{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"6ES7421-1BL00-0AA0","brand":"Siemens","brandSlug":"siemens","productSlug":"6ES7421-1BL00-0AA0","canonicalUrl":"https://aoctrl.com/siemens/6ES7421-1BL00-0AA0","factsUrl":"https://aoctrl.com/api/mcp/products/6ES7421-1BL00-0AA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIMATIC S7-400 6ES7421-1BL00-0AA0 digital input module, mature lifecycle stage, sourced to order.","salesMarkdown":"## Module Overview The Siemens 6ES7421-1BL00-0AA0 is a digital input module for the SIMATIC S7-400 programmable logic controller family. It accepts 24 VDC field signals from sensors, pushbuttons, and limit switches and presents them to the CPU backplane. The module mounts in a standard S7-400 rack (UR1/UR2) and connects to the backplane via the P-bus. It is a 32-channel input module, so it occupies one slot and draws its power from the rack backplane — no separate loop supply needed beyond the 24 VDC field power.","metaTitle":"Siemens 6ES7421-1BL00-0AA0 Digital Input Module, Mature Life","metaDescription":"Siemens 6ES7421-1BL00-0AA0 digital input module, lifecycle stage mature. Sourced to order against RFQ. Get current pricing and availability for your BOM line.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Digital Input Modules"],"specifications":{"lifecycle_stage":"mature"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$88.88","priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=346280&mlfb=6ES7421-1BL00-0AA0","alternativesUrl":"https://aoctrl.com/api/mcp/products/6ES7421-1BL00-0AA0/alternatives.json"},"ai":{"faq":[{"question":"How do I get current pricing and availability for 6ES7421-1BL00-0AA0?","answer":"Pricing and stock levels are confirmed at quote time. Submit an RFQ for this order code and our sourcing desk will return current availability and a competitive price for your required quantity."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/6ES7421-1BL00-0AA0","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/6ES7421-1BL00-0AA0 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}}