{"product_id":"siemens-3ru1146-4fb0-thermal-overload-relay-28-40a-size-s3","title":"Siemens 3RU1146-4FB0 Thermal Overload Relay 28-40A Size S3","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe SIEMENS 3RU1146-4FB0 is a thermal overload relay designed for motor protection with an adjustable current range of 28 to 40 amps and a Class 10 trip rating. This Size S3 relay features screw terminals for main and auxiliary circuits and is intended for contactor mounting. It provides phase loss sensitivity and manual-automatic reset functionality.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eAdjustable current range: 28 to 40 A\u003c\/li\u003e\n  \u003cli\u003eTrip class: 10\u003c\/li\u003e\n  \u003cli\u003eAuxiliary contacts: 1 NC, 1 NO\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eProduct Highlights\u003c\/h4\u003e\n\u003cp\u003eThermal overload relay with adjustable current range for motor protection. Features screw terminals and contactor mounting.\u003c\/p\u003e\n\u003ch3\u003eProduct Information\u003c\/h3\u003e\n\u003ch4\u003eStandard Information\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: SIEMENS\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 3RU1146-4FB0\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCountry of Origin\u003c\/strong\u003e: United States\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMPN\u003c\/strong\u003e: 3RU1146-4FB0\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: Siemens\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCategory\u003c\/strong\u003e: Motor Control\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eItem Subcategory\u003c\/strong\u003e: Overload Relay\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFamily\u003c\/strong\u003e: Sirius\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eType\u003c\/strong\u003e: 3RU11\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRelay Style\u003c\/strong\u003e: Thermal\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAmperage Maximum\u003c\/strong\u003e: 40\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAmperage Minimum\u003c\/strong\u003e: 28\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNumber of Poles\u003c\/strong\u003e: 3\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMain Circuit Connection\u003c\/strong\u003e: Screw terminal\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAuxiliary Circuit Connection\u003c\/strong\u003e: Screw terminal\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRated Insulation Voltage\u003c\/strong\u003e: 1000 V\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSurge Voltage Resistance\u003c\/strong\u003e: 8 kV\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAuxiliary Contacts\u003c\/strong\u003e: 1 NC, 1 NO\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMounting\u003c\/strong\u003e: Contactor mounting, rotatable +\/-135°\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShort-Circuit Protection\u003c\/strong\u003e: Requires gG fuse links (80 A or 160 A depending on coordination)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eProtection Class\u003c\/strong\u003e: IP20 (front)\u003c\/li\u003e\n\u003c\/ul\u003e\n","brand":"SIEMENS","offers":[{"title":"Default Title","offer_id":50996541948210,"sku":"3RU1146-4FB0","price":325.26,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/297719725.jpg?v=1774019747","url":"https:\/\/voomisupply.com\/products\/siemens-3ru1146-4fb0-thermal-overload-relay-28-40a-size-s3","provider":"Voomi Supply","version":"1.0","type":"link"}