{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LRD15326","brand":"Schneider Electric","brandSlug":"schneider","productSlug":"LRD15326","canonicalUrl":"https://aoctrl.com/schneider/LRD15326","factsUrl":"https://aoctrl.com/api/mcp/products/LRD15326","rawCanonicalId":null},"summary":{"shortDescription":"Schneider Electric TeSys Deca LRD15326 differential thermal overload relay, 25...32 A adjustment range, Class 20, obsolete.","salesMarkdown":"The Schneider Electric LRD15326 is a TeSys Deca differential thermal overload relay for motor protection, with a thermal protection adjustment range of 25...32 A and a Class 20 tripping curve per IEC 60947-4-1. It provides phase failure sensitivity — tripping at 130 % of Ir on two phases when the third is at 0 — and a tripping threshold of 1.14 +/- 0.06 Ir conforming to IEC 60947-4-1. The relay is rated for a power circuit operational voltage of 690 V AC at 0...400 Hz and carries a rated insulation voltage of 690 V per IEC 60947-4-1 (600 V per UL/CSA). The LRD15326 is classified as Obsolete by the manufacturer. The 25...32 A adjustment range and Class 20 thermal memory mean this relay is sized for a motor with a full-load current in that band, and it allows a longer start duration (up to 20 seconds at locked-rotor current) before tripping — typical for high-inertia loads like fans or centrifuges. The 1 NO + 1 NC auxiliary contact composition provides a standard alarm and trip signal pair for the control circuit, rated at 1.5 A at 240 V AC-15 and 0.1 A at 250 V DC-13. Mounts under the contactor or on a plate/rail with specific accessories; the 45 mm width and 92 mm depth fit the standard TeSys Deca footprint. Certified to EN/IEC 60947-4-1, EN/IEC 60947-5-1, UL 60947-4-1, UL 60947-5-1, and CSA C22.2 No 60947-4-1 and 60947-5-1 — accepted in North American and European panels. IP20 finger-safe protection per IEC 60529; suitable for enclosed panel mounting.","metaTitle":"Schneider LRD15326 TeSys thermal overload relay, 25-32 A, ob","metaDescription":"Schneider LRD15326 TeSys Deca differential thermal overload relay, 25-32 A, Class 20. Obsolete. Sourced to order against RFQ. UL/CSA/IEC certified.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Obsolete","categoryPath":["Overload Relays"],"specifications":{"Depth":"92 mm","Range":"TeSys","Width":"45 mm","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","Control type":"Red push-button: stop Blue push-button: reset","Network type":"DC AC","Product name":"TeSys LRD TeSys Deca","Fire resistance":"850 °C conforming to IEC 60695-2-1","lifecycle_stage":"current","Connection pitch":"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":"LRD","Network frequency":"0...400 Hz","Relay application":"Motor protection","Tightening torque":"Control circuit: 1.7 N.m - on screw clamp terminals Power circuit: 2.3 N.m - on lugs-ring terminals M4","Climatic withstand":"conforming to IACS E10","Tripping threshold":"1.14 +/- 0.06 Ir conforming to IEC 60947-4-1","Dielectric strength":"1.89 kV at 50 Hz conforming to IEC 60947-1","Permissible current":"1.5 A at 240 V AC-15 for signalling circuit 0.1 A at 250 V DC-13 for signalling circuit","Mechanical robustness":"Vibrations: 6 Gn conforming to IEC 60068-2-6 Shocks: 15 Gn for 11 ms conforming to IEC 60068-2-7","Associated fuse rating":"4 A gG for signalling circuit 4 A BS for signalling circuit","Thermal overload class":"Class 20 conforming to IEC 60947-4-1","Connections - terminals":"Control circuit: screw clamp terminals 2 cable(s) 1...2.5 mm² flexible without cable end Control circuit: screw clamp terminals 2 cable(s) 1...2.5 mm² flexible with cable end Control circuit: screw clamp terminals 2 cable(s) 1...2.5 mm² solid without cable end Power circuit: lugs-ring terminals","IP degree of protection":"IP20 conforming to IEC 60529","Temperature compensation":"-20...60 °C","Phase failure sensitivity":"Tripping current 130 % of Ir on two phase, the last one at 0","Product or component type":"Differential thermal overload relay","Auxiliary contact composition":"1 NO + 1 NC","[Ui] rated insulation voltage":"Power circuit: 600 V conforming to CSA Power circuit: 600 V conforming to UL Power circuit: 690 V conforming to IEC 60947-4-1","[Ue] rated operational voltage":"690 V AC 0...400 Hz for power circuit conforming to IEC 60947-4-1","Ambient air temperature for storage":"-60...70 °C","Thermal protection adjustment range":"25...32 A","Ambient air temperature for operation":"-20...60 °C without derating conforming to IEC 60947-4-1","[Uimp] rated impulse withstand voltage":"6 kV","[Ith] conventional free air thermal current":"5 A for signalling circuit"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/9acc7cafc6ae2e5f0a1cfaab30c2667b.pdf","sourceUrl":"https://www.se.com/sg/en/product/LRD15326/tesys-deca-thermal-overload-relays-25-32-a-class-20/","alternativesUrl":"https://aoctrl.com/api/mcp/products/LRD15326/alternatives.json"},"ai":{"faq":[{"question":"What replaces the LRD15326?","answer":"No official successor order code is listed in the available records. Sourcing for this exact part runs through surplus and broker channels."},{"question":"What are the key ratings for the LRD15326?","answer":"Thermal protection adjustment range 25...32 A, Class 20 tripping curve, phase failure sensitivity, rated operational voltage 690 V AC, auxiliary contacts 1 NO + 1 NC rated 1.5 A at 240 V AC-15."},{"question":"What standards does the LRD15326 comply with?","answer":"It complies with EN/IEC 60947-4-1, EN/IEC 60947-5-1, UL 60947-4-1, UL 60947-5-1, and CSA C22.2 No 60947-4-1 and 60947-5-1."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/schneider/LRD15326","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/LRD15326 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}}