{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"A9R44492","brand":"Schneider Electric","brandSlug":"schneider","productSlug":"A9R44492","canonicalUrl":"https://aoctrl.com/schneider/A9R44492","factsUrl":"https://aoctrl.com/api/mcp/products/A9R44492","rawCanonicalId":null},"summary":{"shortDescription":"Schneider Electric Acti9 RCCB-ID, residual current circuit breaker, 4P, 125 A, 300 mA, Type B, 400 V AC, 50 Hz, IEC/EN 61008-1.","salesMarkdown":"## 125 A Type B RCCB for 4-wire outgoing circuits The Schneider Electric A9R44492 is an Acti9 RCCB-ID residual current circuit breaker rated 125 A in a 4-pole (4P) configuration with 300 mA earth-leakage sensitivity and Type B protection class. Type B means it detects AC, pulsating DC, and smooth DC fault currents up to 1 kHz — essential for variable-speed drives, UPS systems, and PV inverters that can inject DC components into the earth path. The 125 A rating and 400 V AC operational voltage suit it for main incoming or large submain protection in three-phase panels. Rated breaking and making capacity is 1250 A at 400 V (IEC/EN 61008-1), which covers the prospective fault current typical of a 125 A outgoing circuit in a commercial or light-industrial distribution board. The instantaneous trip characteristic means no intentional delay — it clears earth faults within the standard response time. The 76 mm depth and 86 mm height are standard for the Acti9 modular range, so it fits existing distribution boards without re-spacing. Tunnel-type terminals accept up to 50 mm² rigid or 35 mm² flexible cable — enough for 125 A incoming tails. Tightening torque is 3 N.m; wire strip length 11 mm. IP20 finger protection on the terminals, IP40 for the modular enclosure. Padlockable toggle for lockout/tagout. The red/green trip indicator gives a clear visual on the residual current device status without opening the panel door. The A9R44492 is listed at a current lifecycle stage with no announced end-of-life or last-time-buy. It remains an active catalog item in the Acti9 range. ## Standards compliance and approvals Designed and tested to IEC/EN 61008-1, IEC/EN 61008-2-1, and IEC/EN 62423. Carries VDE quality label. Pollution degree 3 (industrial environment). The 8/20 µs impulse withstand rating of 3 kA means it survives surge events common in mains-fed panels without nuisance tripping.","metaTitle":"Schneider Electric A9R44492 Acti9 RCCB-ID, 125 A 4P Type B 3","metaDescription":"Schneider Electric A9R44492 Acti9 RCCB-ID residual current circuit breaker, 125 A rated current, 4 poles, Type B earth-leakage protection, 300 mA sensitivity, 400 V AC. IEC/EN 6100","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Residual Current Breakers (RCCB/RCBO)"],"specifications":{"Depth":"76 mm","Range":"Acti9","Width":"72 mm","Colour":"Grey","Height":"86 mm","Standards":"IEC/EN 61008-1 IEC/EN 61008-2-1 IEC/EN 62423","9 Mm Pitches":"8","Control type":"Toggle","Network type":"AC","Product name":"Acti9 RCCB-ID","Mounting mode":"Fixed","Quality labels":"VDE","lifecycle_stage":"current","Connection pitch":"18 mm between phases","Local signalling":"Red/green indicator Trip indicator","Mounting support":"35 mm symmetrical DIN rail","Neutral position":"Left","Pollution degree":"3","Device short name":"RCCB-ID","Network frequency":"50 Hz","Poles description":"4P","Tightening torque":"3 N.m","[In] rated current":"125 A","Electrical durability":"2000 cycles","Mechanical durability":"5000 cycles","Wire stripping length":"11 mm","Connections - terminals":"Tunnel type terminals2 cable(s) 1.5...16 mm² flexible Tunnel type terminals2 cable(s) 1.5...16 mm² rigid Tunnel type terminals1 cable(s) 1.5...50 mm² rigid Tunnel type terminals1 cable(s) 1.5...35 mm² flexible Tunnel type terminals1 cable(s) 1.5...35 mm² flexible with ferrule Tunnel type terminals2 cable(s) 1.5...16 mm² flexible with ferrule","IP degree of protection":"IP20 conforming to IEC/EN 60529 IP20 conforming to IEC/EN 62423 IP40 (modular enclosure) conforming to IEC/EN 60529 IP40 (modular enclosure) conforming to IEC/EN 62423","Provision for padlocking":"Padlockable","Device location in system":"Outgoer","Earth-leakage sensitivity":"300 mA","Product or component type":"Residual current circuit breaker (RCCB)","Contact position indicator":"Yes","Electromagnetic compatibility":"8/20 µs impulse withstand, 3 kA conforming to IEC/EN 61008-1 8/20 µs impulse withstand, 3 kA conforming to IEC/EN 61008-2-1","[Ui] rated insulation voltage":"400 V AC 50 Hz conforming to IEC/EN 61008-1 400 V AC 50 Hz conforming to IEC/EN 61008-2-1","Earth-leakage protection class":"Type B","[Ue] rated operational voltage":"400 V AC 50 Hz conforming to IEC/EN 61008-1 400 V AC 50 Hz conforming to IEC/EN 61008-2-1","Rated breaking and making capacity":"Im = 1250 A 400 V conforming to IEC/EN 61008-1 Im = 1250 A 230 V conforming to IEC/EN 61008-2-1","Ambient air temperature for storage":"-40...60 °C","Earth-leakage protection time delay":"Instantaneous","Residual current tripping technology":"Voltage independent","Ambient air temperature for operation":"-25...40 °C","[Uimp] rated impulse withstand voltage":"4 kV conforming to IEC/EN 61008-1 4 kV conforming to IEC/EN 61008-2-1","Rated conditional short-circuit current":"Inc 10 kA 125 A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":"https://www.se.com/il/en/product/A9R44492/residual-current-circuit-breaker-rccb-acti9-rccbid-4p-125a-b-type-300ma/","alternativesUrl":"https://aoctrl.com/api/mcp/products/A9R44492/alternatives.json"},"ai":{"faq":[{"question":"What is the A9R44492 used for?","answer":"It is a 4-pole 125 A Type B residual current circuit breaker (RCCB) for earth-leakage protection on three-phase outgoing circuits. Type B detection covers AC, pulsating DC, and smooth DC fault currents, making it suitable for circuits with variable-speed drives, UPS, or photovoltaic inverters."},{"question":"What is the closest alternative to the A9R44492?","answer":"Within the Acti9 range, the closest functional sibling is the A9R44491 (same 4P Type B 300 mA but rated 100 A instead of 125 A). The A9R44492 is the higher-current variant for 125 A circuits. No pin-compatible drop-in exists at a different current rating — the terminal size and pitch are identical, but the thermal rating differs."},{"question":"How do I get pricing and availability for the A9R44492?","answer":"Submit an RFQ through this listing. The part is sourced to order via independent distribution; current pricing and lead time are confirmed at quote time."},{"question":"What compliance documentation does Schneider provide for the A9R44492?","answer":"The A9R44492 is certified to IEC/EN 61008-1, IEC/EN 61008-2-1, and IEC/EN 62423, with a VDE quality label. Standard Schneider documentation includes a declaration of conformity covering the applicable EU directives (LV Directive, EMC Directive). RoHS and REACH compliance data is available on request."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/schneider/A9R44492","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/A9R44492 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}}