{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"A9R12492","brand":"Schneider Electric","brandSlug":"schneider","productSlug":"A9R12492","canonicalUrl":"https://aoctrl.com/schneider/A9R12492","factsUrl":"https://aoctrl.com/api/mcp/products/A9R12492","rawCanonicalId":null},"summary":{"shortDescription":"Schneider Electric Acti9 RCCB-ID, residual current circuit breaker, 4P, 125 A, 100 mA, Type AC, 400 V AC, IEC/EN 61008-1, grey, 72 x 86 x 76 mm.","salesMarkdown":"## RCCB-ID – 125 A, 100 mA, Type AC, 4P The Schneider Electric A9R12492 is an Acti9 RCCB-ID residual current circuit breaker rated for 125 A continuous current at 400 V AC, 50 Hz, with 100 mA earth-leakage sensitivity and Type AC detection (sinusoidal AC residual currents only). It is a 4-pole, instantaneous-trip device (no time delay) built to IEC/EN 61008-1 and IEC/EN 61008-2-1, carrying VDE quality mark. 125 A rated current means this RCCB handles the full load of a large submain or a high-demand outgoing feeder in a 400 V three-phase distribution board. The 100 mA sensitivity is a common choice for general-purpose earth-fault protection where nuisance tripping from normal leakage (cables, filters, small loads) must be avoided — typical for circuits supplying fixed equipment rather than socket outlets. Type AC detection covers sinusoidal AC residual currents; it does not detect pulsating DC or smooth DC residuals, so it is not suitable for circuits with electronic loads (VFDs, switched-mode supplies, single-phase rectifiers) that generate non-sinusoidal leakage. Breaking capacity is rated at Im = 1250 A at both 400 V and 230 V — this is the making and breaking capacity for the integrated switching contacts under fault conditions. Snaps onto a 35 mm symmetrical DIN rail, 4-pole wide (72 mm width, 86 mm height, 76 mm depth). Tunnel-type terminals accept up to 50 mm² rigid or 35 mm² flexible cable per pole; two smaller conductors (1.5…16 mm²) can be paralleled. Tightening torque is 3 N·m. The IP20 rating suits enclosed distribution boards; the modular enclosure achieves IP40 inside the panel.","metaTitle":"Schneider Electric Acti9 A9R12492 RCCB-ID, 125 A, 100 mA, Ty","metaDescription":"Schneider Electric Acti9 A9R12492 RCCB-ID residual current circuit breaker, 125 A rated current, 100 mA sensitivity, Type AC, 4 poles, 400 V AC, IEC/EN 61008-1. Sourced to order ag","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","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 IP40 (modular enclosure) conforming to IEC/EN 60529","Provision for padlocking":"Padlockable","Device location in system":"Outgoer","Earth-leakage sensitivity":"100 mA","Product or component type":"Residual current circuit breaker (RCCB)","Contact position indicator":"Yes","Electromagnetic compatibility":"8/20 µs impulse withstand, 250 A conforming to IEC/EN 61008-1 8/20 µs impulse withstand, 250 A 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 AC","[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...85 °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":"$1,171.21","priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":"https://www.se.com/ng/en/product/A9R12492/residual-current-circuit-breaker-rccb-acti9-rccbid-4p-125a-ac-type-100ma/","alternativesUrl":"https://aoctrl.com/api/mcp/products/A9R12492/alternatives.json"},"ai":{"faq":[{"question":"What is A9R12492's listed depth?","answer":"The depth is 76 mm."},{"question":"What is A9R12492's listed range?","answer":"It belongs to the Acti9 range, specifically the RCCB-ID series of residual current circuit breakers."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/schneider/A9R12492","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/A9R12492 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}}