{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"A9Y75740","brand":"Schneider Electric","brandSlug":"schneider","productSlug":"A9Y75740","canonicalUrl":"https://aoctrl.com/schneider/A9Y75740","factsUrl":"https://aoctrl.com/api/mcp/products/A9Y75740","rawCanonicalId":null},"summary":{"shortDescription":"Schneider Electric Acti9 Vigi iCG40 add-on residual current device, A9Y75740, 3P+N, 40 A, 300 mA, Type A-SI, 400 V AC, clip-on DIN rail.","salesMarkdown":"The Schneider Electric A9Y75740 is an add-on residual current device (RCD) from the Acti9 Vigi iCG40 range, designed to clip onto the outgoing side of a compatible Acti9 MCB. It provides earth-leakage protection for a 3P+N circuit, rated at 40 A with 300 mA sensitivity, Type A-SI (Super Immunised) — meaning it handles pulsed DC residual currents and resists nuisance tripping from high-frequency harmonics or transient surges common on modern electronic loads. Rated operational voltage is 400 V AC at 50/60 Hz, with an insulation voltage of 440 V AC and impulse withstand of 4 kV — all conforming to EN/IEC 61009-2-1. That 4 kV impulse rating means it can handle switching transients and indirect lightning surges without flashover, critical for group incomer positions in distribution boards. The 300 mA sensitivity is instantaneous (no intentional time delay), so it trips as soon as the leakage exceeds that threshold. Type A-SI (Super Immunised) adds immunity to high-frequency currents up to 1 kHz, making it suitable for circuits with variable-speed drives, UPS systems, or LED lighting where standard Type A RCDs might false-trip. Mechanical durability is rated at 20,000 cycles, electrical at 10,000 cycles — figures that align with typical commercial and light industrial panel duty where the RCD is not switched daily under load. Clip-on mounting to DIN rail, 9 mm pitches occupied: 6 (108 mm width). The device is an add-on that screws directly to the load side of an Acti9 MCB — no additional wiring between the MCB and RCD. Neutral is on the left, poles 3P + N. Tunnel-type terminals accept 1…16 mm² rigid or 1…10 mm² flexible on top; wire stripping length is 14 mm for top connection. Tightening torque: 2 N·m. IP20 on the device body, IP40 within a modular enclosure — standard for distribution boards inside a dry environment. Pollution degree 3 per EN/IEC 61009-2-1, meaning it tolerates conductive pollution (condensation, light dust) typical of industrial panels not hermetically sealed.","metaTitle":"Schneider Electric A9Y75740 Acti9 Vigi iCG40 RCD, 40A 300mA","metaDescription":"Schneider Electric A9Y75740 Acti9 Vigi iCG40 add-on RCD, 40 A rated, 300 mA sensitivity, Type A-SI, 3P+N, 400 V AC, clip-on DIN rail mount. Active production. Sourced to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Obsolete","categoryPath":["Residual Current Breakers (RCCB/RCBO)"],"specifications":{"Depth":"74 mm","Range":"Acti9","Width":"108 mm","Colour":"White","Height":"99.5 mm","Standards":"EN/IEC 61009-2-1","9 Mm Pitches":"6","Network type":"AC","Product name":"Acti9 Vigi iCG40","Mounting mode":"Clip-on","lifecycle_stage":"current","Local signalling":"Fault indication","Mounting support":"DIN rail","Neutral position":"Left","Pollution degree":"3 conforming to EN/IEC 61009-2-1","Device short name":"Vigi iCG40","Network frequency":"50/60 Hz","Poles description":"3P + N","Relative humidity":"95 % at 55 °C","Tightening torque":"2 N.m top","Operating altitude":"2000 m","[In] rated current":"40 A","Electrical durability":"10000 cycles","Mechanical durability":"20000 cycles","Wire stripping length":"14 mm for top connection","Connections - terminals":"Tunnel type terminal top 1...16 mm² rigid Tunnel type terminal top 1...10 mm² flexible","IP degree of protection":"IP20 conforming to IEC 60529 IP40 (modular enclosure) conforming to IEC 60529","Device location in system":"Group incomer","Earth-leakage sensitivity":"300 mA","Product or component type":"Add-on residual current device","Electrical connection to mcb":"By screws","[Ui] rated insulation voltage":"440 V AC 50/60 Hz conforming to EN/IEC 61009-2-1","Earth-leakage protection class":"Type A-SI (Super Immunised)","[Ue] rated operational voltage":"400 V AC 50/60 Hz","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...60 °C","[Uimp] rated impulse withstand voltage":"4 kV conforming to EN/IEC 61009-2-1"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":"https://www.se.com/nl/en/product/A9Y75740/addon-residual-current-devices-acti9-vigi-icg40-3p+n-40-a-300-ma-asi-type/","alternativesUrl":"https://aoctrl.com/api/mcp/products/A9Y75740/alternatives.json"},"ai":{"faq":[{"question":"What is A9Y75740 used for?","answer":"It is an add-on residual current device (RCD) that clips onto an Acti9 MCB to provide earth-leakage protection for a 3P+N circuit, rated 40 A, 300 mA, Type A-SI."},{"question":"What compliance documentation does Schneider Electric provide for A9Y75740?","answer":"The device is certified to EN/IEC 61009-2-1, with IP20/IP40 protection per IEC 60529. Standard documentation includes the manufacturer's declaration of conformity; specific RoHS, REACH, or UL documentation should be requested at quote time."},{"question":"Where can I buy A9Y75740 and how is it quoted?","answer":"The A9Y75740 is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time — no stock or price figures are published here."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/schneider/A9Y75740","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/A9Y75740 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}}