{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"A9L8F492","brand":"Schneider Electric","brandSlug":"schneider","productSlug":"A9L8F492","canonicalUrl":"https://aoctrl.com/schneider/A9L8F492","factsUrl":"https://aoctrl.com/api/mcp/products/A9L8F492","rawCanonicalId":null},"summary":{"shortDescription":"Schneider Electric Acti9 iPRD F40, Type 2+3 surge protection cartridge, 40 kA max discharge, <25 ns response, 340 V AC continuous, plug-in mount.","salesMarkdown":"The Schneider Electric A9L8F492 is a Type 2+3 surge protection cartridge from the Acti9 iPRD F40 range, designed for electrical distribution networks. It plugs into a compatible iPRD F40r base (1P+N or 3P+N) and provides L-N (differential mode) protection using MOV technology. The integrated fuse means no separate external overcurrent protection is needed for the SPD path — one less part to spec and wire. Rated for a maximum discharge current of 40 kA (differential mode L/N) with a nominal discharge current of 20 kA — this is the surge it can repeatedly handle without degrading. The < 25 ns response time means it clamps fast enough to protect sensitive electronics like PLC power supplies or fieldbus interfaces downstream. The voltage protection level (Up) is < 1.5 kV in differential mode. The temporary overvoltage (TOV) withstand is 340 V L/N for 5 seconds; above that it fails safely at 442 V for 120 minutes. Short-circuit withstand is 25 kA, so if a surge causes the MOV to fail short, the integrated fuse clears the fault without upstream breaker coordination issues. The cartridge fits a standard 18 mm wide module slot on the DIN rail via the base — one module width per pole. This is the replaceable cartridge for the Acti9 iPRD F40r base. You do not mount it directly to the rail; it plugs into the base unit (mounting support: into SPD module). The base stays wired to the panel; the cartridge swaps in and out for replacement after a surge event. Local signalling uses a green flag for operating state and a red flag for fault indication — no need to break out a meter to check if the MOV is still good. Rated for earthing systems TT and TN-S, which covers the vast majority of industrial and commercial distribution boards. Relative humidity 5...95 % and altitude up to 2000 m are standard for this class.","metaTitle":"Schneider Electric A9L8F492 Acti9 iPRD F40 Cartridge, Type 2","metaDescription":"Schneider Electric A9L8F492 Acti9 iPRD F40 surge protection cartridge. Type 2+3, 40 kA max discharge, <25 ns response. Active lifecycle, sourced to order. Request RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Fuses & Fuse Holders"],"specifications":{"Depth":"58 mm","Width":"18 mm","title":"A9L8F492","Colour":"White (RAL 9003)","Height":"45 mm","Material":"Thermoplastic","Standards":"IEC 61643-11:2011 BS EN 61643-11:2012+A11:2018","description":"Cartridge, Acti9 iPRD F40, for surge arrester iPRD F40r 1P+N/3P+N, type 2+3, L-N protection mode, with fuse","Mounting mode":"Plug-in","Response time":"< 25 ns","Quality labels":"UKCA","Earthing system":"TT TN-S","lifecycle_stage":"current","Condition of use":"Fuse (integrated)","Local signalling":"Operating state: flag (green) Fault indication: flag (red)","Mounting support":"Into SPD module","Range Of Product":"Acti9","Device short name":"iPRD F40","Relative humidity":"5...95 %","Operating altitude":"0...2000 m","Product destination":"Surge protection device iPRD F40r 1P + N Surge protection device iPRD F40r 3P + N","Surge arrester type":"Electrical distribution network","Short-circuit withstand":"25 kA","Maximum discharge current":"Differential mode: 40 kA L/N","Nominal discharge current":"Differential mode: 20 kA (L/N)","Product or component type":"Cartridge","Surge arrester class type":"Type 2 + 3","Surge arrester technology":"MOV","[Uoc] open circuit voltage":"6000 V differential mode L/N","[Ut] temporary overvoltage":"340 V L/N 5 s withstand 442 V L/N 120 min safe failure mode","[Ue] rated operational voltage":"240 V AC 50/60 Hz","Ambient air temperature for operation":"-40...85 °C","Maximum [Up] voltage protection level":"Differential mode <1.5 kV L/N","[Uc] maximum continuous operating voltage":"Differential mode: 340 V L/N"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":"https://www.se.com/uk/en/product/A9L8F492/cartridge-acti9-iprd-f40-for-surge-arrester-iprd-f40r-1p+n-3p+n-type-2+3-ln-protection-mode-with-fuse/"},"ai":{"faq":[{"question":"What is the closest alternative to A9L8F492 in the Acti9 range?","answer":"The A9L8F492 is the Type 2+3 cartridge for the iPRD F40 series. The same base accepts the same cartridge; there is no pin-compatible alternative within the family that changes the protection level. If you need a different discharge current rating, you would move to a different iPRD series (e.g., iPRD F20 or iPRD F65) which uses a different cartridge and base."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/schneider/A9L8F492","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/A9L8F492 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}}