{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LADT3R1","brand":"Schneider Electric","brandSlug":"schneider","productSlug":"LADT3R1","canonicalUrl":"https://aoctrl.com/schneider/LADT3R1","factsUrl":"https://aoctrl.com/api/mcp/products/LADT3R1","rawCanonicalId":null},"summary":{"shortDescription":"Schneider Electric TeSys Linergy LADT3R1, 4-pole mechanical interlock kit for changeover contactors, obsolete.","salesMarkdown":"The LADT3R1 is a mechanical interlock kit from the TeSys Linergy range, designed to assemble 4-pole changeover contactors using LC1DT20 through DT40 contactors with spring terminals. It provides the mechanical interlock set of power connections — no electrical interlock is included. This kit physically prevents both contactors from closing simultaneously, which is the core requirement for any changeover (reversing or source-transfer) application. This part is officially obsolete. There is no listed direct successor from Schneider Electric. The 4-pole (4P) description means this kit handles two contactors, each with four power poles — typical for three-phase plus neutral switching in a changeover scheme. The spring-terminal compatibility (LC1DT20–DT40) tells you the bus-bar pitch and clamping geometry match that specific contactor family; it will not fit screw-terminal or lug-type versions without modification. No electrical interlock is included, so the circuit designer must add any required electrical or logic-level interlocking externally.","metaTitle":"Schneider Electric LADT3R1 TeSys changeover contactor kit, 4","metaDescription":"LADT3R1 is a 4-pole mechanical interlock kit for assembling changeover contactors in the TeSys D / Deca range. Now obsolete; sourced to order against an RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Obsolete","categoryPath":["Motor Control Accessories"],"specifications":{"Range":"TeSys Linergy","Kit composition":"Mechanical interlock Set of power connection","lifecycle_stage":"current","Range of product":"TeSys D TeSys Deca","Device short name":"LAD","Poles description":"4P","Product or component type":"Kits for changeover contactor"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/73adc601a4d55a6093ce25305419eb09.pdf","sourceUrl":"https://www.se.com/my/en/product/LADT3R1/kit-for-assembling-4p-changeover-contactors-lc1dt20dt40-with-spring-terminals-without-electrical-interlock/","alternativesUrl":"https://aoctrl.com/api/mcp/products/LADT3R1/alternatives.json"},"ai":{"faq":[{"question":"What is the closest alternative to LADT3R1 in the TeSys family?","answer":"No direct pin-compatible replacement is listed. Any alternative must match the 4-pole mechanical interlock function and the LC1DT20–DT40 spring-terminal contactor frame. A sourcing specialist can evaluate available cross-references on request."},{"question":"What is LADT3R1's listed range?","answer":"It belongs to the TeSys Linergy range and is compatible with TeSys D and TeSys Deca contactors."},{"question":"What is the kit composition?","answer":"The kit is a mechanical interlock set of power connections for assembling a 4-pole changeover contactor pair. It does not include an electrical interlock."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/schneider/LADT3R1","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/LADT3R1 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-09-02T08:15:54.622Z","lastPublished":"2026-09-02T08:15:54.622Z","indexable":true}}