{"product_id":"general-electric-sl421ni-fusible-bus-plug","title":"General Electric | SL421NI | Fusible Bus Plug | 30A | 240V","description":"\u003cdiv\u003e\n\u003cp\u003ePower reliability in your electrical panel with the General Electric SL421NI Fusible Bus Plug. Engineered for 30A at 240V, this part is a trusted solution for maintenance, retrofit, and replacement projects where exact specifications matter. The SL421NI designation isn't just a model number—it’s your assurance of compatibility in GE-based systems and panels that use fusible bus plugs to protect circuits.\u003c\/p\u003e \u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eAmperage\u003c\/strong\u003e: 30A\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVoltage\u003c\/strong\u003e: 240V\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePart number\u003c\/strong\u003e: SL421NI\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eType\u003c\/strong\u003e: Fusible bus plug for panel protection\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eBest reference for compatibility\u003c\/strong\u003e: The part number SL421NI\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eWhy this fusible bus plug stands out\u003c\/p\u003e \u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eExact-fit compatibility\u003c\/strong\u003e — Designed to match GE panels that use fusible bus plugs, reducing guesswork during maintenance or retrofit.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eClear, field-ready protection\u003c\/strong\u003e — Provides reliable overcurrent protection for branch circuits by incorporating a fusible element that opens when overload occurs, helping safeguard downstream equipment.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eStreamlined replacement\u003c\/strong\u003e — A straightforward, plug-in solution that minimizes downtime when a bus plug needs replacement in service panels.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eDurable construction\u003c\/strong\u003e — Built to endure the demands of routine servicing in commercial and industrial environments, ensuring stable performance over time.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eIdeal use scenarios\u003c\/p\u003e \u003cul\u003e \u003cli\u003eMaintenance on existing GE-based electrical panels that rely on fusible bus plugs for circuit protection.\u003c\/li\u003e \u003cli\u003eRetrofit projects where adding or upgrading protection requires an exact 30A, 240V fusible bus plug to maintain system integrity.\u003c\/li\u003e \u003cli\u003eReplacement of worn or failed bus plugs to restore proper protection without modifying surrounding hardware.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eImportant installation and compatibility notes\u003c\/p\u003e \u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eFit and ratings confirmation\u003c\/strong\u003e — Before purchasing, verify the part number and the panel’s compatibility for a seamless fit and intended protection level. The SL421NI is the best compatibility reference for this purpose.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eProfessional installation recommended\u003c\/strong\u003e — For safety, efficiency, and to preserve protective ratings, have a qualified electrician perform installation and confirm system integrity after replacement.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eDocumentation alignment\u003c\/strong\u003e — Keep the panel’s service manual on hand to cross-check mounting arrangements and any panel-specific requirements when using fusible bus plugs.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003ePractical guidance to maximize value\u003c\/p\u003e \u003cul\u003e \u003cli\u003eStore spare SL421NI units in their original packaging to protect the fusible elements and ensure dependable performance when you need them.\u003c\/li\u003e \u003cli\u003ePair with routine panel maintenance schedules to minimize downtime and ensure consistent protection across the system.\u003c\/li\u003e \u003cli\u003eIf your application involves critical loads or non-standard configurations, consult your panel documentation to confirm that a 30A, 240V fusible bus plug aligns with the intended protection scheme.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eEquipped for reliability, the General Electric SL421NI Fusible Bus Plug delivers precise, dependable protection where it’s needed most. When you need a replacement or retrofit component that you can trust to fit and perform as specified, this part is engineered to meet those exacting requirements.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"General Electric","offers":[{"title":"Default Title","offer_id":46425710887074,"sku":"SL421NI","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-sl421ni-fusible-bus-plug","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}