{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"A9F44370","brand":"Schneider Electric","brandSlug":"schneider","productSlug":"A9F44370","canonicalUrl":"https://aoctrl.com/schneider/A9F44370","factsUrl":"https://aoctrl.com/api/mcp/products/A9F44370","rawCanonicalId":null},"summary":{"shortDescription":"Schneider Electric Acti9 iC60N, miniature circuit breaker, 0.5 A, C-curve, 3P, 50 kA Icu at 415 V AC, clip-on DIN rail.","salesMarkdown":"The Schneider Electric A9F44370 is an Acti9 iC60N miniature circuit breaker — a 3-pole, 0.5 A rated, C-curve device built to protect branch circuits in commercial and industrial panels. The 0.5 A rating is the continuous current it carries without tripping; the C-curve means its magnetic trip activates at 5 to 10 times rated current (8 x In ±20% here), so it handles moderate inrush from small transformers or control loads without nuisance tripping. ## DIN-rail fit and wiring details The 54 mm width (6 x 9 mm pitches) occupies three standard modular slots on the rail. Depth is 78.5 mm, height 85 mm — check gland-plate clearance if the panel is shallow. Terminals accept 1 to 25 mm² rigid or 1 to 16 mm² flexible; strip length is 14 mm. The thermal-magnetic trip unit gives 10,000 electrical cycles and 20,000 mechanical cycles — fine for a distribution board that sees infrequent switching. The trip indicator and contact position indicator give visual confirmation of state without needing a multimeter. Dual-certified to EN/IEC 60947-2 (industrial) and EN/IEC 60898-1 (household / similar) — that covers both the high breaking capacity (60947-2) and the standard MCB coordination (60898-1). Earth-leakage protection is handled by a separate block (not built-in).","metaTitle":"Schneider Electric A9F44370 Acti9 iC60N MCB, C-Curve 0.5A 3P","metaDescription":"Schneider Electric A9F44370 Acti9 iC60N miniature circuit breaker, 0.5 A rated, C-curve, 3-pole, 50 kA Icu breaking capacity. Sourced to order against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Obsolete","categoryPath":["Miniature Circuit Breakers (MCB)"],"specifications":{"Depth":"78.5 mm","Range":"Acti9","Width":"54 mm","Colour":"White","Height":"85 mm","Standards":"EN/IEC 60947-2 EN/IEC 60898-1","Curve code":"C","9 Mm Pitches":"6","Control type":"Toggle","Network type":"AC/DC","Product name":"Disbo iC60","Mounting mode":"Clip-on","Tropicalisation":"2 conforming to IEC 60068-1","lifecycle_stage":"current","Limitation class":"3 conforming to EN/IEC 60898-1","Local signalling":"Trip indicator","Mounting support":"Rail","Pollution degree":"3 conforming to EN/IEC 60947-2","Breaking capacity":"50 kA Icu at 12...133 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 50 kA Icu at 380...415 V AC 50/60 Hz conforming to EN/IEC 60947-2 25 kA Icu at 440 V AC 50/60 Hz conforming to EN/IEC 60947-2 10 kA Icu at 6000 A Icn at 400 V AC 50/60 Hz conforming to EN/IEC 60898-1","Device short name":"IC60N","Network frequency":"50/60 Hz","Poles description":"3P","Relative humidity":"95 % at 55 °C","Tightening torque":"2 N.m top or bottom","[In] rated current":"0.5 A","Overvoltage category":"IV","Trip unit technology":"Thermal-magnetic","Utilisation category":"Category A conforming to EN/IEC 60947-2","Electrical durability":"10000 cycles","Mechanical durability":"20000 cycles","Wire stripping length":"14 mm for top or bottom connection","Connections - terminals":"Single terminal (top or bottom) 1...25 mm² rigid Single terminal (top or bottom) 1...16 mm² flexible","IP degree of protection":"IP20 conforming to IEC 60529","Magnetic tripping limit":"8 x In +/- 20 %","Earth-leakage protection":"Separate block","Provision for padlocking":"Padlockable","Number of protected poles":"3","Product or component type":"Miniature circuit-breaker","Contact position indicator":"Yes","[Ui] rated insulation voltage":"500 V AC 50/60 Hz conforming to EN/IEC 60947-2","[Ue] rated operational voltage":"12...133 V AC 50/60 Hz 220...240 V AC 50/60 Hz 380...415 V AC 50/60 Hz 440 V AC 50/60 Hz <= 180 V DC","Ambient air temperature for storage":"-40...85 °C","Ambient air temperature for operation":"-35...70 °C","[Ics] rated service breaking capacity":"50 kA 100 % conforming to EN/IEC 60947-2 - 12...133 V AC 50/60 Hz 50 kA 100 % conforming to EN/IEC 60947-2 - 220...240 V AC 50/60 Hz 50 kA 100 % conforming to EN/IEC 60947-2 - 380...415 V AC 50/60 Hz 25 kA 100 % conforming to EN/IEC 60947-2 - 440 V AC 50/60 Hz 10 kA 100 % conforming to EN/IEC 60947-2 - <= 180 V DC","[Uimp] rated impulse withstand voltage":"6 kV conforming to EN/IEC 60947-2"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/a49fb132dc9f33d7628d0f183c9d8206.pdf","sourceUrl":"https://www.se.com/uk/en/product/A9F44370/acti9-ic60n-3p-05a-c-miniature-circuit-breaker/","alternativesUrl":"https://aoctrl.com/api/mcp/products/A9F44370/alternatives.json"},"ai":{"faq":[{"question":"What is the breaking capacity of the A9F44370?","answer":"50 kA Icu at 220...240 V AC and at 380...415 V AC per EN/IEC 60947-2; 25 kA Icu at 440 V AC; and 10 kA Icn at 400 V AC per EN/IEC 60898-1. That's a high-rupturing capacity for a 0.5 A MCB, letting it sit downstream of large transformers without needing upstream fuses."},{"question":"What is the closest alternative to the A9F44370?","answer":"Within the same Acti9 iC60N family, the closest alternative would be another 3-pole C-curve MCB at a different current rating — the physical footprint and breaking capacity are identical. There is no pin-compatible second-source outside the Schneider Acti9 range."},{"question":"Where can I buy the A9F44370 and how is it quoted?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution channels. Availability and current pricing are confirmed at quote time — submit an RFQ for a firm price and lead time."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/schneider/A9F44370","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/A9F44370 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}}