{"product_id":"s-c-electric-company-123040r4-fuse-refill-sm-4","title":"S\u0026C Electric Company 123040R4 Fuse Refill SM-4","description":"\u003cdiv\u003e\u003cp\u003eThe S\u0026amp;C Electric Company 123040R4 SM-4 Fuse Refill is an expendable refill unit designed for use in SM-4 and SML-4 holders. Each package contains 25 refills (25EA) for convenient stock replenishment after a fuse operation. This refill is rated 25 kV nominal with a 27 kV maximum, and carries a 25E current rating, aligning with the SM-4 protection scheme used in metal-enclosed and outdoor distribution switchgear. In SM-4 families, the 123040R4 is part of a cross-compatible lineup that includes 253040R4, 124040R4, and 254040R4, allowing substitution across related assemblies while maintaining the same voltage class. Refill units are intended to be replaced following a fuse operation, helping minimize downtime and ensure continued protective coordination in substations. S\u0026amp;C SM fuses and refill units are commonly used to protect transformers, capacitor banks, and cables in outdoor distribution environments, making the 123040R4 a practical inventory choice for service crews maintaining SM-4-based switchgear.\u003c\/p\u003e\u003c\/div\u003e","brand":"S\u0026C","offers":[{"title":"New","offer_id":46284106268906,"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-123040r4-fuse-refill-sm-4","provider":"GTG Hardware","version":"1.0","type":"link"}