{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RQ4050-1SM50","brand":"Siemens","brandSlug":"siemens","productSlug":"3RQ4050-1SM50","canonicalUrl":"https://aoctrl.com/siemens/3RQ4050-1SM50","factsUrl":"https://aoctrl.com/api/mcp/products/3RQ4050-1SM50","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS 3RQ4 coupling relay, output optocoupler, 24 V DC, 1 NO contact, screw terminal, 6.2 mm width, 3 A thermal current.","salesMarkdown":"The Siemens 3RQ4050-1SM50 is an output optocoupler relay from the SIRIUS 3RQ4 series, designed for isolating and switching DC control signals in industrial control panels. The 6.2 mm narrow housing saves DIN-rail space in dense panel layouts. The 3 A thermal current (Ith) is the continuous carry rating through the closed contact under free-air conditions. For switching inductive loads, derate per the load's inrush — the 3 A figure governs the steady-state, not the break current. RoHS compliance is confirmed from 26 September 2024. No UL or CSA listing is stated in the available documentation. The 6.2 mm width per unit allows high-density mounting on a standard DIN rail. Packaging dimensions of 95 x 93 x 65 mm reflect the individual unit carton. For panel fill-factor calculations, use the 6.2 mm width per relay; the depth and height are within standard enclosure clearance for DIN-rail components.","metaTitle":"Siemens 3RQ4050-1SM50 SIRIUS 3RQ4 Coupling Relay, 24 V DC, 1","metaDescription":"Siemens 3RQ4050-1SM50 SIRIUS 3RQ4 output optocoupler relay. 24 V DC coil, 1 NO contact, screw terminal, 6.2 mm wide, 3 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":"3RQ4050-1SM50","Group Code":"R711","description":"output optocoupler, 24 V DC, 1 NO contact, screw terminal, width 6.2 mm, thermal current 3 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/55e93d2b9e3bb05f0e7db240506d52fe.pdf","sourceUrl":"https://sieportal.siemens.com/en-ae/products-services/detail/3RQ4050-1SM50?tree=CatalogTree"},"ai":{"faq":[{"question":"What are the key ratings for the 3RQ4050-1SM50?","answer":"24 V DC coil voltage, 1 normally-open contact, 3 A thermal current (Ith), screw terminal connection, 6.2 mm housing width."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RQ4050-1SM50","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/3RQ4050-1SM50 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}}