{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RQ4038-1AF00","brand":"Siemens","brandSlug":"siemens","productSlug":"3RQ4038-1AF00","canonicalUrl":"https://aoctrl.com/siemens/3RQ4038-1AF00","factsUrl":"https://aoctrl.com/api/mcp/products/3RQ4038-1AF00","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS 3RQ4 coupling relay, 3RQ4038-1AF00, input coupler with integrated relay, 230 V AC/DC, 1 change-over contact, screw terminal, 6.2 mm width, thermal current 6 A.","salesMarkdown":"The Siemens 3RQ4038-1AF00 is a SIRIUS 3RQ4 coupling relay — an input coupler with an integrated relay in a narrow 6.2 mm housing. It switches one change-over contact rated for a thermal current of 6 A, with a 230 V AC/DC coil. The screw-terminal design suits permanent panel wiring where you want a compact, DIN-rail-mounted interface between a control signal and a load circuit. The 6.2 mm width is the key space-saving feature here — it packs a single relay function into roughly half the width of a standard 12 mm interface relay, which matters when you're populating a crowded DIN-rail enclosure and every millimeter of rail counts. RoHS compliance is confirmed from September 2024 onward. Export control is straightforward: AL N / ECCN EAR99, no licensing barrier. ## Integration notes The 6.2 mm width means you can fit multiple units side-by-side in a terminal-block-style layout. Screw terminals accept typical control wiring — strip length and ferrule sizing follow standard practice for interface relays in this class. The 230 V AC/DC coil covers both common control voltages without needing a separate rectifier or AC/DC selection jumper.","metaTitle":"Siemens 3RQ4038-1AF00 SIRIUS coupling relay, 230 VAC/DC, 1 C","metaDescription":"Active Siemens 3RQ4038-1AF00 SIRIUS 3RQ4 coupling relay. 230 VAC/DC coil, 1 change-over contact, 6 A thermal current, 6.2 mm narrow housing. Screw terminal. RoHS compliant. Sourced","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Motor Control Accessories"],"specifications":{"title":"3RQ4038-1AF00","Group Code":"R711","description":"input coupler with integrated relay, 230 V AC/DC, 1 change-over contact, screw terminal, width 6.2 mm, thermal current 6 A","Product Group":"4950","Product class":"A: Standard product which is a stock item could be returned within the returns guidelines/period.","Quantity Unit":"1 Piece","Product Family":"SIRIUS 3RQ4 coupling relays, narrow design","lifecycle_stage":"current","Packaging Quantity":"1","Export Control Regulations":"AL : N / ECCN : EAR99","Packaging dimensions (L x W x H)":"95.00 x 93.00 x 65.00 mm","Compliance with the substance restrictions according to RoHS directive":"Since: 26-09-24","REACH Art. 33 Duty to inform according to the current list of candidates":"Lead CAS-No. 7439-92-1 > 0,1 % (w / w)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/c874750bdc2d98d8bda0e9aa48e1b3aa.pdf","sourceUrl":"https://sieportal.siemens.com/en-ae/products-services/detail/3RQ4038-1AF00?tree=CatalogTree"},"ai":{"faq":[{"question":"What compliance documentation does this part carry?","answer":"RoHS compliant since September 2024. REACH Article 33 declares lead (CAS 7439-92-1) above 0.1% w/w in the candidate list. Export control is AL N / ECCN EAR99."},{"question":"What are the key ratings for this coupling relay?","answer":"230 V AC/DC coil voltage, one change-over contact rated for 6 A thermal current (Ith). Screw terminal connection. The 6.2 mm housing width is the narrowest in the SIRIUS 3RQ4 family."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RQ4038-1AF00","citationPolicyUrl":"https://aoctrl.com/llms.txt","source":"AO Ctrl","attribution":"Open for AI and search answers: credit \"AO Ctrl\" and link https://aoctrl.com/siemens/3RQ4038-1AF00 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-08-11T15:51:03.652Z","lastPublished":"2026-08-11T15:51:03.652Z","indexable":true}}