{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"D4SL-N4EFA-D4","brand":"Omron","brandSlug":"omron","productSlug":"D4SL-N4EFA-D4","canonicalUrl":"https://aoctrl.com/omron/D4SL-N4EFA-D4","factsUrl":"https://aoctrl.com/api/mcp/products/D4SL-N4EFA-D4","rawCanonicalId":null},"summary":{"shortDescription":"Omron D4SL-N4EFA-D4 Guard Lock Safety-door Switch, mechanical lock / 24VDC solenoid release, built-in switch 2NC/1NO + 1NC/1NO, M20 conduit outlet, resin head, terminal block connection.","salesMarkdown":"The Omron D4SL-N4EFA-D4 is a guard lock safety-door switch — a solenoid-locked interlock that prevents access to a guarded area until safe conditions are met. The mechanical lock holds the door closed; the 24 VDC solenoid releases it when the safety circuit permits. The built-in switch configuration is 2NC/1NO + 1NC/1NO, giving two independent normally-closed safety channels plus a normally-open auxiliary for status feedback. The 24 VDC solenoid release (indicated by the orange LED on the switch body) means this unit is wired into a 24 VDC safety circuit — standard for most PLC-based safety systems. The M20 conduit outlet accepts standard metric cable glands, so panel integration is straightforward with no adapter needed. The resin head is suited for environments where corrosion resistance matters more than impact strength; if the application sees repeated mechanical abuse, a metal-head variant would be the alternative.","metaTitle":"Omron D4SL-N4EFA-D4 Guard Lock Safety-door Switch, 24VDC, M2","metaDescription":"Omron D4SL-N4EFA-D4 guard lock safety-door switch with mechanical lock and 24VDC solenoid release. Built-in switch: 2NC/1NO + 1NC/1NO. M20 conduit outlet. Mature lifecycle, sourced","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Limit Switches"],"specifications":{"title":"D4SL-N4EFA-D4","Indicator":"D = 24VDC (orange LED indicator)","Product No.":"D4SL-N4EFA-D4","description":"Guard Lock Safety-door Switch","Product Type":"Guard Lock Safety-door Switch","Head Material":"F = Resin","Conduit Outlet":"4 = M20","Built-in Switch":"E = 2NC/1NO + 1NC/1NO","Shipping Weight":"1.5 Kg","lifecycle_stage":"mature","Release Key Type":"4 = Special release key (resin) (Note:Release keys are provided.)","Connection Method":"− = Terminal block","Estimated Lead Time":"Usually ships in 1-10 working days.","Door Lock and Release":"A = Mechanical lock/24VDC solenoid release"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$173.00","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/ee6db9fcbe980d3933c97068e27e7866.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the built-in switch configuration?","answer":"The built-in switch is 2NC/1NO + 1NC/1NO — two independent normally-closed contacts for the safety channel and one normally-open contact for auxiliary status feedback."},{"question":"What is the solenoid release voltage?","answer":"The solenoid release operates on 24 VDC, confirmed by the orange LED indicator on the switch body."},{"question":"What conduit outlet does this switch use?","answer":"The conduit outlet is M20, accepting standard metric cable glands."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/omron/D4SL-N4EFA-D4","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/D4SL-N4EFA-D4 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}}