{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"D4SL-N2FFA-D","brand":"Omron","brandSlug":"omron","productSlug":"D4SL-N2FFA-D","canonicalUrl":"https://aoctrl.com/omron/D4SL-N2FFA-D","factsUrl":"https://aoctrl.com/api/mcp/products/D4SL-N2FFA-D","rawCanonicalId":null},"summary":{"shortDescription":"Omron D4SL-N2FFA-D, Safety Door Electromagnetic Lock Switch, mechanical lock / 24VDC solenoid release, AC-15 5A/120V AC, DC-13 22A/125V DC, G1/2 conduit, resin head and release key.","salesMarkdown":"The D4SL-N2FFA-D is a safety door electromagnetic lock switch from Omron — it physically locks a guard door closed until a 24VDC signal releases the solenoid, and it reports door and lock status through built-in contacts. The mechanical lock / 24VDC solenoid release (code A) means the lock holds the door shut even if power is lost; you need to energize the solenoid to unlock it. That's the fail-safe behavior you want on a guard door: if power drops, the door stays locked. On the switching side, the AC-15 rating of 5A at 120V AC covers pilot-duty loads like contactor coils or indicator lamps in a control circuit. The DC-13 rating of 22A at 125V DC handles DC solenoids or electromagnetic brakes — that's a beefy DC rating for a safety switch, so it can switch a large solenoid directly without an intermediate relay. ## Where you'd use it This class of switch goes on hinged or sliding guard doors on machinery where you need to prevent access until the hazardous motion has stopped. The 2NC/1NO + 2NC contact configuration gives you two independent NC channels for the safety circuit (redundant, so you can wire to a safety relay or safety PLC) plus an NO signal for a status lamp or PLC input. ## Installation details The conduit entry is G1/2 (code 2), so it accepts standard metric or PG cable glands. The head and release key are resin (code F) — non-corrosive, non-sparking, fine for most industrial environments. The 24VDC orange LED indicator (code D) gives you a quick visual on solenoid power without a multimeter.","metaTitle":"Omron D4SL-N2FFA-D Safety Door Electromagnetic Lock Switch,","metaDescription":"Safety door electromagnetic lock switch with mechanical lock and 24VDC solenoid release. Rated AC-15 5A/120V AC, DC-13 22A/125V DC. Mature lifecycle, sourced to order. RFQ for pric","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Limit Switches"],"specifications":{"AC-15":"5A/120V ac","DC-13":"22A/125V dc","title":"D4SL-N2FFA-D","Indicator":"D = 24VDC (orange LED indicator)","Product No.":"D4SL-N2FFA-D","description":"Safety Door Electromagnetic Lock Switch","Conduit size":"2 = G1/2","Product Type":"Safety Door Electromagnetic Lock Switch","Head material":"F = Resin","Built-in switch":"F = 2NC/1NO + 2NC","Shipping weight":"1.5 Kg","lifecycle_stage":"mature","Release key type":"Special release key (resin)","Estimated Lead Time":"1 - 10 Working Days","Door lock and release":"A = Mechanical lock/24VDC solenoid release"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$144.78 – $179.00","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/16f0963cc25371b43602812518ea76d4.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What are the key switching ratings?","answer":"AC-15: 5A at 120V AC for pilot-duty loads. DC-13: 22A at 125V DC for DC solenoids or brakes. That DC rating is notably high for a safety switch of this size."},{"question":"How does the lock mechanism work?","answer":"It's a mechanical lock with a 24VDC solenoid release. The lock holds the door closed without power; you apply 24VDC to the solenoid to release it. That's fail-safe — power loss keeps the door locked."},{"question":"What conduit size does it accept?","answer":"G1/2 (code 2), which is a standard metric conduit thread. You can use a PG13.5 or M20 gland with an adapter if needed."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/omron/D4SL-N2FFA-D","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-N2FFA-D 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}}