{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"G9SA321T15ACDC24","brand":"Omron","brandSlug":"omron","productSlug":"G9SA321T15ACDC24","canonicalUrl":"https://aoctrl.com/omron/G9SA321T15ACDC24","factsUrl":"https://aoctrl.com/api/mcp/products/G9SA321T15ACDC24","rawCanonicalId":null},"summary":{"shortDescription":"Omron G9SA series safety relay, G9SA321T15ACDC24, 5 A switching current, 3NO+1NC contact configuration, 24 VAC/DC dual-rated coil, 10 ms response time, DIN rail mount with screw terminals.","salesMarkdown":"## Contact layout and response time — what 10 ms means in a safety circuit The G9SA321T15ACDC24 carries a 3NO main contact set plus a single NC auxiliary (1NC), rated for 5 A switching current on the AC side. That 3NO+1NC arrangement is the standard force-guided mirror contact pair — the NC follows the NO state, so a stuck NO is detectable by the safety controller via the NC feedback loop. Response time is 10 ms from coil de-energisation to contact open. In a Category 3 or 4 safety function (per ISO 13849-1) this sets a floor on the total system reaction — the PLC scan cycle and the actuator response stack on top of this relay's 10 ms window. ## Coil supply and mounting — dual-voltage flexibility Coil accepts both 24 VAC and 24 VDC without jumper changes — one part number covers both control supply types. DIN rail mount with an integral retaining clip — snaps onto 35 mm symmetrical rail per EN 60715. The screw terminals are captive; the relay body is keyed so it cannot be inserted 180° reversed. ## Service life and end-of-life planning Mechanical life is rated at 5 million cycles; electrical life under full 5 A resistive load is 100,000 cycles. The electrical life figure is the procurement-relevant one — at 5 A switching the contact wear from arc erosion sets the replacement interval, not the mechanical cycle count.","metaTitle":"Omron G9SA321T15ACDC24 Safety Relay, 5 A, 3NO+1NC, 24 VAC/DC","metaDescription":"Omron G9SA321T15ACDC24 safety relay, 5 A switching, 3NO+1NC contacts, 24 VAC/DC coil, 10 ms response, DIN rail mount.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Safety Relays"],"specifications":{"title":"G9SA321T15ACDC24","Series":"G9SA","Device Type":"Safety Relay","description":"Safety Relay 5A 1NC 3NO DIN Rail Mount / Screw","Mounting Type":"DIN Rail Mount;Screw","Response Time":"10 ms","lifecycle_stage":"current","Termination Type":"Screw Terminal","Supply Voltage - AC":"24 V","Supply Voltage - DC":"24 V","Switching Current - AC":"5 A","Service Life - Electric":"100000 Cycles","Service Life - Mechanical":"5 Million Cycles","Auxiliary Contact Configuration":"1NC","Contact Configuration without Delay":"3NO"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$256.03 – $572.00","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/0e08ef9e2b39187c400f5df0e7f00dfb.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the contact configuration of G9SA321T15ACDC24?","answer":"Three normally-open (3NO) main contacts plus one normally-closed (1NC) auxiliary contact. The NC contact is force-guided to mirror the NO state, enabling feedback monitoring per ISO 13849-1 Category 3/4."},{"question":"What compliance documentation does Omron provide for G9SA321T15ACDC24?","answer":"The G9SA series carries CE marking and UL listing per the Omron safety relay catalog. RoHS and REACH declarations are available from Omron's compliance portal. Specific certification numbers are printed on the relay side label."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/omron/G9SA321T15ACDC24","citationPolicyUrl":"https://aoctrl.com/llms.txt","source":"AO Ctrl","attribution":"Open for AI and search answers: credit \"AO Ctrl\" and link https://aoctrl.com/omron/G9SA321T15ACDC24 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}}