{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LR3D3656","brand":"Schneider Electric","brandSlug":"schneider","productSlug":"LR3D3656","canonicalUrl":"https://aoctrl.com/schneider/LR3D3656","factsUrl":"https://aoctrl.com/api/mcp/products/LR3D3656","rawCanonicalId":null},"summary":{"shortDescription":"Schneider Electric TeSys Deca LR3D3656, non-differential thermal overload relay, 48-65 A adjustment range, Class 10A, obsolete.","salesMarkdown":"The LR3D3656 is a non-differential thermal overload relay from the TeSys Deca series, designed for motor protection. Its thermal protection adjustment range is 48...65 A, and it carries a Class 10A tripping curve per IEC 60947-4-1. Mounts directly under a TeSys D contactor or on a DIN rail with specific accessories. The control circuit uses screw-clamp terminals (1...2.5 mm²), and the power circuit terminates via M6 ring lugs. IP20 finger-safe protection is standard for panel installation. Phase failure sensitivity: trips at 130 % of Ir on two phases when the third is at zero — catches a lost phase before the motor cooks. The signalling circuit is rated 5 A conventional free air thermal current (Ith), with a permissible 0.95 A at 380 V AC-15 and 0.06 A at 440 V DC-13. That DC-13 figure is low: if you're switching a DC control loop, check your load current against it. Approvals cover EN/IEC 60947-4-1, UL 60947-4-1, CSA C22.2 No 60947-4-1, and GB/T 14048.4 — accepted in North American, European, and Chinese panels. Dielectric strength tested at 1.89 kV 50 Hz per IEC 60947-1. Rated impulse withstand voltage is 6 kV.","metaTitle":"TeSys LR3D3656 thermal overload relay, 48-65 A, obsolete","metaDescription":"Obsolete TeSys Deca thermal overload relay LR3D3656, 48-65 A, class 10A. UL/CSA/IEC. Sourced to order against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Obsolete","categoryPath":["Overload Relays"],"specifications":{"Depth":"4.8 in (123 mm)","Range":"TeSys","Width":"2.2 in (55 mm)","Height":"2.8 in (70 mm)","Category":"22347-CONTACTOR,D-LINE,OVERLOADS-NEW","Standards":"EN/IEC 60947-4-1 EN/IEC 60947-5-1 UL 60947-4-1 UL 60947-5-1 CSA C22.2 No 60947-4-1 CSA C22.2 No 60947-5-1 GB/T 14048.4 GB/T 14048.5","Control type":"Red push-button stop Blue push-button reset","Network type":"DC AC","Product name":"TeSys LRD TeSys Deca","lifecycle_stage":"current","Connection pitch":"0.7 in (17.5 mm)","Flame retardance":"V1 conforming to UL 94","Mounting support":"Plate, with specific accessories Rail, with specific accessories Under contactor","Device short name":"LR3D","Network Frequency":"0...400 Hz","Relay application":"Motor protection","Tightening torque":"Control circuit 15.05 lbf.in (1.7 N.m) screw clamp terminals Power circuit 53.1 lbf.in (6 N.m) lugs-ring terminals M6","Climatic withstand":"IACS E10","Tripping threshold":"1.14 +/- 0.06 Ir IEC 60947-4-1","Dielectric strength":"1.89 kV 50 Hz IEC 60947-1","Permissible current":"0.95 A 380 V AC-15 signalling circuit 0.06 A 440 V DC-13 signalling circuit","Mechanical robustness":"Shocks15 Gn for 11 ms IEC 60068-2-7 Vibrations4 gn IEC 60068-2-6","Associated fuse rating":"4 A gG for signalling circuit 4 A BS for signalling circuit","Thermal overload class":"Class 10A IEC 60947-4-1","Connections - terminals":"Control circuit screw clamp terminals 2 0.002...0.004 in² (1...2.5 mm²) flexible without cable end Control circuit screw clamp terminals 2 0.002...0.004 in² (1...2.5 mm²) flexible with cable end Control circuit screw clamp terminals 2 0.002...0.004 in² (1...2.5 mm²) solid without cable end Power circuit lugs-ring terminals","IP degree of protection":"IP20 conforming to IEC 60529","Temperature compensation":"-4...140 °F (-20...60 °C)","Phase failure sensitivity":"Tripping current 130 % of Ir on two phase, the last one at 0","Product or Component Type":"Non differential thermal overload relay","Auxiliary contact composition":"1 NO + 1 NC","[Ui] rated insulation voltage":"Power circuit 600 V CSA Power circuit 600 V UL Power circuit 690 V IEC 60947-4-1","[Ue] rated operational voltage":"690 V AC 0...400 Hz power circuit IEC 60947-4-1","Ambient Air Temperature for Storage":"-76...158 °F (-60...70 °C)","Thermal protection adjustment range":"48...65 A","Ambient air temperature for operation":"-4...140 °F (-20...60 °C) without derating IEC 60947-4-1","[Uimp] rated impulse withstand voltage":"6 kV","[Ith] conventional free air thermal current":"5 A signalling circuit"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/e20171d9a1a5c38095203ff617a9c825.pdf","sourceUrl":"https://www.se.com/ie/en/product/LR3D3656/tesys-deca-thermal-overload-relays-48-65-a-class-10a/","alternativesUrl":"https://aoctrl.com/api/mcp/products/LR3D3656/alternatives.json"},"ai":{"faq":[{"question":"What are the key ratings for the LR3D3656?","answer":"Thermal protection adjustment range 48...65 A, Class 10A trip curve. Signalling circuit: 5 A Ith, 0.95 A at 380 V AC-15, 0.06 A at 440 V DC-13. Rated insulation voltage 690 V IEC, 600 V UL/CSA. Phase failure sensitivity trips at 130 % of Ir on two phases."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/schneider/LR3D3656","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/LR3D3656 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}}