{"product_id":"eaton-cutler-hammer-8rbt4-400-expulsion-fuse-refill-unit","title":"Eaton Cutler-Hammer 8RBT4-400 Expulsion Fuse Refill Unit","description":"\u003ch3 data-section-id=\"17lc1ru\" data-start=\"0\" data-end=\"16\" class=\"PDq2pG_selectionAnchorContainer\"\u003eDescription:\u003cspan aria-hidden=\"true\" class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\n\u003c\/h3\u003e\n\u003cp data-start=\"18\" data-end=\"590\"\u003eThe Cutler-Hammer 8RBT4-400E Fuse is used in medium-voltage electrical distribution systems to provide overcurrent protection for transformers, switchgear, and feeder circuits. Commonly installed in indoor metal-enclosed switchgear, fused \u003ca href=\"https:\/\/plgautomation.com\/collections\/switches-circuit-protection\"\u003eswitches\u003c\/a\u003e, and distribution equipment utilizing Type RBT expulsion fuse holders for 7.2 kV class power systems. Maintenance electricians and power system technicians use this fuse refill unit for equipment repair, routine maintenance, and replacement of expired or fault-cleared protective fuses. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3 data-section-id=\"5ms9th\" data-start=\"592\" data-end=\"609\"\u003eApplications:\u003c\/h3\u003e\n\u003cp data-start=\"611\" data-end=\"1129\"\u003eThe Cutler-Hammer 8RBT4-400E is a time-lag expulsion fuse refill designed for use with Type RBT fuseholders in medium-voltage distribution systems. It provides dependable overload and short-circuit protection while coordinating with upstream and downstream protective devices. It is widely used in industrial plants, utility substations, power distribution networks, mining operations, and commercial electrical infrastructure requiring reliable medium-voltage circuit protection. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3 data-section-id=\"5hg6bl\" data-start=\"1131\" data-end=\"1160\"\u003eTechnical Specifications:\u003c\/h3\u003e\n\u003cp data-start=\"1162\" data-end=\"1835\"\u003e• Manufacturer: Cutler-Hammer (Eaton)\u003cbr data-start=\"1199\" data-end=\"1202\"\u003e• Part Number: 8RBT4-400E\u003cbr data-start=\"1227\" data-end=\"1230\"\u003e• Product Type: Medium-Voltage Expulsion Fuse Refill Unit\u003cbr data-start=\"1287\" data-end=\"1290\"\u003e• Fuse Series: RBT Time-Lag\u003cbr data-start=\"1317\" data-end=\"1320\"\u003e• Ampere Rating: 400E (720 A nominal E-rating)\u003cbr data-start=\"1366\" data-end=\"1369\"\u003e• Maximum Voltage: 8.3 kV\u003cbr data-start=\"1394\" data-end=\"1397\"\u003e• Nominal System Voltage: 7.2 kV\u003cbr data-start=\"1429\" data-end=\"1432\"\u003e• Fuse Speed: Time-Lag\u003cbr data-start=\"1454\" data-end=\"1457\"\u003e• Compatible Fuseholders: Type 8RBA8 and compatible RBT fuseholders\u003cbr data-start=\"1524\" data-end=\"1527\"\u003e• Mounting: Medium-voltage expulsion fuse assembly\u003cbr data-start=\"1577\" data-end=\"1580\"\u003e• Application: Transformer, feeder, and switchgear protection\u003cbr data-start=\"1641\" data-end=\"1644\"\u003e• Typical Installations: Metal-enclosed switchgear, fused disconnect switches, industrial power distribution equipment, and utility distribution systems. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3 data-section-id=\"1cz0398\" data-start=\"1837\" data-end=\"1861\"\u003eCommon Replacements:\u003c\/h3\u003e\n\u003cp data-start=\"1863\" data-end=\"2014\" data-is-last-node=\"\" data-is-only-node=\"\"\u003e• Cutler-Hammer 8RBT4-300E\u003cbr data-start=\"1889\" data-end=\"1892\"\u003e• Cutler-Hammer 8RBT4-250E\u003cbr data-start=\"1918\" data-end=\"1921\"\u003e• Cutler-Hammer 8RBA4-400E\u003c\/p\u003e","brand":"PLG Automation ","offers":[{"title":"New","offer_id":51727346958638,"sku":null,"price":0.0,"currency_code":"USD","in_stock":true},{"title":"New Surplus No Box","offer_id":51727346991406,"sku":null,"price":0.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/0818\/1038\/files\/Ebay_website_image_18eaca37-6996-4091-a5ac-7cd9ae2515d6.jpg?v=1770582538","url":"https:\/\/plgautomation.com\/products\/eaton-cutler-hammer-8rbt4-400-expulsion-fuse-refill-unit","provider":"PLG Automation ","version":"1.0","type":"link"}