{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"A9R17440","brand":"Schneider Electric","brandSlug":"schneider","productSlug":"A9R17440","canonicalUrl":"https://aoctrl.com/schneider/A9R17440","factsUrl":"https://aoctrl.com/api/mcp/products/A9R17440","rawCanonicalId":null},"summary":{"shortDescription":"Schneider Electric Acti9 iID series, A9R17440, 4P residual current circuit breaker (RCCB), 40 A, 500 mA sensitivity, Type AC, selective, DIN rail mount.","salesMarkdown":"The Schneider Electric A9R17440 is a 4-pole Acti9 iID residual current circuit breaker (RCCB) rated for 40 A continuous current with a 500 mA earth-leakage sensitivity. It operates on 380...415 V AC networks at 50/60 Hz and uses voltage-independent residual current tripping technology, so it detects leakage faults without needing an external power supply to the trip coil — a practical advantage when the neutral or phase voltage is compromised. This is a Type AC device, meaning it responds to sinusoidal alternating residual currents. The selective (time-delayed) characteristic means it coordinates with downstream RCCBs — the A9R17440 holds during a short-duration fault to let the closer device clear first, which avoids nuisance tripping of the main feeder in a distribution board. Occupies 8 x 9 mm pitches (72 mm wide). Depth is 73.5 mm, height 91 mm. Terminals accept 1...35 mm² rigid or 1...25 mm² flexible conductors; wire stripping length is 14 mm, and the tightening torque is 3.5 N.m. IP20 on the body, IP40 inside a modular enclosure — standard for panelboard installation where the enclosure provides the washdown seal. ## Electrical ratings and durability Rated insulation voltage (Ui) is 500 V AC; rated impulse withstand (Uimp) is 6 kV. Breaking and making capacity (Idm/Im) is 1500 A. Electrical durability is 15,000 cycles under AC-1 resistive load; mechanical durability is 20,000 cycles. Pollution degree 3 suits it for industrial control panels where conductive dust or humidity is present. The 8/20 µs impulse withstand of 3000 A (per EN/IEC 61008-1) means it survives surge events common in industrial mains without nuisance tripping.","metaTitle":"Schneider Electric A9R17440 Acti9 iID RCCB, 40 A, 500 mA, 4P","metaDescription":"Schneider Electric A9R17440 Acti9 iID RCCB. 40 A rated current, 500 mA sensitivity, 4P, Type AC, selective. EN/IEC 61008-1. Sourced to order against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Residual Current Breakers (RCCB/RCBO)"],"specifications":{"Depth":"73.5 mm","Range":"Acti9","Width":"72 mm","Colour":"White","Height":"91 mm","Standards":"EN/IEC 61008-1","9 Mm Pitches":"8","Control type":"Toggle","Network type":"AC","Product name":"Acti9 iID","Mounting mode":"Clip-on","lifecycle_stage":"current","Mounting support":"DIN rail","Neutral position":"Left","Pollution degree":"3","Device short name":"iID","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: 15000 cycles","Mechanical durability":"20000 cycles","Wire stripping length":"14 mm for top or bottom connection","Connections - terminals":"Single terminal top or bottom 1...35 mm² rigid Single terminal top or bottom 1...25 mm² flexible Single terminal top or bottom 1...25 mm² flexible with ferrule","IP degree of protection":"IP20 conforming to IEC 60529 IP40 (modular enclosure) conforming to IEC 60529","Device location in system":"Outgoer","Earth-leakage sensitivity":"500 mA","Product or component type":"Residual current circuit breaker (RCCB)","Contact position indicator":"Yes","Locking options description":"Padlocking device","Electromagnetic compatibility":"8/20 µs impulse withstand, 3000 A conforming to EN/IEC 61008-1","[Ui] rated insulation voltage":"500 V AC 50/60 Hz","Earth-leakage protection class":"Type AC","[Ue] rated operational voltage":"380...415 V AC 50/60 Hz","Rated breaking and making capacity":"Idm 1500 A Im 1500 A","Ambient air temperature for storage":"-40...85 °C","Earth-leakage protection time delay":"Selective","Residual current tripping technology":"Voltage independent","Ambient air temperature for operation":"-5...60 °C","[Uimp] rated impulse withstand voltage":"6 kV","Rated conditional short-circuit current":"10 kA"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$396.23 – $412.08","priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":"https://www.se.com/ng/en/product/A9R17440/residual-current-circuit-breaker-rccb-acti9-iid-4p-40a-ac-type-500ma-selective/","alternativesUrl":"https://aoctrl.com/api/mcp/products/A9R17440/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy the A9R17440 and how do I get a price?","answer":"The A9R17440 is sourced to order against an RFQ through independent distribution. Submit a request for quote (RFQ) to confirm current availability and pricing at the time of your order."},{"question":"What is the A9R17440's earth-leakage sensitivity and type?","answer":"It has a 500 mA sensitivity and is Type AC (responds to sinusoidal alternating residual currents). The trip characteristic is selective (time-delayed) for coordination with downstream RCCBs."},{"question":"What standards does the A9R17440 comply with?","answer":"It complies with EN/IEC 61008-1 for residual current circuit breakers without integral overcurrent protection. The impulse withstand rating of 3000 A (8/20 µs) is also per that standard."},{"question":"What is the A9R17440's rated voltage and current?","answer":"Rated operational voltage is 380...415 V AC at 50/60 Hz. Rated current (In) is 40 A. Rated insulation voltage (Ui) is 500 V AC."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/schneider/A9R17440","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/A9R17440 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}}