{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"DF3FN40","brand":"Schneider Electric","brandSlug":"schneider","productSlug":"DF3FN40","canonicalUrl":"https://aoctrl.com/schneider/DF3FN40","factsUrl":"https://aoctrl.com/api/mcp/products/DF3FN40","rawCanonicalId":null},"summary":{"shortDescription":"Schneider Electric TeSys GS DF3FN40, NFC cartridge fuse, 22 x 58 mm, gG curve, 40 A, 690 V AC, with striker, set of 10.","salesMarkdown":"The DF3FN40 is a 40 A NFC cartridge fuse from the TeSys fuse-disconnector range, sized 22 x 58 mm with a gG (general-purpose) characteristic. It carries a striker for local visual indication — when the fuse element clears, the striker pin pops, giving a clear blown-fuse flag at the panel without needing a separate indicator lamp. The 690 V AC rating covers standard 400 V three-phase distribution and motor branch circuits without derating concerns. Rated 40 A at 690 V AC, this fuse is sized for motor feeder and distribution branch protection where the gG curve provides overload and short-circuit clearance without nuisance opening on motor inrush. The 22 x 58 mm body is a standard European fuse-link size — fits existing NH-style fuse holders and disconnect switches in the TeSys GS range. The striker pin (local signalling) trips an auxiliary contact or simply flags the blown state at the fuse holder; if your panel relies on remote blown-fuse indication, confirm the holder has the mating microswitch.","metaTitle":"Schneider TeSys DF3FN40 NFC gG 40A Fuse, 22x58mm, Set of 10","metaDescription":"DF3FN40 NFC cartridge fuse, 40 A, 690 V AC, gG curve, 22 x 58 mm, with striker. Active production. TeSys GS range. Set of 10.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Contactors"],"specifications":{"title":"DF3FN40","Category":"22621-IEC PANEL ACCESSORIES","Fuse size":"22 x 58 mm","Fuse type":"NFC","Fuse Curve":"GG","description":"NFC cartridge fuses, TeSys GS, cylindrical, 22mm x 58mm, fuse type gG, 690VAC, 40A, with striker, set of 10 parts","lifecycle_stage":"current","Local signalling":"Striker","Quantity per Set":"Set of 10","Range of Product":"TeSys fuse-disconnector","Device short name":"DF3","Line Rated Current":"40 A 690 V","Nbr. of units in pkg.":"1","Product or Component Type":"Cartridge fuse","[Ue] rated operational voltage":"690 V AC"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/c33243a1a28aefa71976f0c245684639.pdf","sourceUrl":"https://www.se.com/ie/en/product/DF3FN40/nfc-cartridge-fuses-tesys-gs-cylindrical-22mm-x-58mm-fuse-type-gg-690vac-40a-with-striker-set-of-10-parts/"},"ai":{"faq":[{"question":"What is the closest pin-compatible alternative to DF3FN40 in this component family?","answer":"Within the TeSys GS range, the same 22 x 58 mm form factor is shared across the gG family. For a different current rating, the DF3FN25 (25 A) or DF3FN63 (63 A) use the same body size and striker feature. No direct pin-compatible alternative exists within the same rating — the DF3FN40 is the 40 A gG variant."},{"question":"What is DF3FN40's listed fuse size?","answer":"22 x 58 mm — a standard European cylindrical fuse-link dimension, compatible with TeSys GS fuse holders and disconnect switches."},{"question":"What is the rated voltage and current?","answer":"40 A continuous rated current at 690 V AC, gG characteristic for general-purpose overcurrent protection."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/schneider/DF3FN40","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/DF3FN40 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}}