{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RQ4038-2AB00","brand":"Siemens","brandSlug":"siemens","productSlug":"3RQ4038-2AB00","canonicalUrl":"https://aoctrl.com/siemens/3RQ4038-2AB00","factsUrl":"https://aoctrl.com/api/mcp/products/3RQ4038-2AB00","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS 3RQ4 coupling relay, narrow design, 3RQ4038-2AB00 input coupler with integrated relay, 24 V AC/DC coil, 1 change-over contact, spring-loaded push-in terminal, 6.2 mm width, 6 A thermal current.","salesMarkdown":"The Siemens 3RQ4038-2AB00 is a SIRIUS 3RQ4 input coupler with an integrated relay, designed as a narrow-format interface between a 24 V AC/DC control signal and a switching contact. It provides one change-over contact rated for a thermal current of 6 A, packaged in a 6.2 mm wide housing with spring-loaded push-in terminals. The 24 V AC/DC coil means it accepts either supply type without rewiring — useful when the control voltage source isn't cleanly rectified or when mixing AC and DC circuits in the same panel. The single change-over gives you both a normally-open and normally-closed contact from one device, so a single coupler can both enable a run signal and flag a fault back to the PLC. That speeds up wiring on repetitive builds like pump panels or conveyor junction boxes. It belongs to the SIRIUS 3RQ4 family of narrow coupling relays, which are used to isolate low-level PLC or sensor outputs from higher-current loads, or to convert signal voltage levels between different control sections of a machine. RoHS compliance is confirmed since 26 September 2024, and REACH Article 33 information is published. No UL or CSA listing is stated in the available records, so if your site requires those marks, verify against the full nameplate documentation before committing the BOM line.","metaTitle":"Siemens 3RQ4038-2AB00 SIRIUS coupling relay, 24 V AC/DC, 6 A","metaDescription":"Siemens 3RQ4038-2AB00 SIRIUS 3RQ4 input coupler with relay, 24 V AC/DC, 1 change-over contact, push-in terminal, 6 A thermal current. Active production, RoHS compliant.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Motor Control Accessories"],"specifications":{"title":"3RQ4038-2AB00","Group Code":"R711","description":"input coupler with integrated relay, 24 V AC/DC, 1 change-over contact, spring-loaded terminal (push-in), 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":"Reach Information"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/efcb0ef4573e43e4ba5ebf7fdc0738e8.pdf","sourceUrl":"https://sieportal.siemens.com/en-ae/products-services/detail/3RQ4038-2AB00?tree=CatalogTree"},"ai":{"faq":[{"question":"What compliance documentation is available for this part?","answer":"RoHS compliance is confirmed effective 26 September 2024, and REACH Article 33 candidate list information is published. No UL, CSA, or IEC certification marks are listed in the available records."},{"question":"What are the key ratings for the 3RQ4038-2AB00?","answer":"It is a 24 V AC/DC input coupler with one change-over contact rated for a thermal current of 6 A. The housing is 6.2 mm wide with spring-loaded push-in terminals."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RQ4038-2AB00","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/3RQ4038-2AB00 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}}