{"product_id":"s-c-electric-company-122100-r4-sm-4-refill-fuse-unit","title":"S\u0026C Electric Company 122100-R4 SM-4 Refill Fuse Unit","description":"\u003cdiv\u003eThe S\u0026amp;C Electric Company 122100-R4 SM-4 Refill Fuse Unit is a coordinating-speed refill element designed for SM-4 fuse holders in 14.4 kV distribution systems. It carries a 60E ampere rating and serves as a ready-to-install replacement fuse link, enabling rapid re-energization after a fault without replacing the entire assembly. This unit is specified for a nominal 14.4 kV with a maximum 17.0 kV in listed mountings and is suitable for use in SM-4 holders, with compatibility also noted for SME-4Z holders as listed in S\u0026amp;C’s refill-unit specifications. By integrating with the SM-4 protection scheme, the 122100R4 supports protective coordination and reliable interruption when needed, making it a practical solution for medium-voltage feeders and switchgear where quick restoration of service after a fault is desired. In S\u0026amp;C’s documentation, refill units in the SM-4 family are described as replaceable fuse elements for use in SM-4 and related holders, underscoring their role in maintaining continuity in 14.4 kV networks.\u003c\/div\u003e","brand":"S\u0026C","offers":[{"title":"Used Surplus - Excellent Condition","offer_id":46284106203370,"sku":null,"price":0.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0716\/8039\/3450\/files\/GTG-STOCK-022.png?v=1788727428","url":"https:\/\/gtghardware.com\/products\/s-c-electric-company-122100-r4-sm-4-refill-fuse-unit","provider":"GTG Hardware","version":"1.0","type":"link"}