{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"MY4H-US-AC110/120","brand":"Omron","brandSlug":"omron","productSlug":"MY4H-US-AC110-120","canonicalUrl":"https://aoctrl.com/omron/MY4H-US-AC110-120","factsUrl":"https://aoctrl.com/api/mcp/products/MY4H-US-AC110%2F120","rawCanonicalId":null},"summary":{"shortDescription":"Omron MY Series MY4H-US-AC110/120 hermetically sealed general purpose relay, 4PDT contact form, 3 A contact rating, 120V AC coil, socket mount, 14 pins.","salesMarkdown":"## Where it sits in the panel The Omron MY4H-US-AC110/120 is an enclosed MY Series relay with a 4PDT contact set and a 120V AC coil, built for socket-mount installation in control panels where four independent circuits need to switch from a single logic-level trigger. The 14-pin footprint lands on the standard Omron PYF-style socket, so panel wiring is a clip-in rather than a hard-mount job. ## Contact ratings and what they actually switch Contacts are rated 3 A at 120V AC and 3 A at 24V DC, so the relay comfortably handles pilot-duty loads and small motor or solenoid coils but is not the part for a branch-circuit feeder. The motor-rated rating adds 1/6 hp capability at both 120V AC and 240V AC — enough for small fractional-horsepower loads like damper actuators, small fans, or pump contactors, not for driving a three-phase motor directly. The tab-style electrical connection pairs with a standard 14-pin socket, so field replacement is a pull-and-replace rather than a rewire. There is no mechanical status indicator and no push-to-test button on this variant, so the only way to confirm state at the panel is to meter the coil or the load side — worth noting before a commissioning walk-down. ## Sealing and deployment context The hermetically sealed enclosure on this variant is the differentiator — dust and contaminants stay out of the contact chamber, so the relay is a sensible pick for paper-mill control cabinets, food-processing washdown areas, or any panel that breathes dusty or humid plant air. The trade-off is sealed construction: if the coil fails, the relay is replace-only, not field-serviceable. Lifecycle stage is recorded as mature — a long-standing catalogue part rather than a recent release, which means cross-references and socket compatibility are well established across the installed base. No official successor is recorded against this order code, so replacement strategy is another MY4H sealed unit rather than a redesigned next-generation relay.","metaTitle":"Omron MY4H-US-AC110/120 4PDT Relay, 3 A, 120V AC","metaDescription":"Omron MY4H-US-AC110/120 MY Series hermetically sealed relay, 4PDT, 3 A contacts, 120V AC coil, socket mount. Quoted to order; availability confirmed at RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["General Purpose Relays"],"specifications":{"title":"MY4H-US-AC110/120","Series":"MY Series","Sealing":"Enclosed","Motor Rated":"Yes","Socket Code":"G","description":"OMRON Hermetically Sealed Relay: Socket Mounted, 3 A Current Rating, 120V AC, 14 Pins/Terminals","Coil Voltage":"120V AC","Contact Form":"4PDT","Current Rating":"3 A","lifecycle_stage":"mature","Status Indicator":"No Indicator","Contact Rating (AC)":"3 A @ 120V","Contact Rating (DC)":"3 A @ 24V","Push-To-Test Button":"No Test Button","Horsepower @ 120V AC":"1/6 hp","Horsepower @ 240V AC":"1/6 hp","Relay Mounting Style":"Socket","Number of Pins/Terminals":"14","Electrical Connection Type":"Tab","Coil Voltage (Nominal@60Hz)":"120V AC"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$88.85 – $98.46","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/26a619e77402e8317b7590a8dd6f5233.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Where can I buy MY4H-US-AC110/120 and how do I get a price?","answer":"Send the quantity and the panel build date code requirement with the RFQ; current pricing and availability come back with the quote."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/omron/MY4H-US-AC110-120","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/MY4H-US-AC110-120 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}}