{"product_id":"c3controls-320b4u63-industrial-overload-relay","title":"C3Controls 320B4U63 Industrial Overload Relay","description":"\u003cdiv\u003e\u003cp\u003e320-B4U63 is a Series 320 bimetallic overload relay from C3 Controls, designed to pair with 300-series contactors to provide thermal motor protection in control panels. It is a three-pole unit with a Class 10 thermal trip and a current adjustment range of 50–63 A, allowing protection to be matched to the motor’s full-load current within that band. The B4U63 suffix identifies the 63 A maximum setting within the 50–63 A range, keeping protection coordinated with compatible starters. This overload relay is intended for use with Series 320 devices and works with contactor styles 300-S50, 300-S65, and 300-S80 to form an integrated motor control solution. Designed for industrial motor protection, it helps safeguard motors from overload conditions while enabling reliable operation in standard 3-phase applications. \u003c\/p\u003e\u003c\/div\u003e","brand":"C3Controls","offers":[{"title":"New","offer_id":51677584720174,"sku":null,"price":145.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/0818\/1038\/files\/Ebay_website_image_b7c1c0d9-d5a5-4523-a56d-7f8988057568.jpg?v=1769565062","url":"https:\/\/plgautomation.com\/products\/c3controls-320b4u63-industrial-overload-relay","provider":"PLG Automation ","version":"1.0","type":"link"}