{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RQ4901-0D","brand":"Siemens","brandSlug":"siemens","productSlug":"3RQ4901-0D","canonicalUrl":"https://aoctrl.com/siemens/3RQ4901-0D","factsUrl":"https://aoctrl.com/api/mcp/products/3RQ4901-0D","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS 3RQ4 coupling relays, narrow design, connecting comb 3RQ4901-0D, 16-pole, infeed max 10 A.","salesMarkdown":"The 3RQ4901-0D is a 16-pole connecting comb from the SIRIUS 3RQ4 family of narrow coupling relays. It bridges identical potentials across the relay terminals, with a current-carrying capacity for infeed of max 10 A. This is a current-production part — lifecycle status is active. ## What the 10 A infeed rating means for fit The 10 A infeed rating governs the total current the comb can carry into the commoned potential rail. It does not limit per-channel current through the relay contacts — that is set by the relay's own rating. For a multi-channel coupling relay bank, the sum of loads on the commoned side must stay under 10 A, or a separate infeed point is needed. This is the number that decides whether the comb works for your load group. ## Where this part fits in the panel The comb snaps onto the SIRIUS 3RQ4 coupling relay block, linking the terminal rows without point-to-point wiring. It is a narrow-format accessory designed for DIN-rail enclosures where space per channel is tight. Group code R711 and product group 4950 are the internal Siemens classification — useful for cross-referencing against a BOM or a stores bin. RoHS compliant since 26-09-24. REACH Article 33 information is available on request.","metaTitle":"Siemens 3RQ4901-0D SIRIUS connecting comb, 16-pole, 10 A inf","metaDescription":"Siemens 3RQ4901-0D SIRIUS 3RQ4 connecting comb, 16-pole, infeed max 10 A. Active production. RoHS compliant. Order to RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Motor Control Accessories"],"specifications":{"title":"3RQ4901-0D","Group Code":"R711","description":"connecting comb for connecting identical potentials, current-carrying capacity for infeed max. 10 A, 16-pole","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 : N","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/817f4494a8afc727817165a2a87988bf.pdf","sourceUrl":"https://sieportal.siemens.com/en-ae/products-services/detail/3RQ4901-0D?tree=CatalogTree"},"ai":{"faq":[{"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 BOM cross-reference."},{"question":"What compliance documentation is available?","answer":"RoHS compliant since 26-09-24. REACH Article 33 information is published. Export control classification is AL: N / ECCN: N, meaning no special export license is required for standard industrial use."},{"question":"What is the closest alternative to this connecting comb in the same family?","answer":"Within the SIRIUS 3RQ4 family, other pole-count combs exist (e.g., 8-pole, 20-pole) but they differ in terminal count and infeed rating. The 16-pole 10 A version is the one specified for the 3RQ4 narrow relay block when 16 commoned channels are needed. No direct pin-compatible substitute outside the 3RQ4 family is listed."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RQ4901-0D","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/3RQ4901-0D 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}}