{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"K8AB-TH12S AC/DC24","brand":"Omron","brandSlug":"omron","productSlug":"K8AB-TH12S-AC-DC24","canonicalUrl":"https://aoctrl.com/omron/K8AB-TH12S-AC-DC24","factsUrl":"https://aoctrl.com/api/mcp/products/K8AB-TH12S%20AC%2FDC24","rawCanonicalId":null},"summary":{"shortDescription":"Omron K8AB-TH12S AC/DC24, Temperature Monitoring Relay, Series K8AB-TH, SPDT (1 Form C), Trip Range 0°C ~ 1700°C, 3A @ 250VAC, 24VAC/DC Supply, DIN Rail Mount, Box Package.","salesMarkdown":"## What the K8AB-TH12S Monitors — and Where It Fits The K8AB-TH12S AC/DC24: This is a dedicated temperature monitoring relay, not a PID controller — it trips the SPDT output when the sensed temperature exceeds or falls below the setpoint, making it suitable for over-temperature alarm or under-temperature lockout in a control panel. The trip range spans 0°C to 1700°C, which covers the full output of common thermocouple types (K, N, E, J, T up to ~1200°C, and R, S, B up to 1700°C) as well as Pt100 RTDs at the low end — the actual sensor type and setpoint are configured on the unit. Mounts on standard 35 mm DIN rail (EN 60715) and requires a 24 VAC/DC control supply — a common rail voltage in industrial panels, so no separate power supply module is needed if 24 V is already available. ## Output, Supply, and Environmental Limits The SPDT relay contact is rated 3 A at 250 VAC — adequate for driving a pilot lamp, alarm horn, or the coil of a larger contactor for a shutdown circuit, but not for direct motor switching. Operating temperature range is -10°C to 55°C; if the relay is mounted inside an unventilated enclosure near heat-generating equipment (drives, transformers), verify the internal ambient stays below 55°C or the unit may drift out of specification. No built-in delay — the output responds immediately when the temperature crosses the setpoint threshold. If time-delayed alarm action is required, an external timer relay must be added in series. ## Lifecycle Status — Obsolete, Sourced on Request Available through independent surplus and broker channels. Quantities are lot-specific; availability and current pricing are confirmed at RFQ against your BOM line. For new designs or if a supported alternative is required, the closest functional match within the K8AB-TH family would be a current-production model — confirm the trip range, supply voltage, and output configuration against your application before specifying.","metaTitle":"Omron K8AB-TH12S AC/DC24 Temperature Monitor, 0-1700°C, SPDT","metaDescription":"Omron K8AB-TH12S AC/DC24 temperature monitoring relay. Obsolete — sourced to order. Trip range 0-1700°C, SPDT 3A @ 250VAC, 24VAC/DC supply, DIN rail.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Obsolete","categoryPath":["Process / Temperature Controllers"],"specifications":{"Type":"Temperature Monitoring","Series":"K8AB-TH","Circuit":"SPDT (1 Form C)","Package":"Box","Delay Time":"No Delay","Trip Range":"0°C ~ 1700°C","Mounting Type":"DIN Rail","lifecycle_stage":"current","Voltage - Supply":"24VAC/DC","Operating Temperature":"-10°C ~ 55°C","Contact Rating @ Voltage":"3A @ 250VAC"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":null,"alternativesUrl":"https://aoctrl.com/api/mcp/products/K8AB-TH12S%20AC%2FDC24/alternatives.json"},"ai":{"faq":[{"question":"What is the trip range and output of the K8AB-TH12S AC/DC24?","answer":"The trip range is 0°C to 1700°C, covering most thermocouple types. The output is a single SPDT relay rated 3 A at 250 VAC, with no built-in delay."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/omron/K8AB-TH12S-AC-DC24","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/K8AB-TH12S-AC-DC24 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}}