{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LRD3314","brand":"Schneider Electric","brandSlug":"schneider","productSlug":"LRD3314","canonicalUrl":"https://aoctrl.com/schneider/LRD3314","factsUrl":"https://aoctrl.com/api/mcp/products/LRD3314","rawCanonicalId":null},"summary":{"shortDescription":"Schneider Electric TeSys Deca LRD3314 differential thermal overload relay, 7-10 A adjustment range, Class 10A, 1 NO + 1 NC auxiliary contacts, screw clamp terminals, for LC1D80 contactor.","salesMarkdown":"The LRD3314 is a differential thermal overload relay from the TeSys Deca range, designed to protect motors against overload, phase failure, and phase imbalance. It mounts directly to the LC1D80 contactor, forming a compact motor starter package for a panel. The thermal protection adjustment range is 7-10 A, which means you set the dial to match the motor's full-load current — the relay then tracks the thermal state of the motor windings via a bimetallic strip heated by the line current. Trip class is Class 10A per IEC 60947-4-1, so it will trip within 10 seconds at 7.2× the set current. That's the standard for general-purpose motor starting — it lets the motor accelerate under load without nuisance tripping but still clears a stalled rotor fast enough to prevent winding damage. Phase failure sensitivity is built in: the relay trips at 130 % of Ir on two phases when the third is at zero. That catches a blown fuse or broken wire before the motor single-phases to failure. Mounts directly under the LC1D80 contactor — no separate wiring between the contactor and the overload for the power circuit. The auxiliary contact composition is 1 NO + 1 NC, wired into the control circuit to signal the trip and to break the contactor coil. The red push-button is stop (manual trip test), the blue push-button is reset. IP20 finger-safe protection is fine inside a closed panel. The signalling circuit is rated 3 A at 120 V AC-15 and 0.22 A at 125 V DC-13. That's enough for a PLC input or a relay coil, but watch the DC rating if you're switching a DC contactor or a DC-powered indicator — the DC-13 value is the inductive load limit. Associated fuse rating is 4 A gG or 4 A BS for the signalling circuit. Approvals cover the major industrial markets: EN/IEC 60947-4-1 and 60947-5-1, UL 60947-4-1 and 60947-5-1, CSA C22.2 No 60947-4-1 and 60947-5-1, plus GB/T 14048.4 and 14048.5 for the Chinese market. Climatic withstand conforms to IACS (marine/offshore). Dielectric strength is 2.2 kV at 50 Hz per IEC 60947-1, and rated impulse withstand voltage is 6 kV. Temperature compensation is active from -20 to 60 °C, so the trip curve stays accurate across the panel's ambient range without derating. Dimensions: 81 mm high, 70 mm wide, 115 mm deep. The depth is the dimension that projects forward from the contactor face — check clearance to the enclosure door or busbar system.","metaTitle":"Schneider LRD3314 TeSys Deca thermal overload relay, 7-10 A,","metaDescription":"Schneider LRD3314 thermal overload relay, 7-10 A adjustment, Class 10A, 1 NO + 1 NC, for LC1D80 contactor. Active production. UL/CSA/IEC approved.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Overload Relays"],"specifications":{"Depth":"115 mm","Range":"TeSys","Width":"70 mm","title":"LRD3314","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","description":"Thermal overload relay,TeSys Deca,7-10A,1NO+1NC,class 10A,screw clamp,for LC1D80","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":"3 A at 120 V AC-15 for signalling circuit 0.22 A at 125 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":"7...10 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,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/32335cd2a886e43afcc48247803a2dec.pdf","sourceUrl":"https://www.se.com/ie/en/product/LRD3314/thermal-overload-relaytesys-deca710a1no+1ncclass-10ascrew-clampfor-lc1d80/"},"ai":{"faq":[{"question":"What are the key approvals for the LRD3314?","answer":"The LRD3314 carries approvals to 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, and GB/T 14048.4 and 14048.5."},{"question":"What contactor does the LRD3314 mount to?","answer":"The LRD3314 mounts directly to the Schneider LC1D80 contactor. It is part of the TeSys Deca family designed for that frame size."},{"question":"What is the adjustment range and trip class?","answer":"The thermal protection adjustment range is 7-10 A, and the trip class is Class 10A per IEC 60947-4-1, meaning it trips within 10 seconds at 7.2× the set current."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/schneider/LRD3314","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/LRD3314 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}}