{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"A9Z08440","brand":"Schneider Electric","brandSlug":"schneider","productSlug":"A9Z08440","canonicalUrl":"https://aoctrl.com/schneider/A9Z08440","factsUrl":"https://aoctrl.com/api/mcp/products/A9Z08440","rawCanonicalId":null},"summary":{"shortDescription":"Schneider Electric Acti9 ID K RCCB, 4P, 40 A, 30 mA, Type AC-G, delayed, voltage-independent, EN/IEC 61008-1.","salesMarkdown":"The Schneider Electric A9Z08440 is a 4-pole residual current circuit breaker (RCCB) from the Acti9 ID K range, rated 40 A with 30 mA earth-leakage sensitivity. Voltage-independent tripping means the device clears a fault even if the line voltage is lost, which matters for safety in installations where the neutral could be interrupted. Rated operational voltage is 380...415 V AC 50 Hz, which covers standard three-phase 400 V line-to-line supplies across Europe and many other regions. The delayed time delay allows coordination with downstream 30 mA instantaneous RCDs, so a fault on a socket circuit trips the local RCD first, not the main switch. Breaking and making capacity is rated Idm 500 A / Im 500 A — sufficient for the prospective fault currents typical in a domestic or small commercial installation, but not for high-fault industrial switchboards. ## Installation notes Neutral is on the left. Terminals accept rigid conductors up to 35 mm² or flexible up to 25 mm², with a stripping length of 14 mm and a tightening torque of 3.5 N.m. The 8 x 9 mm pitch means it occupies 8 modular spaces (72 mm width,) on the rail. Ambient operating temperature range is -5...40 °C; storage range is -30...70 °C. Pollution degree 2 covers normal non-condensing environments. Designed to EN/IEC 61008-1, the standard for RCCBs. Carries OVE quality label. Rated impulse withstand voltage (Uimp) is 4 kV. The 8/20 µs impulse withstand of 200 A confirms it handles surge currents from lightning or switching without nuisance tripping. Electrical durability is 2000 cycles under AC-1 resistive load; mechanical durability is 5000 cycles.","metaTitle":"Schneider Electric A9Z08440 Acti9 ID K RCCB, 40 A, 30 mA, 4P","metaDescription":"Schneider Electric A9Z08440 Acti9 ID K RCCB, 40 A rated current, 30 mA sensitivity, 4P, Type AC-G, delayed, voltage-independent, EN/IEC 61008-1. Sourced to order against an RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Obsolete","categoryPath":["Residual Current Breakers (RCCB/RCBO)"],"specifications":{"Depth":"68 mm","Range":"Acti9","Width":"72 mm","Colour":"White","Height":"81 mm","Standards":"EN/IEC 61008-1","9 Mm Pitches":"8","Control type":"Toggle","Network type":"AC","Product name":"Acti9 ID K","Mounting mode":"Clip-on","Quality labels":"OVE","lifecycle_stage":"current","Mounting support":"DIN rail","Neutral position":"Left","Pollution degree":"2","Device short name":"ID K","Network frequency":"50/60 Hz","Poles description":"4P","Tightening torque":"3.5 N.m top or bottom","[In] rated current":"40 A","Electrical durability":"AC-1: 2000 cycles","Mechanical durability":"5000 cycles","Wire stripping length":"14 mm for top or bottom connection","Connections - terminals":"Biconnect top or bottom 1...35 mm² rigid Biconnect top or bottom 1...25 mm² flexible","IP degree of protection":"IP20 conforming to IEC 60529 IP40 (modular enclosure) conforming to IEC 60529","Device location in system":"Outgoer","Earth-leakage sensitivity":"30 mA","Product or component type":"Residual current circuit breaker (RCCB)","Contact position indicator":"No","Electromagnetic compatibility":"8/20 µs impulse withstand, 200 A conforming to EN/IEC 61008-1","[Ui] rated insulation voltage":"440 V AC 50 Hz","Earth-leakage protection class":"Type AC-G","[Ue] rated operational voltage":"380...415 V AC 50 Hz","Rated breaking and making capacity":"Idm 500 A Im 500 A","Ambient air temperature for storage":"-30...70 °C","Earth-leakage protection time delay":"Delayed","Residual current tripping technology":"Voltage independent","Ambient air temperature for operation":"-5...40 °C","[Uimp] rated impulse withstand voltage":"4 kV","Rated conditional short-circuit current":"GL63: Inc 4.5 kA K60: Inc 6 kA"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":"https://www.se.com/sg/en/product/A9Z08440/acti9-id-k-residual-current-circuit-break-4p-40a-30ma-type-acg-thv/","alternativesUrl":"https://aoctrl.com/api/mcp/products/A9Z08440/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy A9Z08440 and how do I get a price?","answer":"The A9Z08440 is sourced to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time."},{"question":"What is the closest alternative to A9Z08440 in the Acti9 ID K range?","answer":"Within the Acti9 ID K range, the key variant differences are pole count, rated current, and sensitivity. The A9Z08440 is a 4P, 40 A, 30 mA, Type AC-G, delayed RCCB. A 2P version with the same sensitivity and current rating would be a different order code; the selection depends on the number of poles required for the installation."},{"question":"What is A9Z08440's listed depth?","answer":"The A9Z08440 has a depth of 68 mm."},{"question":"What is A9Z08440's listed range?","answer":"The A9Z08440 belongs to the Acti9 range, specifically the ID K product line."},{"question":"What compliance documentation does Schneider Electric provide for A9Z08440?","answer":"The A9Z08440 is designed to EN/IEC 61008-1 and carries the OVE quality label. Standard compliance documentation (declaration of conformity, CE marking) is available from Schneider Electric for this product."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/schneider/A9Z08440","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/A9Z08440 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}}