{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"D4NL4HFAB","brand":"Omron","brandSlug":"omron","productSlug":"D4NL4HFAB","canonicalUrl":"https://aoctrl.com/omron/D4NL4HFAB","factsUrl":"https://aoctrl.com/api/mcp/products/D4NL4HFAB","rawCanonicalId":null},"summary":{"shortDescription":"Omron D4NL series, Safety Door Lock Switch, D4NL4HFAB, 3NC / 2NC, IP67, Screw Terminal, Mechanical Lock.","salesMarkdown":"The D4NL4HFAB is a safety door lock switch from Omron's D4NL series, built to guard access on machinery with a mechanical lock and key-actuated switching. It carries three normally-closed and two normally-closed contacts (3NC/2NC) — the extra NC pair gives you a dedicated feedback or status channel separate from the safety chain, which simplifies wiring for monitored guard positions. The IP67 rating means the housing and actuator withstand washdown environments, so it fits food processing or wet-area cell doors where hose-down cleaning is routine. The AC switching current is rated at 3 A at 240 V, and the DC side handles 270 mA at 250 V. For a safety interlock, these numbers govern the load you can break — a solenoid lock or indicator lamp on the DC side stays within the 270 mA limit, while the AC contacts can switch a small contactor coil or pilot light. Dimensions are 88.5 mm wide, 95 mm tall, and 35.5 mm deep — that depth is the body depth behind the panel face, so check clearance behind the door frame or enclosure cutout before committing the BOM line. The screw terminals accept standard ferruled or solid wire; strip length and torque follow the usual Omron safety switch practice.","metaTitle":"Omron D4NL4HFAB Safety Door Lock Switch, 3NC/2NC, IP67","metaDescription":"Safety door lock switch with mechanical lock, key actuator, 3NC/2NC contacts, IP67, screw terminals. Mature lifecycle; sourced to order. Depth 35.5 mm.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Limit Switches"],"specifications":{"Depth":"35.5 mm","Width":"88.5 mm","title":"D4NL4HFAB","Height":"95 mm","Series":"D4NL","Lock Type":"Mechanical","Switch Type":"Safety-Door Switch","description":"Safety Door Lock Switch, 3NC / 2NC, IP67, Screw Terminal","Actuator Type":"Key","lifecycle_stage":"mature","Termination Type":"Screw Terminal","Protection Rating":"IP67","Contact Configuration":"3NC;2NC","Switching Current - AC":"3 A","Switching Current - DC":"270 mA","Switching Voltage - AC":"240 V","Switching Voltage - DC":"250 V","Service Life - Electric":"500000 Cycles","Number of Head Directions":"4","Service Life - Mechanical":"1 Million Cycles"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$392.94","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/8fad8bcd5f903720d1f8c7306b96a1e2.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What are the key dimensions for panel mounting?","answer":"The D4NL4HFAB measures 88.5 mm wide, 95 mm tall, and 35.5 mm deep. The 35.5 mm depth is the body depth behind the mounting surface — verify clearance behind the door or enclosure panel."},{"question":"What contact configuration does this switch have?","answer":"It has three normally-closed and two normally-closed contacts (3NC/2NC). The extra NC pair can be used for a separate feedback signal to the safety controller or for status indication."},{"question":"What is the switching capacity for AC and DC loads?","answer":"AC switching is rated at 3 A at 240 V; DC switching is rated at 270 mA at 250 V. Keep DC loads under that 270 mA limit — solenoid locks or indicator lamps are typical."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/omron/D4NL4HFAB","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/D4NL4HFAB 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}}