{"product_id":"schneider-electric-square-d-lrd21-overload-relay","title":"Schneider Electric (Square D) LRD21 Overload Relay","description":"\u003cp data-start=\"0\" data-end=\"1009\"\u003eThe \u003cstrong data-start=\"4\" data-end=\"64\"\u003eSchneider Electric Square D LRD21 Thermal Overload Relay\u003c\/strong\u003e is designed to provide reliable motor protection for three-phase motor control applications. Part of the TeSys Deca motor control range, this \u003cstrong data-start=\"207\" data-end=\"232\"\u003e12-18A overload relay\u003c\/strong\u003e features a Class 10A tripping characteristic and is engineered to help protect motors against overload conditions and phase failure. Designed for direct mounting with compatible TeSys D contactors including LC1D18, LC1D25, LC1D32, and LC1D38, the LRD21 offers a compact and efficient motor starter solution. Its adjustable current setting range allows precise matching to motor full-load current requirements, while the built-in \u003cstrong data-start=\"662\" data-end=\"694\"\u003e1NO + 1NC auxiliary contacts\u003c\/strong\u003e support control and signaling functions. With manual or automatic reset capability, ambient temperature compensation, and a rated insulation voltage up to 690V, this \u003cstrong data-start=\"861\" data-end=\"896\"\u003emotor overload protection relay\u003c\/strong\u003e is widely used in industrial control panels, HVAC equipment, pumps, compressors, and other motor-driven systems.\u003c\/p\u003e\n\u003cp data-start=\"1011\" data-end=\"1027\"\u003e\u003cstrong data-start=\"1011\" data-end=\"1027\"\u003eKey Benefits\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"1028\" data-end=\"1462\"\u003e\n\u003cli data-section-id=\"1ujgjm4\" data-start=\"1028\" data-end=\"1082\"\u003eAdjustable overload protection range from 12A to 18A\u003c\/li\u003e\n\u003cli data-section-id=\"1a6pdo\" data-start=\"1083\" data-end=\"1143\"\u003eClass 10A thermal trip characteristic for motor protection\u003c\/li\u003e\n\u003cli data-section-id=\"14guo5l\" data-start=\"1144\" data-end=\"1189\"\u003eProvides overload and phase-loss protection\u003c\/li\u003e\n\u003cli data-section-id=\"19fqp6s\" data-start=\"1190\" data-end=\"1245\"\u003eCompatible with Schneider Electric TeSys D contactors\u003c\/li\u003e\n\u003cli data-section-id=\"1wrbwxs\" data-start=\"1246\" data-end=\"1312\"\u003eIncludes 1 normally open and 1 normally closed auxiliary contact\u003c\/li\u003e\n\u003cli data-section-id=\"tk7xu\" data-start=\"1313\" data-end=\"1350\"\u003eManual or automatic reset operation\u003c\/li\u003e\n\u003cli data-section-id=\"1p5dy81\" data-start=\"1351\" data-end=\"1400\"\u003eAmbient temperature compensated thermal sensing\u003c\/li\u003e\n\u003cli data-section-id=\"fvpd2v\" data-start=\"1401\" data-end=\"1462\"\u003eSuitable for industrial motor control and HVAC applications\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"1464\" data-end=\"1484\"\u003e\u003cstrong data-start=\"1464\" data-end=\"1484\"\u003eCommon Questions\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-start=\"1486\" data-end=\"1716\"\u003e\u003cstrong data-start=\"1486\" data-end=\"1554\"\u003eWhat motors is the Schneider Electric LRD21 designed to protect?\u003c\/strong\u003e\u003cbr data-start=\"1554\" data-end=\"1557\"\u003eThe LRD21 is designed for motors with a full-load current setting between 12A and 18A and is commonly used with TeSys D contactors in motor starter assemblies.\u003c\/p\u003e\n\u003cp data-start=\"1718\" data-end=\"1941\"\u003e\u003cstrong data-start=\"1718\" data-end=\"1770\"\u003eDoes the LRD21 provide phase-failure protection?\u003c\/strong\u003e\u003cbr data-start=\"1770\" data-end=\"1773\"\u003eYes. The relay features differential thermal sensing that helps protect motors from overload conditions and phase-loss situations that can cause overheating and damage.\u003c\/p\u003e\n\u003cp data-start=\"1943\" data-end=\"2132\"\u003e\u003cstrong data-start=\"1943\" data-end=\"2006\"\u003eCan this overload relay be mounted directly to a contactor?\u003c\/strong\u003e\u003cbr data-start=\"2006\" data-end=\"2009\"\u003eYes. The LRD21 is designed for direct mounting to compatible TeSys D contactors, creating a compact motor starter assembly.\u003c\/p\u003e\n\u003cp data-start=\"2134\" data-end=\"2328\" data-is-last-node=\"\" data-is-only-node=\"\"\u003e\u003cstrong data-start=\"2134\" data-end=\"2149\"\u003eDisclaimer:\u003c\/strong\u003e While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eLRD21 is the cross for 151194 \u003c\/span\u003e\u003c\/p\u003e","brand":"Schneider Electric (Square D)","offers":[{"title":"Default Title","offer_id":42929570283698,"sku":"LRD21","price":122.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1838\/2375\/files\/Pic_936be856-d1d8-47c6-b92e-077d2648b8fc.png?v=1780445338","url":"https:\/\/www.gsistore.com\/en-ca\/products\/schneider-electric-square-d-lrd21-overload-relay","provider":"GSIstore","version":"1.0","type":"link"}