{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"D4SL-N3PDA-D","brand":"Omron","brandSlug":"omron","productSlug":"D4SL-N3PDA-D","canonicalUrl":"https://aoctrl.com/omron/D4SL-N3PDA-D","factsUrl":"https://aoctrl.com/api/mcp/products/D4SL-N3PDA-D","rawCanonicalId":null},"summary":{"shortDescription":"Omron D4SL-N series guard locking switch, D4SL-N3PDA-D, metal head, 1300 N holding force, 2 NC/1 NO + 3 NC contacts, 24 VDC solenoid, terminal block, 1/2-14NPT conduit with M20 adapter.","salesMarkdown":"## Guard locking switch for machine safety circuits The Omron D4SL-N3PDA-D is a guard locking switch with a mechanical lock and solenoid release, designed to implement safe monitoring functions on access guards and safety gates. Its 1300 N key holding force means it physically resists forced opening of the guard door up to that pull-off load — a spec that matters when you're securing a heavy interlock on a press or robot cell where an operator might lean against the door. The solenoid operates on 24 VDC; the orange indicator lights at the same voltage, giving a clear visual that the solenoid is energized and the lock is engaged. ## Contact configuration and wiring Six contacts total, arranged as 2 NC / 1 NO + 3 NC. That's two normally-closed safety channels for the guard position, plus a three-contact NC block and one NO auxiliary. The NC contacts are the ones you wire into the safety relay or safety PLC input circuit — they drop out when the guard opens. The NO contact can signal a PLC that the door is locked, or drive a status lamp. Connection is via terminal block, so no special tooling needed at the panel. Conduit entry is 1/2-14NPT; the box includes an M20-to-1/2-14NPT conversion adapter, which saves a step if your local code calls for metric fittings.","metaTitle":"Omron D4SL-N3PDA-D Guard Locking Switch, 1300 N Holding Forc","metaDescription":"Omron D4SL-N3PDA-D guard locking switch. 1300 N holding force, 2 NC/1 NO + 3 NC contacts, 24 VDC solenoid, metal head, 1/2-14NPT conduit. Mature lifecycle. Quoted to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Limit Switches"],"specifications":{"title":"D4SL-N3PDA-D","Indicator":"Orange, 24 VDC","description":"D4SL-N Guard Locking Switch|Implement safe monitoring function with a wide range of models, holding force up to 1300N and different contact options","Conduit size":"1/2-14NPT, includes M20-to-1/2-14NPT conversion adapter","Head material":"Metal","lifecycle_stage":"mature","Release Key type":"Standard release key (metal)","Solenoid voltage":"24 VDC","Connection method":"Terminal Block","Key holding force":"1300 N","Number of contacts":"6","Contact Configuration":"2 NC / 1 NO + 3 NC","Door lock and release":"Mechanical lock/solenoid release"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/794e5f6e9775e095eba06ca72023f46a.pdf","sourceUrl":"https://automation.omron.com/en/us/products/family/D4SL-N"},"ai":{"faq":[{"question":"What is the holding force of D4SL-N3PDA-D?","answer":"The key holding force is 1300 N. That's the force required to pull the release key out of the switch when the solenoid is energized and the lock is engaged — enough to secure heavy industrial guards against accidental opening."},{"question":"What is the contact configuration on D4SL-N3PDA-D?","answer":"It has 6 contacts total: 2 NC / 1 NO + 3 NC. The first two NC contacts are typically used for the safety circuit; the additional 3 NC and 1 NO provide auxiliary signaling or status feedback."},{"question":"What conduit size does D4SL-N3PDA-D accept?","answer":"The conduit entry is 1/2-14NPT. The switch also includes an M20-to-1/2-14NPT conversion adapter, so it works with both NPT and metric conduit fittings right out of the box."},{"question":"Where can I buy D4SL-N3PDA-D and get current pricing?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution. Submit a request for quote; availability and current pricing are confirmed at quote time."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/omron/D4SL-N3PDA-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-N3PDA-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}}