{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"18667","brand":"Schneider Electric","brandSlug":"schneider","productSlug":"18667","canonicalUrl":"https://aoctrl.com/schneider/18667","factsUrl":"https://aoctrl.com/api/mcp/products/18667","rawCanonicalId":null},"summary":{"shortDescription":"Miniature circuit breaker (MCB), Acti9 NG125N, 4P, 100A, B curve, 25kA (IEC/EN 60947-2)","salesMarkdown":null,"metaTitle":null,"metaDescription":null,"metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Obsolete","categoryPath":[],"specifications":{"Depth":"81 mm","Range":"Acti9","Width":"108 mm","Height":"103 mm","Standards":"EN/IEC 60947-2","Curve code":"B","9 Mm Pitches":"12","Control type":"Toggle Manual tripping test","Network type":"AC DC","Product name":"Acti9 NG125","Mounting mode":"Clip-on","Tropicalisation":"2 conforming to IEC 60068-1","lifecycle_stage":"unknown","Local signalling":"ON/OFF indication Trip indicator","Mounting support":"35 mm symmetrical DIN rail","Pollution degree":"3 conforming to IEC 60947-2","Breaking capacity":"20 kA Icu at 10 kA Icu at 500 V AC 50/60 Hz conforming to EN/IEC 60947-2 20 kA Icu at 440 V AC 50/60 Hz conforming to EN/IEC 60947-2 25 kA Icu at 380...415 V AC 50/60 Hz conforming to EN/IEC 60947-2 50 kA Icu at 220...240 V AC 50/60 Hz conforming to EN/IEC 60947-2","Device short name":"NG125N","Mounting position":"Vertical","Network frequency":"50/60 Hz","Poles description":"4P","Relative humidity":"95 % at 55 °C","Tightening torque":"6 N.m","Device application":"Distribution","[In] rated current":"100 A at 40 °C","Overvoltage category":"IV","Trip unit technology":"Thermal-magnetic","Utilisation category":"Category A conforming to IEC 60947-2","Electrical durability":"5000 cycles","Mechanical durability":"20000 cycles","Wire stripping length":"20 mm","Connections - terminals":"Tunnel type terminals16...70 mm² rigid Tunnel type terminals10...50 mm² flexible","IK degree of protection":"IK05 conforming to EN/IEC 62262","IP degree of protection":"IP20 conforming to IEC 60529","Magnetic tripping limit":"4 x In","Earth-leakage protection":"Separate block","Provision for padlocking":"Padlockable","Number of protected poles":"4","Product or component type":"Miniature circuit-breaker","Suitability for isolation":"Yes conforming to IEC 60947-2","Contact position indicator":"Yes","Locking options description":"Integrated padlocking","[Ui] rated insulation voltage":"690 V AC 50/60 Hz conforming to EN/IEC 60947-2","[Ue] rated operational voltage":"380...415 V AC 50/60 Hz 500 V AC 50/60 Hz 220...240 V AC 50/60 Hz 440 V AC 50/60 Hz","Ambient air temperature for storage":"-40...70 °C","Ambient air temperature for operation":"-30...70 °C","[Ics] rated service breaking capacity":"37.5 kA 75 % conforming to EN/IEC 60947-2 - 220...240 V AC 50/60 Hz 18.75 kA 75 % conforming to EN/IEC 60947-2 - 380...415 V AC 50/60 Hz 15 kA 75 % conforming to EN/IEC 60947-2 - 440 V AC 50/60 Hz 7.5 kA 75 % conforming to EN/IEC 60947-2 - 500 V AC 50/60 Hz 20 kA 100 % conforming to EN/IEC 60947-2 - <= 500 V DC","[Uimp] rated impulse withstand voltage":"8 kV conforming to EN/IEC 60947-2","Comb busbar and distribution block compatibility":"NO"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$243.08","priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/da22c9194fdc795e9a5682a81fe84170.pdf","sourceUrl":"https://www.se.com/ie/en/product/18667/miniature-circuit-breaker-mcb-acti9-ng125n-4p-100a-b-curve-25ka-iec-en-609472/","alternativesUrl":"https://aoctrl.com/api/mcp/products/18667/alternatives.json"},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/schneider/18667","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/18667 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-09-02T08:21:01.794Z","lastPublished":"2026-09-02T08:21:01.794Z","indexable":true}}