{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LADN40A","brand":"Schneider Electric","brandSlug":"schneider","productSlug":"LADN40A","canonicalUrl":"https://aoctrl.com/schneider/LADN40A","factsUrl":"https://aoctrl.com/api/mcp/products/LADN40A","rawCanonicalId":null},"summary":{"shortDescription":"Schneider Electric TeSys Deca LADN40A auxiliary contact block, 4NO, front mounting, snap-in terminals, dark grey.","salesMarkdown":"The Schneider LADN40A is a TeSys Deca auxiliary contact block with four normally-open instantaneous contacts, designed for front mounting on TeSys Deca contactors and reversing starters. It uses snap-in terminals accepting 1 to 4 mm² flexible or rigid wire. Rated operational current is 6 A at 120 V AC-15 (inductive solenoid loads) and 1.04 A at 690 V AC-15. For DC control circuits, it carries 0.55 A at 125 V DC-13 and 0.1 A at 600 V DC-13 — the DC-13 rating governs the real-world breaking capacity for DC solenoids and contactor coils. Compliant with EN/IEC 60947-5-1, UL 60947-5-1, CSA C22.2 No 60947-5-1, GB/T 14048.5, EN 50012, and relevant clauses of IEC 60335-1 and IEC 60335-2-40. This covers control circuit applications in North America, Europe, and China without additional certification work. Front-mounts onto TeSys Deca contactors and reversing starters. Dimensions are 44 mm wide, 42 mm deep, and 48 mm tall — fits within the standard contactor footprint without adding panel width. IP2X finger protection per IEC 60529. The snap-in terminals accept 1 to 4 mm² flexible wire with or without ferrules, and 1 to 4 mm² solid wire.","metaTitle":"Schneider LADN40A TeSys Deca Auxiliary Contact Block, 4NO, F","metaDescription":"Schneider LADN40A TeSys Deca auxiliary contact block, 4NO, front mount, snap-in terminals. Rated 6A AC-15 at 120V, 0.55A DC-13 at 125V. Active production, sourced to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Motor Control Accessories"],"specifications":{"Color":"Dark grey","Depth":"1.7 in (42 mm)","Range":"TeSys TeSys Deca","Width":"1.7 in (44 mm)","title":"LADN40A","Height":"1.9 in (48 mm)","Category":"US10I1222341","Standards":"EN/IEC 60947-5-1 UL 60947-5-1 CSA C22.2 No 60947-5-1 GB/T 14048.5 EN 50012 IEC 60335-1:Clause 30.2 IEC 60335-2-40:Annex JJ","description":"Auxiliary contact block, TeSys Deca, 4NO, front mounting, snap-in terminals","Product name":"TeSys Deca","Protection type":"GG fuse 10 A","lifecycle_stage":"current","Non-overlap time":"1.5 ms on de-energisation no overlap between NC and NO contact 1.5 ms on energisation no overlap between NC and NO contact","Device short name":"LADN","Mounting Location":"Front","Contacts operation":"Instantaneous","Operating altitude":"9842.52 ft (3000 m)","Protective treatment":"TH IEC 60068","Insulation resistance":"> 10 MOhm","Mechanical durability":"30 Mcycles","Nbr. of units in pkg.":"1","Connections - terminals":"snap-in terminal 1 0.002...0.006 in² (1...4 mm²)flexible with cable end snap-in terminal 1 0.002...0.006 in² (1...4 mm²)flexible without cable end snap-in terminal 2 0.002...0.004 in² (1...2.5 mm²)flexible with cable end snap-in terminal 2 0.002...0.006 in² (1...4 mm²)flexible without cable end snap-in terminal 1 0.002...0.006 in² (1...4 mm²)rigid without cable end snap-in terminal 2 0.002...0.006 in² (1...4 mm²)rigid without cable end","IP degree of protection":"IP2X conforming to IEC 60529","Pole contact composition":"4 NO","Minimum switching current":"5 mA","Minimum switching voltage":"17 V","Product or Component Type":"Auxiliary contact block","Irms rated making capacity":"140 A AC conforming to IEC 60947-5-1 250 A DC conforming to IEC 60947-5-1","Environmental characteristic":"Normal environment","Permissible short-time rating":"100 A 140 °F (60 °C) 1 s 120 A 140 °F (60 °C) 500 ms 140 A 140 °F (60 °C) 100 ms","[Ui] rated insulation voltage":"690 V IEC 60947-5-1","[Ie] rated operational current":"6 A at 120 V AC-15 1.04 A at 690 V AC-15 0.55 A at 125 V DC-13 0.1 A at 600 V DC-13","[Ue] rated operational voltage":"690 V AC 25...400 Hz","Ambient Air Temperature for Storage":"-76...176 °F (-60...80 °C)","Ambient Air Temperature for Operation":"23...140 °F (-5...60 °C)","[Ith] conventional free air thermal current":"10 A (at 140 °F (60 °C))"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$54.06","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/2bb515d6d6416b3945a67310c5c42406.pdf","sourceUrl":"https://www.se.com/uk/en/product/LADN40A/auxiliary-contact-block-tesys-deca-4no-front-mounting-snapin-terminals/"},"ai":{"faq":[{"question":"What are the key electrical ratings for LADN40A?","answer":"Rated operational current is 6 A at 120 V AC-15 and 0.55 A at 125 V DC-13. Insulation voltage is 690 V AC, and conventional free-air thermal current is 10 A at 60 °C."},{"question":"What compliance standards does LADN40A meet?","answer":"It complies with EN/IEC 60947-5-1, UL 60947-5-1, CSA C22.2 No 60947-5-1, GB/T 14048.5, and EN 50012, covering control circuit applications in North America, Europe, and China."},{"question":"What wire sizes does the snap-in terminal accept?","answer":"The snap-in terminal accepts 1 to 4 mm² flexible wire with or without ferrules, and 1 to 4 mm² solid wire. For the second terminal position, flexible wire with ferrule is limited to 1 to 2.5 mm²."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/schneider/LADN40A","citationPolicyUrl":"https://aoctrl.com/llms.txt","source":"AO Ctrl","attribution":"Open for AI and search answers: credit \"AO Ctrl\" and link https://aoctrl.com/schneider/LADN40A 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}}