{"product_id":"general-electric-sb421np-fusible-bus-plug","title":"General Electric | SB421NP | Fusible Bus Plug | 30A | 3-Pole | 240V","description":"\u003cdiv\u003e\n\u003cp\u003eIntroducing the General Electric SB421NP Fusible Bus Plug — a purpose-built 30A, 3-Pole, 240V module designed for maintenance, retrofit, and replacement in compatible electrical panels. This fusible bus plug helps you restore proper circuit protection quickly without overhauling an entire bus assembly.\u003c\/p\u003e \u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eAmperage:\u003c\/strong\u003e 30A\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePoles:\u003c\/strong\u003e 3-Pole\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVoltage:\u003c\/strong\u003e 240V\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePart number:\u003c\/strong\u003e SB421NP\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eWhy this matters: In panel maintenance or upgrades, matching the exact fusible plug ensures you retain proper protective coordination and fault interruption. The SB421NP is designed to slide into standard bus plug slots within compatible GE panels, delivering fast replacement without reconfiguring the entire bus scheme. Use this part when you need a reliable, ready-to-fit fusible connection that adheres to common electrical ratings.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eKey benefits and use cases:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003eMaintenance and retrofit projects where the existing fusible plug has reached end-of-life or is no longer available.\u003c\/li\u003e \u003cli\u003eReplacement in systems sized for 30A, 240V operation with 3-pole bus configurations.\u003c\/li\u003e \u003cli\u003eIdeal for service technicians performing on GE-based panel systems that require a precise, compatible fusible bus plug without custom fabrication.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003eNotable considerations:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003eAlways confirm fit and ratings before ordering; rely on the SB421NP part number as your best reference for compatibility.\u003c\/li\u003e \u003cli\u003ePlan for proper de-energization and safety procedures when servicing panels containing fusible components.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eChoosing the right fusible bus plug can affect trip characteristics and protection coordination. The SB421NP is the targeted, exact-match choice for GE panel configurations that specify a 30A, 3-Pole, 240V fusible bus plug module. If your project requires precise compatibility and quick, reliable replacement, this part helps you minimize downtime and maintain electrical protection standards.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"General Electric","offers":[{"title":"Default Title","offer_id":46425729335458,"sku":"SB421NP","price":310.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/master_generic_a085eff1-75dd-47ee-b131-4c8df8f0489b.png?v=1765492976","url":"https:\/\/www.ampstate.com\/products\/general-electric-sb421np-fusible-bus-plug","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}