{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LRD3321","brand":"Schneider Electric","brandSlug":"schneider","productSlug":"LRD3321","canonicalUrl":"https://aoctrl.com/schneider/LRD3321","factsUrl":"https://aoctrl.com/api/mcp/products/LRD3321","rawCanonicalId":null},"summary":{"shortDescription":"LRD3321 - THERMAL OVERLOAD RELAY by SCHNEIDER ELECTRIC","salesMarkdown":null,"metaTitle":null,"metaDescription":null,"metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":[],"specifications":{"Depth":"115 mm","Range":"TeSys","Width":"70 mm","Height":"81 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 GB/T 14048.4 GB/T 14048.5","Control type":"Red push-button: stop Blue push-button: reset","Network type":"DC","Product name":"TeSys LRD TeSys Deca","lifecycle_stage":"current","Device short name":"LRD","Relay application":"Motor protection","Climatic withstand":"conforming to IACS E10","Tripping threshold":"1.14 +/- 0.06 Ir conforming to IEC 60947-4-1","Dielectric strength":"2.2 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","Associated fuse rating":"4 A gG for signalling circuit 4 A BS for signalling circuit","Thermal overload class":"Class 10A conforming to IEC 60947-4-1","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","[Ue] rated operational voltage":"1000 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":"12...18 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":"$146.98","priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/8524bc6f1fa18a2631def4cc8c85ead2.pdf","sourceUrl":null,"alternativesUrl":"https://aoctrl.com/api/mcp/products/LRD3321/alternatives.json"},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/schneider/LRD3321","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/LRD3321 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-09-02T08:21:01.794Z","lastPublished":"2026-09-02T08:21:01.794Z","indexable":true}}