{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"18778","brand":"Schneider Electric","brandSlug":"schneider","productSlug":"18778","canonicalUrl":"https://aoctrl.com/schneider/18778","factsUrl":"https://aoctrl.com/api/mcp/products/18778","rawCanonicalId":null},"summary":{"shortDescription":"Miniature circuit breaker (MCB), Acti9 NG125L, 1P, 16A, C curve, 50kA (IEC/EN 60947-2)","salesMarkdown":null,"metaTitle":null,"metaDescription":null,"metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Obsolete","categoryPath":["1-Pole MCB (DIN Rail)"],"specifications":{"Depth":"81 mm","Range":"Acti9","Width":"27 mm","Height":"103 mm","Standards":"EN/IEC 60947-2","Curve code":"C","9 Mm Pitches":"3","Control type":"Manual tripping test Toggle","Network type":"DC AC","Product name":"Acti9 NG125","Mounting mode":"Clip-on","Tropicalisation":"2 conforming to IEC 60068-1","lifecycle_stage":"unknown","Local signalling":"Trip indicator ON/OFF indication","Mounting support":"35 mm symmetrical DIN rail","Pollution degree":"3 conforming to IEC 60947-2","Breaking capacity":"50 kA Icu at 220...240 V AC 50/60 Hz conforming to EN/IEC 60947-2 100 kA Icu at 110...130 V AC 50/60 Hz conforming to EN/IEC 60947-2 50 kA Icu at 12 V DC conforming to EN/IEC 60947-2 50 kA Icu at 125 V DC conforming to EN/IEC 60947-2 36 kA Icu at 12.5 kA Icu at 380...415 V AC 50/60 Hz conforming to EN/IEC 60947-2","Device short name":"NG125L","Mounting position":"Vertical","Network frequency":"50/60 Hz","Poles description":"1P","Relative humidity":"95 % at 55 °C","Tightening torque":"3.5 N.m","Device application":"Distribution","Operating altitude":"2000 m","[In] rated current":"16 A at 40 °C","Overvoltage category":"IV","Trip unit technology":"Thermal-magnetic","Utilisation category":"Category A conforming to IEC 60947-2","Electrical durability":"10000 cycles","Mechanical durability":"20000 cycles","Wire stripping length":"20 mm","Connections - terminals":"Tunnel type terminals1.5...50 mm² rigid Tunnel type terminals1...35 mm² flexible","IK degree of protection":"IK05 conforming to EN/IEC 62262","IP degree of protection":"IP20 conforming to IEC 60529","Magnetic tripping limit":"8 x In +/- 20 %","Earth-leakage protection":"Without","Provision for padlocking":"Padlockable","Number of protected poles":"1","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 125 V DC 12 V DC 220...240 V AC 50/60 Hz 110...130 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 75 kA 75 % conforming to EN/IEC 60947-2 - 110...130 V AC 50/60 Hz 9.37 kA 75 % conforming to EN/IEC 60947-2 - 380...415 V AC 50/60 Hz 50 kA 100 % conforming to EN/IEC 60947-2 - 60 V DC 50 kA 100 % conforming to EN/IEC 60947-2 - 125 V DC","[Uimp] rated impulse withstand voltage":"8 kV conforming to EN/IEC 60947-2","Comb busbar and distribution block compatibility":"YES"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$64.23","priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/d5a5a26dca34724aa143c6d3a378e039.pdf","sourceUrl":"https://www.se.com/hk/en/product/18778/miniature-circuit-breaker-mcb-acti9-ng125l-1p-16a-c-curve-50ka-iec-en-609472/","alternativesUrl":"https://aoctrl.com/api/mcp/products/18778/alternatives.json"},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/schneider/18778","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/18778 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}}