{"product_id":"general-electric-sl421rjp-fusible-bus-plug","title":"General Electric | SL421RJP | Fusible Bus Plug | 4-Pole","description":"\u003cdiv\u003e\n\u003ch2\u003eGeneral Electric SL421RJP Fusible Bus Plug — 4-Pole\u003c\/h2\u003e\n\u003cp\u003eEngineered by General Electric, the SL421RJP Fusible Bus Plug is a dedicated 4-pole component designed for maintenance, retrofit, and replacement projects where exact specifications matter. This part serves as the definitive reference for matching GE equipment needs, helping ensure a precise fit and reliable electrical interface.\u003c\/p\u003e \u003cp\u003eKey details you can count on:\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003ePoles:\u003c\/strong\u003e 4-Pole\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePart number:\u003c\/strong\u003e SL421RJP\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eBest compatibility reference:\u003c\/strong\u003e The part number SL421RJP is your primary guide to compatibility\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eIntended use:\u003c\/strong\u003e Maintenance, retrofit, and replacement where matching specs are required\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eWhy this matters for your project:\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003eThe precise 4-pole configuration supports the intended electrical topology without modifications, helping to maintain system integrity during service or upgrades.\u003c\/li\u003e \u003cli\u003eUsing the exact GE part number minimizes guesswork and lowers the risk of incompatible replacements in critical gear.\u003c\/li\u003e \u003cli\u003eFit and ratings must be confirmed before ordering, making this an ideal choice when you need to verify compatibility against your equipment manual or GE documentation.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eIdeal use scenarios and who benefits:\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003eMaintenance technicians working on GE switchgear or bus assemblies that specify a SL421RJP fusible bus plug.\u003c\/li\u003e \u003cli\u003eRetrofit projects that update older gear to current GE configurations while preserving a four-pole protection topology.\u003c\/li\u003e \u003cli\u003eReplacement situations where the original SL421RJP is specified by OEM manuals or service catalogs.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003ePractical guidance for procurement and installation:\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003eAlways verify fit using the part number SL421RJP as the primary compatibility reference.\u003c\/li\u003e \u003cli\u003eCross-check your equipment’s model, required pole count, and ratings against the documentation before purchasing.\u003c\/li\u003e \u003cli\u003eMaintain the SL421RJP in your spare parts inventory to streamline future maintenance and replacements.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"General Electric","offers":[{"title":"Default Title","offer_id":46425710166178,"sku":"SL421RJP","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-sl421rjp-fusible-bus-plug","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}