{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RH1921-1XA20-0PA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3RH1921-1XA20-0PA0","canonicalUrl":"https://aoctrl.com/siemens/3RH1921-1XA20-0PA0","factsUrl":"https://aoctrl.com/api/mcp/products/3RH1921-1XA20-0PA0","rawCanonicalId":null},"summary":{"shortDescription":"SIEMENS, auxiliary contact block, 3RH1921-1XA20-0PA0, 2 NO, current lifecycle.","salesMarkdown":"The SIEMENS 3RH1921-1XA20-0PA0 is an auxiliary contact block with 2 normally open contacts, designed for snap-on mounting to the SIRIUS 3RH2 contactor series. It expands the control circuit switching capacity without adding a separate contactor. Snaps directly onto the front or side of the 3RH2 contactor body, occupying a single DIN-rail module width. The 2 NO contacts are electrically isolated from the coil circuit, allowing separate wiring for feedback or interlock signals.","metaTitle":"SIEMENS 3RH1921-1XA20-0PA0 Auxiliary Contact, 2 NO, Current","metaDescription":"SIEMENS 3RH1921-1XA20-0PA0 auxiliary contact block, 2 NO, for contactor series. Current lifecycle stage. Sourced to order against RFQ. Confirm fit for your BOM line.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Contactors"],"specifications":{"Part #":"3RH1921-1XA20-0PA0","Weight":"0.00 kgs","Category":"Contactors and Starters","Sub Category":"Auxiliary Contacts","Top Category":"Circuit Breakers, Fuses & Protection","lifecycle_stage":"current"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$32.46","priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":null,"alternativesUrl":"https://aoctrl.com/api/mcp/products/3RH1921-1XA20-0PA0/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 3RH1921-1XA20-0PA0?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time."},{"question":"What is the closest alternative to 3RH1921-1XA20-0PA0?","answer":"Within the same SIRIUS 3RH2 family, other auxiliary contact blocks with different contact configurations (e.g., 1 NO + 1 NC) exist, but no pin-compatible direct replacement with identical 2 NO arrangement is listed as an official substitute."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RH1921-1XA20-0PA0","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/3RH1921-1XA20-0PA0 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-09-02T08:15:54.622Z","lastPublished":"2026-09-02T08:15:54.622Z","indexable":true}}