{"product_id":"cooper-bussmann-lpn-rk-500sp-time-delay-fuses","title":"Cooper Bussmann Lpn-Rk-500Sp Time Delay Fuses","description":"\u003cdiv\u003e\u003cp\u003eThe Bussmann LPN-RK-500SP is a non-indicating, time-delay Class RK1 fuse rated at 500 A and 250 V AC, part of the LPN-RK SP series. It is a dual-element, current-limiting device designed for feeder and branch circuits in large distribution switchboards, power panelboards, motor control centers, transformers, and other general-purpose loads. It carries an interrupting rating of 300 kA at 250 VAC and 100 kA at 125 VDC, enabling protection for high-energy circuits while tolerating brief inrush currents. This 500-amp variant is suitable where substantial inrush events occur and a reliable, slow-blow protection response is required; the SP suffix denotes the non-indicating version of the RK1 family, typically used with compatible Bussmann holders and switchgear in industrial electrical installations.\u003c\/p\u003e\u003c\/div\u003e","brand":"Bussmann","offers":[{"title":"New","offer_id":51677503324462,"sku":null,"price":68.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/0818\/1038\/files\/Ebay_website_image_6c172503-ab7b-4735-afa7-70af6c5ef22b.jpg?v=1769563894","url":"https:\/\/plgautomation.com\/products\/cooper-bussmann-lpn-rk-500sp-time-delay-fuses","provider":"PLG Automation ","version":"1.0","type":"link"}