{"product_id":"bussmann-frn-r-400-fusetron-time-delay-current-limiting-fuse","title":"Bussmann FRN-R-400 Fusetron Time Delay Current Limiting Fuse","description":"\u003cdiv\u003e\u003cp\u003eThe Bussmann Fusetron FRN-R-400 is a dual-element, time-delay current-limiting fuse with a cartridge body, designed for Class RK5 protection in high-current distribution settings and motor circuits, rated at 400 A. It operates on 250 VAC or 250 VDC and delivers a 200 kA interrupt rating at AC and 20 kA at DC, providing fast fault clearance while tolerating brief startup surges common with inductive loads. The FRN-R-400 is approximately 8.63 inches long and belongs to Bussmann’s RK5 family of fuses used for main feeders and other demanding applications requiring reliable time-delay protection. Typical uses include protection of power distribution feeds and motor-driven equipment where coordination with upstream protections is essential.\u003c\/p\u003e\u003c\/div\u003e","brand":"Bussmann","offers":[{"title":"New","offer_id":51677541728558,"sku":null,"price":71.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/0818\/1038\/files\/Ebay_website_image_c852d811-13fd-4206-9572-c57de9c8d0f9.jpg?v=1769564372","url":"https:\/\/plgautomation.com\/products\/bussmann-frn-r-400-fusetron-time-delay-current-limiting-fuse","provider":"PLG Automation ","version":"1.0","type":"link"}