{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"6ES7222-1HF21-0XA0","brand":"Siemens","brandSlug":"siemens","productSlug":"6ES7222-1HF21-0XA0","canonicalUrl":"https://aoctrl.com/siemens/6ES7222-1HF21-0XA0","factsUrl":"https://aoctrl.com/api/mcp/products/6ES7222-1HF21-0XA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens 6ES7222-1HF21-0XA0. Full specifications and sourcing options are below.","salesMarkdown":"## Overview The 6ES7222-1HF21-0XA0 is a Siemens SIMATIC S7-200 EM 222 digital output module providing 8 relay outputs rated at 2 A per channel. It is designed exclusively for use with S7-22X CPUs and mounts directly on the CPU expansion bus. This module adds eight relay outputs to an S7-200 base CPU. Each output switches up to 2 A, suitable for driving contactors, solenoids, and indicator loads. The relay contacts provide galvanic isolation between the load circuit and the PLC backplane, which is useful when mixing AC and DC loads in the same panel. ## Applications The EM 222 relay output module is used in small to medium machine automation, packaging lines, conveyor systems, and HVAC control panels where the S7-200 CPU serves as the controller. Its relay outputs handle both AC and DC loads up to 2 A, making it a flexible choice for mixed-voltage cabinets.","metaTitle":"Siemens 6ES7222-1HF21-0XA0 EM 222 8DO Relay 2A","metaDescription":"Siemens SIMATIC S7-200 EM 222 (6ES7222-1HF21-0XA0) digital output module: 8 relay outputs, 2 A per channel, for S7-22X CPU only.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Digital Output Modules"],"specifications":{"Type":"Digital Output Module","Model":"6ES7 222-1HF21-0XA0","Range":"SIMATICS7200","Relay":"EM 222","Weight":"0,14 kg","Used for":"S722XCPU","Condition":"Used","Shelf No.":"240524 , 240824","Dimensions":"100 x 50 x 60 mm","Manufacturer":"Siemens","Type of Product":"Digital Output Module","lifecycle_stage":"current","Relay Output Current":"2 A","No. of Digital Outputs (DO)":"8"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$44.44 – $105.61","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/4244e6711ca4776ca4f58c20846e85d2.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=335491&mlfb=6ES7222-1HF21-0XA0"},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/6ES7222-1HF21-0XA0","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/6ES7222-1HF21-0XA0 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}}