{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RH1921-2TA11-Z X92","brand":"Siemens","brandSlug":"siemens","productSlug":"3RH1921-2TA11-Z-X92","canonicalUrl":"https://aoctrl.com/siemens/3RH1921-2TA11-Z-X92","factsUrl":"https://aoctrl.com/api/mcp/products/3RH1921-2TA11-Z%20X92","rawCanonicalId":null},"summary":{"shortDescription":"Siemens auxiliary switch block, 1 NO + 1 NC, EN 50005, lateral spring-loaded connection, for motor contactors, 4-pole multi-unit packaging = 46 units.","salesMarkdown":"The 3RH1921-2TA11-Z X92 is an auxiliary switch block that adds one normally-open and one normally-closed contact to a motor contactor. It mounts per EN 50005, which means it clips onto the contactor's front or side without extra hardware — a standard interface across the SIRIUS family. RoHS compliant since July 2006, with REACH candidate-list information available on request. Packaged in multi-unit quantities of 46 pieces per carton, individual unit dimensions are 73 x 70 x 15 mm — small enough to keep a handful on the shelf for line-down spares without eating up bin space. ## Integration notes Mounts onto SIRIUS contactors per EN 50005. The block sits flush against the contactor body, adding no width beyond the contactor envelope. Spring-loaded terminals are rated for the contactor's auxiliary circuit; no separate fuse needed for the signal side. Wire the NO and NC as dry contacts — the block doesn't draw coil current, it just mirrors the contactor's armature position.","metaTitle":"3RH1921-2TA11-Z X92 Auxiliary Switch Block, 1 NO + 1 NC, Act","metaDescription":"Active 3RH1921-2TA11-Z X92 auxiliary switch block with 1 NO + 1 NC contacts, EN 50005 mounting, lateral spring-loaded terminals for motor contactors. RoHS compliant since 2006.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Contactors"],"specifications":{"title":"3RH1921-2TA11-Z X92","Group Code":"R711","description":"auxiliary switch block, 1 NO + 1 NC, EN 50005, lateral spring-loaded connection technology, for motor contactors, 4-pole multi-unit packaging = 46 units","Product Group":"3729","Product class":"A: Standard product which is a stock item could be returned within the returns guidelines/period.","Quantity Unit":"1 Piece","Product Family":"Ordering Data Overview","lifecycle_stage":"current","Packaging Quantity":"1","Export Control Regulations":"AL : N / ECCN : N","Packaging dimensions (L x W x H)":"73.00 x 70.00 x 15.00 mm","Compliance with the substance restrictions according to RoHS directive":"Since: 01-07-06","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/991651246e99634f6db13dee8537faad.pdf","sourceUrl":"https://sieportal.siemens.com/en-ae/products-services/detail/3RH1921-2TA11-ZX92?tree=CatalogTree"},"ai":{"faq":[{"question":"What is the group code and product group for this item?","answer":"Group code R711, product group 3729. These are internal Siemens classification codes used for catalog sorting and cross-reference lookups."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RH1921-2TA11-Z-X92","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/3RH1921-2TA11-Z-X92 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-22T19:47:38.189Z","lastPublished":"2026-07-22T19:47:38.189Z","indexable":true}}