{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RQ4038-1AE01","brand":"Siemens","brandSlug":"siemens","productSlug":"3RQ4038-1AE01","canonicalUrl":"https://aoctrl.com/siemens/3RQ4038-1AE01","factsUrl":"https://aoctrl.com/api/mcp/products/3RQ4038-1AE01","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS 3RQ4 coupling relay, narrow design, 3RQ4038-1AE01, 115 V AC/DC coil, 1 change-over contact, screw terminal, 6.2 mm width, 6 A thermal current, hard gold-plated contacts.","salesMarkdown":"The Siemens 3RQ4038-1AE01 is a SIRIUS 3RQ4 coupling relay in the narrow 6.2 mm housing, designed to isolate and switch control signals in industrial automation panels. It accepts a 115 V AC/DC control voltage and routes it through one change-over contact rated for 6 A thermal current. The hard gold-plated contacts handle low-level switching reliably, making it suitable for PLC output isolation or signal conditioning in mixed-voltage cabinets. The 6 A thermal current (Ith) is the continuous carry rating through the closed contact — it governs the maximum resistive load the relay can pass without derating. For motor or inductive loads, you'll need to apply the appropriate AC/DC utilization category derating; the 6 A figure is the ceiling for resistive switching. The 115 V AC/DC coil gives you flexibility: it runs on either supply type without a separate rectifier, simplifying panel wiring on mixed-voltage lines. At 6.2 mm wide, this relay occupies minimal DIN-rail space — roughly half the width of a standard 12.5 mm interface relay. In a dense control cabinet, that translates to more I/O channels per meter of rail, or room for additional surge suppressors and ferrules. This relay has been RoHS-compliant since 26 September 2024, meeting the substance restrictions under EU Directive 2011/65/EU. No UL or CSA listing appears in the available spec record; verify local code acceptance with your Siemens representative if your jurisdiction requires third-party certification.","metaTitle":"Siemens 3RQ4038-1AE01 SIRIUS 3RQ4 Coupling Relay, 115 V AC/D","metaDescription":"Siemens SIRIUS 3RQ4038-1AE01 coupling relay, 115 V AC/DC coil, 1 change-over contact, 6 A thermal current, screw terminal, 6.2 mm wide. Active production. RFQ for pricing.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Motor Control Accessories"],"specifications":{"title":"3RQ4038-1AE01","Group Code":"R711","description":"input coupler with integrated relay, 115 V AC/DC, 1 change-over contact, screw terminal, width 6.2 mm, thermal current 6 A, hard gold-plated","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/fa2fa67ed4ceac30ba71fc610f4b33c0.pdf","sourceUrl":"https://sieportal.siemens.com/en-ae/products-services/detail/3RQ4038-1AE01?tree=CatalogTree"},"ai":{"faq":[{"question":"What is the group code and product group for this relay?","answer":"The group code is R711 and the product group is 4950. These are Siemens internal classification codes used for logistics and catalog filtering."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RQ4038-1AE01","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/3RQ4038-1AE01 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}}