{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"K8AB-VS1 100/115VAC","brand":"Omron","brandSlug":"omron","productSlug":"K8AB-VS1-100-115VAC","canonicalUrl":"https://aoctrl.com/omron/K8AB-VS1-100-115VAC","factsUrl":"https://aoctrl.com/api/mcp/products/K8AB-VS1%20100%2F115VAC","rawCanonicalId":null},"summary":{"shortDescription":"Omron K8AB-VS1 100/115VAC, Series K8AB-VS, Voltage Sensing AC/DC relay, SPDT (1 Form C), 6~300mV AC/DC trip range, 0.1~30 Sec delay, 100~115VAC supply, DIN rail mount.","salesMarkdown":"## What this voltage relay does that a standard phase monitor cannot The K8AB-VS1 100/115VAC is a dedicated voltage sensing relay from Omron's K8AB-VS series, designed to monitor AC or DC voltage levels down to the millivolt range — 6 to 300 mV AC/DC trip threshold. That sub-volt sensitivity is what sets it apart from a standard phase-loss or overvoltage relay that typically starts at 1 V or higher. It operates on a 100 to 115 VAC control supply and switches a single SPDT (1 Form C) relay output rated 6 A at 250 VAC. The adjustable delay from 0.1 to 30 seconds lets you time-grade the response so momentary dips don't trigger nuisance trips on the line. ## Sourcing reality — obsolete, not gone Omron lists the K8AB-VS1 100/115VAC as obsolete. The part is still available through independent surplus and broker channels — quantities are lot-specific and confirmed at RFQ, not held in stock. For a line-down situation or a BOM that needs this exact order code, the sourcing path is a quoted-to-order RFQ through distribution that can locate the remaining inventory. No pin-compatible alternative from the K8AB-VS family has been designated as a formal successor. ## DIN rail integration and panel fit The relay mounts on standard DIN rail, so it slots into an existing control panel alongside other K8AB-series monitors or general-purpose relays. The box-style package occupies a single module width — no special cutout or panel drilling needed. Rated for -20°C to 60°C operating ambient, it handles the thermal environment inside a closed electrical enclosure without forced cooling, provided the panel design keeps internal rise within that window.","metaTitle":"Omron K8AB-VS1 100/115VAC Voltage Sensing Relay","metaDescription":"Omron K8AB-VS1 100/115VAC voltage sensing relay, SPDT output, 6-300mV AC/DC trip range, 0.1-30s delay.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Obsolete","categoryPath":["Process / Temperature Controllers"],"specifications":{"Type":"Voltage Sensing AC/DC","Series":"K8AB-VS","Circuit":"SPDT (1 Form C)","Package":"Box","Delay Time":"0.1 Sec ~ 30 Sec","Trip Range":"6 ~ 300mV AC/DC","Output Type":"Relay","Mounting Type":"DIN Rail","lifecycle_stage":"current","Voltage - Supply":"100 ~ 115VAC","Operating Temperature":"-20°C~60°C","Contact Rating @ Voltage":"6A @ 250VAC"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":null,"alternativesUrl":"https://aoctrl.com/api/mcp/products/K8AB-VS1%20100%2F115VAC/alternatives.json"},"ai":{"faq":[{"question":"What voltage range does the K8AB-VS1 100/115VAC monitor?","answer":"It senses AC or DC voltage from 6 mV up to 300 mV, with an adjustable trip point within that range. The control supply voltage is 100 to 115 VAC, separate from the monitored signal."},{"question":"What is the output configuration and contact rating?","answer":"A single SPDT (1 Form C) relay rated 6 A at 250 VAC. The adjustable delay of 0.1 to 30 seconds allows the output to ignore brief transients before tripping."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/omron/K8AB-VS1-100-115VAC","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-VS1-100-115VAC 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}}