{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"6ES7322-1HF01-0AA0","brand":"Siemens","brandSlug":"siemens","productSlug":"6ES7322-1HF01-0AA0","canonicalUrl":"https://aoctrl.com/siemens/6ES7322-1HF01-0AA0","factsUrl":"https://aoctrl.com/api/mcp/products/6ES7322-1HF01-0AA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIMATIC S7-300 SM 322, 8 relay outputs, 24 V DC, 2 A, 40 mm width, end-of-life.","salesMarkdown":"## 8 relay outputs for legacy S7-300 racks The 6ES7322-1HF01-0AA0 is an 8-channel relay output module for the SIMATIC S7-300 family, rated 24 V DC coil supply and 2 A per channel on resistive load. Each relay switches up to 2 A on inductive loads at 230 V AC or 24 V DC, making it suitable for driving contactors, solenoid valves, and small motor starters in existing S7-300 installations. ## Contact ratings and mechanical endurance Each relay is rated for 300 000 mechanical cycles at 24 V DC / 2 A, 200 000 cycles at 120 V AC, and 100 000 cycles at 230 V AC. The minimum load current for a reliable '1' signal is 5 mA — below that, the relay may not wet the contacts. Thermal continuous current per channel is 3 A, so the 2 A rated load stays within the continuous derating envelope. Width is 40 mm, depth 120 mm, height 125 mm — occupies one S7-300 slot. Requires a 20-pin front connector (ordered separately). Isolation between channels and the backplane bus is via optocoupler, tested at 1 500 V AC. No diagnostic alarms, no wire-break or short-circuit detection — this is a basic relay module, so fault finding relies on the downstream device's own feedback.","metaTitle":"Siemens 6ES7322-1HF01-0AA0 Digital Output Module, 8 Relay","metaDescription":"Siemens 6ES7322-1HF01-0AA0 SIMATIC S7-300 digital output module, 8 relay outputs, 24 V DC, 2 A per channel.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Digital Output Modules"],"specifications":{"Depth":"120 mm","Width":"40 mm","Alarms":"No","Height":"125 mm","Fuse blown":"No","Wire-break":"No","For Uprating":"No","Short-circuit":"No","Shielded, Max.":"1 000 m","Weight, approx.":"190 g","lifecycle_stage":"eol_hot","Diagnostic alarm":"No","Mechanical, Max.":"10 Hz","Power loss, typ.":"3.2 W","Rated value (DC)":"24 V","Unshielded, Max.":"600 m","On Lamp Load, Max.":"2 Hz","Fuse OK FSG (green)":"No","Between The Channels":"Yes","Diagnostics function":"No","Missing Load Voltage":"No","Isolation tested with":"1 500 V AC","Required Front Connector":"20-pin","Short-circuit protection":"No","Number of digital outputs":"8; Relays","With Inductive Load, Max.":"2 A; 2 A (230 V AC), 2 A (24 V DC)","With Resistive Load, Max.":"2 A","For Signal \"1\" Rated Value":"2 A","Controlling a digital input":"Yes","from supply voltage L+, max.":"160 mA","Contact connection (internal)":"Yes; SIOV-CU4032 K275G","Rated load voltage PWR (green)":"No","For Redundant Control Of A Load":"Yes","from backplane bus 5 V DC, max.":"40 mA","Fluorescent tubes, uncompensated":"10x 58 W","Number of operating cycles, max.":"300 000; 230 V AC: 100 000; 120 V AC: 200 000; 24 V DC: 300 000 (at 2 A)","Thermal continuous current, max.":"3 A","Between The Channels, In Groups Of":"2","For Signal \"1\" Minimum Load Current":"5 mA","Between The Channels And Backplane Bus":"Yes; Optocoupler","Status indicator digital output (green)":"Yes","Rated supply voltage of relay coil L+ (DC)":"24 V; 110 mA","Fluorescent tubes, conventionally compensated":"1x 58 W","Low energy/fluorescent lamps with electronic control gear":"10x 58 W"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$173.99 – $202.00","priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/d2304acea660016350be8a1ea5e17dce.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=470862&mlfb=6ES7322-1HF01-0AA0","alternativesUrl":"https://aoctrl.com/api/mcp/products/6ES7322-1HF01-0AA0/alternatives.json"},"ai":{"faq":[{"question":"What are the specifications of 6ES7322-1HF01-0AA0?","answer":"8 relay outputs, 24 V DC coil supply, 2 A per channel on resistive load. Inductive load rating is 2 A at 230 V AC or 24 V DC. Mechanical life is 300 000 cycles at 24 V DC / 2 A. Module width is 40 mm, requires a 20-pin front connector. No diagnostics."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/6ES7322-1HF01-0AA0","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/6ES7322-1HF01-0AA0 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}}