{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LRD22TQ","brand":"Schneider Electric","brandSlug":"schneider","productSlug":"LRD22TQ","canonicalUrl":"https://aoctrl.com/schneider/LRD22TQ","factsUrl":"https://aoctrl.com/api/mcp/products/LRD22TQ","rawCanonicalId":null},"summary":{"shortDescription":"Schneider Electric TeSys Deca LRD22TQ differential thermal overload relay, 16-24 A adjustment range, Class 10A, 1 NO + 1 NC auxiliary contacts.","salesMarkdown":"The Schneider Electric LRD22TQ is a differential thermal overload relay from the TeSys Deca line, designed for motor protection in three-phase circuits. Its thermal protection adjustment range covers 16 to 24 A, with a Class 10A tripping characteristic per IEC 60947-4-1 — meaning it will trip within 10 seconds at 7.2× the set current, fast enough to protect standard induction motors during a stall or locked-rotor condition. The 1 NO + 1 NC auxiliary contact set provides a separate signal circuit for the PLC or annunciator, rated 1.5 A at 240 V AC-15 for signalling duty. The 16-24 A adjustment range sets the relay for motors with a full-load current in that band — common for 7.5 to 10 HP motors at 460 V, or 5 to 7.5 HP at 230 V. The Class 10A trip class is the standard for general-purpose induction motors; if your application has a long acceleration time or high-inertia load, you may need a Class 20 or 30 relay instead. Phase-failure sensitivity is built in: the relay trips at 130% of the set current on two phases when the third is at zero — this protects the motor from single-phasing, which is the most common cause of winding failure in field applications. Rated insulation voltage is 690 V AC per IEC 60947-4-1, and 600 V per UL/CSA — sufficient for 480 V and 600 V class systems. Impulse withstand is 6 kV, so it coordinates with standard motor-starter components in a panel. Listed to 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, and GB/T 14048.4/14048.5. Also carries EN 50495 for safety-related applications. Flame retardance is V1 per UL 94.","metaTitle":"Schneider LRD22TQ TeSys Deca Thermal Overload Relay, 16-24 A","metaDescription":"Schneider Electric LRD22TQ thermal overload relay, TeSys Deca series. 16-24 A adjustment range, Class 10A. UL/CSA/IEC listed. Sourced to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Obsolete","categoryPath":["Overload Relays"],"specifications":{"Depth":"2.8 in (70 mm)","Range":"TeSys","Width":"1.8 in (45 mm)","Height":"2.6 in (66 mm)","Category":"US10I1222347","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 EN 50495","Control type":"Red push-button stop Blue push-button reset","Network type":"DC AC","Product name":"TeSys LRD TeSys Deca","lifecycle_stage":"current","Flame retardance":"V1 conforming to UL 94","Mounting support":"Plate, with specific accessories Rail, with specific accessories Under contactor","Quantity per Set":"Set of 10","Device short name":"LRD","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 22.1 lbf.in (2.5 N.m) screw clamp terminals","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":"1.5 A 240 V AC-15 signalling circuit 0.1 A 250 V DC-13 signalling circuit","Mechanical robustness":"Vibrations6 Gn IEC 60068-2-6 Shocks15 Gn for 11 ms IEC 60068-2-7","Nbr. of units in pkg.":"1","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 Power circuit screw clamp terminals 1 0.002...0.02 in² (1.5...10 mm²) flexible without cable end Power circuit screw clamp terminals 1 0.002...0.009 in² (1...6 mm²) flexible with cable end Power circuit screw clamp terminals 1 0.002...0.02 in² (1.5...10 mm²) solid","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":"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":"16...24 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/6288a4f7b330f50182e1098bb21e3444.pdf","sourceUrl":"https://www.se.com/vn/en/product/LRD22TQ/thermal-overload-relay-tesys-deca-16-24-a-class-10a-tq-10/","alternativesUrl":"https://aoctrl.com/api/mcp/products/LRD22TQ/alternatives.json"},"ai":{"faq":[{"question":"What are the key ratings for the LRD22TQ?","answer":"Thermal protection adjustment range is 16 to 24 A. Trip class is Class 10A per IEC 60947-4-1. Auxiliary contacts are 1 NO + 1 NC, rated 1.5 A at 240 V AC-15 for signalling. Rated insulation voltage is 690 V AC (IEC) / 600 V (UL/CSA)."},{"question":"What compliance documentation does Schneider provide for the LRD22TQ?","answer":"The relay is certified 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, GB/T 14048.4, GB/T 14048.5, and EN 50495. Flame retardance is V1 per UL 94."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/schneider/LRD22TQ","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/LRD22TQ 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}}