{"product_id":"3ru1146-4kb0-siemens-sirius-thermal-overload-relay-57-75a-class-10-size-s3","title":"3RU1146-4KB0 - Siemens Sirius Thermal Overload Relay 57-75A Class 10 Size S3","description":" \t\t\t\t\t\t\t\t\t\t\u003ch2\u003e3RU1146-4KB0\u003c\/h2\u003e                                         \u003cbr\u003e \t\t\t\t\t\t\t\t\t\t\u003cb\u003e3RU1146-4KB0\u003c\/b\u003e is a Siemens Sirius thermal overload relay designed for three-phase motor protection with IEC ratings and Class 10 tripping characteristics. This Size S3 relay provides reliable protection against overload, phase asymmetry, and phase failure in industrial motor control applications. The relay features automatic and manual reset options, integrated TEST and STOP functions, and mounts directly to 3RT1044, 3RT1045, or 3RT1046 Siemens contactors. \u003cb\u003eKey Specifications\u003c\/b\u003e\u003cul\u003e\n\u003cli\u003eAmperage Range: 57 - 75 A adjustable\u003c\/li\u003e\n\u003cli\u003eTrip Class: Class 10\u003c\/li\u003e\n\u003cli\u003eContactor Size: S3\u003c\/li\u003e\n\u003cli\u003eMounting Type: Direct mounting to contactor\u003c\/li\u003e\n\u003cli\u003eAuxiliary Contacts: 1 NO + 1 NC\u003c\/li\u003e\n\u003cli\u003eOperating Voltage: 1000 V AC maximum\u003c\/li\u003e\n\u003cli\u003eMain Circuit Connection: Screw-type terminals\u003c\/li\u003e\n\u003cli\u003eAuxiliary Circuit Connection: Screw-type terminals\u003c\/li\u003e\n\u003cli\u003ePower Loss: 16.5 W typical\u003c\/li\u003e\n\u003cli\u003eInsulation Voltage: 1000 V rated\u003c\/li\u003e\n\u003cli\u003eSurge Voltage Resistance: 8 kV\u003c\/li\u003e\n\u003cli\u003eProtection Class: IP20\u003c\/li\u003e\n\u003c\/ul\u003eAt \u003cb\u003eEssential Parts\u003c\/b\u003e, we offer \u003cb\u003efast shipping\u003c\/b\u003e, \u003cb\u003elowest price\u003c\/b\u003e, and \u003cb\u003eexpert support\u003c\/b\u003e to help you get the right product every time. \t\t\t\t\t\t\t\t\t\t\u003cbr\u003e                                          \t\t\t\t\t\t\t\t\t\t\u003ch3\u003e\u003cb\u003eSpecifications\u003c\/b\u003e\u003c\/h3\u003e \t\t\t\t\t\t\t\t\t\t\u003cul\u003e \t\t\t\t\t\t\t\t\t\t\t\u003cli\u003ePart Number: 3RU1146-4KB0\u003c\/li\u003e                                             \u003cli\u003eManufacturer : Siemens\u003c\/li\u003e\n\u003cli\u003eBrand : Siemens\u003c\/li\u003e\n\u003cli\u003eCategory : Motor Control\u003c\/li\u003e\n\u003cli\u003eItem Subcategory : Overload Relay\u003c\/li\u003e\n\u003cli\u003eFamily : Sirius\u003c\/li\u003e\n\u003cli\u003eType : 3RU11\u003c\/li\u003e\n\u003cli\u003eRelay Style : Thermal\u003c\/li\u003e\n\u003cli\u003eAmperage Maximum : 75\u003c\/li\u003e\n\u003cli\u003eAmperage Minimum : 57\u003c\/li\u003e \t\t\t\t\t\t\t\t\t\t\u003c\/ul\u003e                                         \u003cbr\u003e                                         \u003ch3\u003e\u003cb\u003eProduct Data\u003c\/b\u003e\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eUPC : 075455441258\u003c\/li\u003e\n\u003cli\u003eGTIN : 00754554412580\u003c\/li\u003e\n\u003cli\u003eWeight : 1.254 \u003c\/li\u003e\n\u003c\/ul\u003e                                         \u003cbr\u003e                                          ","brand":"Siemens","offers":[{"title":"New","offer_id":42377135554719,"sku":"3RU1146-4KB0-New","price":403.46,"currency_code":"USD","in_stock":true},{"title":"Re-Certified","offer_id":44539733278879,"sku":"3RU1146-4KB0-ReCert","price":342.94,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0500\/2349\/7887\/files\/siemens-motor-controls-new-3ru1146-4kb0-siemens-sirius-thermal-overload-relay-57-75a-class-10-size-s3-53811032293535.jpg?v=1766009047","url":"https:\/\/essentialparts.com\/products\/3ru1146-4kb0-siemens-sirius-thermal-overload-relay-57-75a-class-10-size-s3","provider":"Essential Electric Supply","version":"1.0","type":"link"}