{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RQ4038-2AE00","brand":"Siemens","brandSlug":"siemens","productSlug":"3RQ4038-2AE00","canonicalUrl":"https://aoctrl.com/siemens/3RQ4038-2AE00","factsUrl":"https://aoctrl.com/api/mcp/products/3RQ4038-2AE00","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS 3RQ4 coupling relay, narrow design, 3RQ4038-2AE00, 115 V AC/DC input, 1 changeover contact, 6 A thermal current, push-in terminals, 6.2 mm width.","salesMarkdown":"The Siemens 3RQ4038-2AE00 is a SIRIUS 3RQ4 coupling relay in the narrow 6.2 mm housing. It takes a 115 V AC/DC control signal on the input side and switches a single changeover contact rated for 6 A thermal current. This is an input coupler with an integrated relay, meaning the input circuit and the contact circuit are galvanically isolated. The 115 V AC/DC coil covers both AC and DC control voltages on the same winding, so you don't need to spec a separate coil variant for mixed-voltage panels. The narrow profile packs more channels per linear inch of rail — useful when the gland plate is full or the enclosure depth is tight. The push-in terminals face forward, so wiring doesn't add width to the row. Packaged singly, dimensions 95 x 93 x 65 mm. The 6 A thermal current is the continuous carry rating at ambient; if you're grouping several relays in a confined enclosure, factor in the heat rise from the coil draw and contact I²R losses. RoHS compliant since 26 September 2024.","metaTitle":"Siemens 3RQ4038-2AE00 SIRIUS Coupling Relay, 115 VAC/DC, 6 A","metaDescription":"Siemens 3RQ4038-2AE00 SIRIUS 3RQ4 coupling relay. 115 V AC/DC input, 1 changeover contact, 6 A thermal current. Push-in terminals, 6.2 mm wide. Active production. RoHS compliant. S","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Motor Control Accessories"],"specifications":{"title":"3RQ4038-2AE00","Group Code":"R711","description":"input coupler with integrated relay, 115 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":"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/15cbc1a1ad0b3ecbe5bee24465086c0b.pdf","sourceUrl":"https://sieportal.siemens.com/en-ae/products-services/detail/3RQ4038-2AE00?tree=CatalogTree"},"ai":{"faq":[{"question":"What compliance documentation is available for this relay?","answer":"RoHS compliance effective 26 September 2024. REACH Article 33 declares lead (CAS 7439-92-1) above 0.1% w/w. Export control is AL: N / ECCN: EAR99. The manufacturer provides a declaration of conformity; no UL or CSA listing is stated in the product record."},{"question":"What is the group code and product group for this part?","answer":"Group Code R711; Product Group 4950. These are Siemens internal classification codes used for catalog sorting and cross-reference lookups."},{"question":"What is the closest alternative in the same family?","answer":"Within the SIRIUS 3RQ4 narrow design family, the closest alternative would differ by coil voltage or contact configuration. The 3RQ4038-2AE00 is the 115 V AC/DC, 1 changeover variant. A 24 V DC version (3RQ4038-1AE00) or a 230 V AC version (3RQ4038-3AE00) shares the same 6.2 mm footprint and push-in terminals but changes the control voltage. Pinout and terminal layout are identical across the family."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RQ4038-2AE00","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/3RQ4038-2AE00 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}}