{"product_id":"schneider-electric-a17-9-overload-unit-reliable-delivery","title":"A17.9 | Schneider Electric Class 20 Thermal Overload Unit Melting Alloy Type A\/S","description":"\u003ch4\u003eDescription \u003c\/h4\u003e\n\u003cp data-start=\"0\" data-end=\"451\"\u003eThe Schneider Electric A17.9 is a thermal overload unit designed to protect motors and control circuits from prolonged overcurrent conditions. Built with a melting alloy mechanism and classified as Class 20, this unit provides reliable overload protection when used in motor starters and controllers.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications \u003c\/h4\u003e\n\u003ctable style=\"width: 99.9384%; height: 235.2px;\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"width: 35.1311%; height: 19.6px;\"\u003e\u003cstrong\u003eCondition\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 64.7354%; height: 19.6px;\"\u003eNew\/Never Used Surplus\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"width: 35.1311%; height: 19.6px;\"\u003e\u003cstrong\u003eBrand\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 64.7354%; height: 19.6px;\"\u003eSchneider Electric\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"width: 35.1311%; height: 19.6px;\"\u003e\u003cstrong\u003eCategory\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 64.7354%; height: 19.6px;\"\u003eContactors \u0026amp; Starters\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"width: 35.1311%; height: 19.6px;\"\u003e\u003cstrong\u003ePart Number\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 64.7354%; height: 19.6px;\"\u003eA17.9\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"width: 35.1311%; height: 19.6px;\"\u003e\u003cstrong\u003eSubcategory\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 64.7354%; height: 19.6px;\"\u003eThermal Overload \/ Heater\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"width: 35.1311%; height: 19.6px;\"\u003e\u003cstrong\u003eProduct Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 64.7354%; height: 19.6px;\"\u003eA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"width: 35.1311%; height: 19.6px;\"\u003e\u003cstrong\u003eThermal Overload Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 64.7354%; height: 19.6px;\"\u003eMelting Alloy\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"width: 35.1311%; height: 19.6px;\"\u003e\u003cstrong\u003eMotor Tripping Class\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 64.7354%; height: 19.6px;\"\u003eClass 20\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"width: 35.1311%; height: 19.6px;\"\u003e\u003cstrong\u003eHeater Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 64.7354%; height: 19.6px;\"\u003eType A \/ Type S\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"width: 35.1311%; height: 19.6px;\"\u003e\u003cstrong\u003eGTIN\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 64.7354%; height: 19.6px;\"\u003e785901585497\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"width: 35.1311%; height: 19.6px;\"\u003e\u003cstrong\u003eReturnable\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 64.7354%; height: 19.6px;\"\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch4\u003eInformation About A17.9\u003c\/h4\u003e\n\u003cp\u003eThe A17.9 is a thermal overload unit from the Schneider Electric A range, engineered to protect motors, motor controllers, and branch circuit conductors from excessive heating caused by sustained overload conditions. It utilizes a melting alloy construction that responds predictably to prolonged overcurrent, including locked-rotor scenarios. Classified as a Class 20 thermal unit, it trips within 20 seconds or less under defined overload conditions, ensuring timely interruption of the control circuit. Short-circuit and ground-fault protection remain the responsibility of upstream fuses or circuit breakers, allowing the A17.9 to focus exclusively on thermal overload protection.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKey Features\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eClass 20 Thermal Protection: Designed to trip within defined time limits during sustained motor overload conditions.\u003c\/li\u003e\n\u003cli\u003eMelting Alloy Construction: Uses a heat-sensitive alloy to provide consistent and repeatable overload response.\u003c\/li\u003e\n\u003cli\u003eType A and Type S Compatibility: Supports standardized integration with compatible motor starters and controllers.\u003c\/li\u003e\n\u003cli\u003eMotor and Conductor Protection: Safeguards motors and branch circuit conductors from excessive thermal stress.\u003c\/li\u003e\n\u003cli\u003eSingle-Piece Heater Design: Allows motor current to pass directly through the internal heater element for accurate sensing.\u003c\/li\u003e\n\u003cli\u003eControl Circuit Interruption: Opens control contacts during overload events to stop motor operation and prevent damage.\u003c\/li\u003e\n\u003cli\u003eIndustrial Reliability: Designed for long-term use in motor control and industrial automation environments.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe A17.9 delivers the reliability and precision required for dependable motor overload protection in industrial motor control applications.\u003c\/p\u003e","brand":"Schneider Electric","offers":[{"title":"Default Title","offer_id":48376289001770,"sku":"A17.9","price":45.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/0392\/4266\/files\/A_Square-D_DA20_1500x1500_0a16e85e-ac81-42b0-b39e-afd576410304.jpg?v=1715267016","url":"https:\/\/iqelectro.com\/products\/schneider-electric-a17-9-overload-unit-reliable-delivery","provider":"IQElectro","version":"1.0","type":"link"}