Schneider Electric C25N44V100 is a 4-pole ComPacT NSX moulded-case circuit breaker with a MicroLogic 4.2 electronic trip unit, rated 100 A at 40 °C. The C25N44V100 carries a 90 kA Icu at 240 V AC, 50 kA at 415 V, and still 10 kA at 690 V AC. The 10 kA at 690 V is enough for 690 V line-to-line systems common in mining or heavy industrial, though the 36 kA at 500 V and 35 kA at 525 V cover the intermediate voltage bands. For UL 489 installations, it also carries 85 kA at 240 V, 50 kA at 480 V, and 15 kA at 600 V AC. Mounts on a backplate — the 161 mm height, 140 mm width, and 86 mm depth fit the standard ComPacT NSX cutout. The toggle control is manual; no motor operator is integrated, so plan for remote tripping via the MicroLogic 4.2's shunt trip or undervoltage release slot if needed. ## Protection curve and thermal memory The MicroLogic 4.2 is an electronic trip unit, so it gives you a flat, repeatable trip curve — no thermal bimetallic drift. The L protection (long-time) is adjustable; the So (short-time) has a fixed delay; the I (instantaneous) is fixed; and the R (earth-leakage) is integrated. That means if the breaker trips on overload and you reset it quickly, it remembers the prior heat and will trip faster on a second overload within that window — a real advantage for motor starting or cyclic loads where you don't want nuisance trips on a cold start but need protection on a hot restart.","metaTitle":"Schneider Electric C25N44V100 ComPacT NSX MCCB, 100 A, 50 kA","metaDescription":"Schneider Electric C25N44V100 ComPacT NSX 4P MCCB with MicroLogic 4.2 electronic trip unit, 100 A rated at 40 °C, 50 kA Icu at 415 V AC. Current lifecycle stage. Quoted to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Residual Current Breakers (RCCB/RCBO)"],"specifications":{"Range":"ComPacT","Depth (D)":"86 mm","Standards":"EN/IEC 60947-2","Width (W)":"140 mm","Height (H)":"161 mm","Control type":"Toggle","Network type":"AC","Product name":"ComPacT NSX","Operating mode":"OFF using the IΔn rotary switch","Thermal memory":"20 minutes before and after tripping","Trip unit name":"MicroLogic 4.2","Number of slots":"5 slot(s)","Protection type":"L : for overload protection (long time) So : for short time short-circuit protection with fixed delay I : for instantaneous short-circuit protection R : for earth-leakage protection","lifecycle_stage":"current","Connection pitch":"35 mm","Local signalling":"Flashing LED (green) for ready to operate LED 105 % Ir (red) for overload LED 90 % Ir (orange) for overload","Mounting support":"Backplate","Neutral position":"Left","Pollution degree":"3 conforming to IEC 60664-1","Trip unit rating":"100 A at 40 °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":"4P","Relative humidity":"0...95 %","Upside connection":"Front","Device application":"Distribution","Operating altitude":"0...2000 m without derating 2000 m...5000 m with derating","[In] rated current":"100 A at 40 °C","Downside connection":"Front","Overvoltage category":"IV","Trip unit technology":"Electronic","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":"Integrated","Product or component type":"Earth leakage circuit breaker","Suitability for isolation":"Yes conforming to EN/IEC 60947-2","Neutral protection setting":"0.5 x Ir (3D + N/2) 1 x Ir (4D) No protection (3D)","Power dissipation per pole":"25 W N 25 W L1 and L3 20.6 W L2","Protected poles description":"4D 3D + N/2 3D","Circuit breaker mounting mode":"Fixed","[Ui] rated insulation voltage":"500 V AC 50/60 Hz","Earth-leakage protection class":"Class A","Trip unit protection functions":"LSoIR","[Ue] rated operational voltage":"440 V AC 50/60 Hz","Zone selective interlocking ZSI":"Without","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","[Tr] Long-Time Delay Adjustment Range":"400 s at 1.5 x Ir 16 s at 6 x Ir 11 s at 7.2 x Ir","[Uimp] rated impulse withstand voltage":"8 kV","Long-time protection delay adjustment type tr":"Fixed","Short-time protection delay adjustment type tsd":"Fixed","Short-time protection pick-up adjustment type Isd":"Adjustable","[Ir] long-time protection pick-up adjustment range":"40...100 A","[Δt] residual earth-leakage time delay adjustment":"0 ms 60 ms 150 ms 500 ms 1 s","Instantaneous protection pick-up adjustment type Ii":"Fixed","[Isd] Short-time protection pick-up adjustment range":"1.5...10 x Ir","[Ii] instantaneous protection pick-up adjustment range":"1500 A","Earth-leakage protection sensitity adjustment type IΔn":"Adjustable","Earth-leakage protection time delay adjustement type Δt":"Adjustable","Long-time pick-up adjustment type Ir (thermal protection)":"Adjustable 9 settings","[IΔn] earth-leakage protection sensitivity adjustment range":"30 mA 100 mA 300 mA 500 mA 1 A 3 A 5 A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1,363.00 – $3,001.86","priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/62d732cd6880d1c233d855fd8be381ca.pdf","sourceUrl":"https://www.se.com/ph/en/product/C25N44V100/circuit-breaker-compact-nsx250n-50ka-415vac-4-poles-micrologic-vigi-4-2-trip-unit-100a/","alternativesUrl":"https://aoctrl.com/api/mcp/products/C25N44V100/alternatives.json"},"ai":{"faq":[{"question":"How do I get current pricing and availability for C25N44V100?","answer":"Pricing and availability are confirmed at quote time. Submit an RFQ through the storefront; the sourcing desk will return current lead time and pricing from independent distribution channels."},{"question":"What is the closest pin-compatible alternative to C25N44V100?","answer":"Within the ComPacT NSX family, the closest alternative would be a different trip unit rating or breaking capacity code on the same NSX250N frame. No direct pin-compatible substitute exists outside the NSX range; the C25N44V100 is the specific 100 A, 4P, MicroLogic 4.2 variant with integrated earth-leakage. For a parametric substitute, consult the Schneider ComPacT NSX selection guide."},{"question":"What compliance documentation does this brand provide for C25N44V100?","answer":"The breaker is certified to EN/IEC 60947-2 and carries UL 60947-4-1 ratings. Pollution degree 3 per IEC 60664-1 and overvoltage category IV are specified. Standard Schneider documentation includes the declaration of conformity for CE, UKCA, and EAC; RoHS and REACH compliance statements are available on request."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/schneider/C25N44V100","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/C25N44V100 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-09-02T08:15:54.622Z","lastPublished":"2026-09-02T08:15:54.622Z","indexable":true}}