{"product_id":"general-electric-ac421r-fusible-bus-plug","title":"General Electric | AC421R | Fusible Bus Plug | 4-Pole","description":"\u003cdiv\u003e\n\u003cp\u003eMeet the GE AC421R Fusible Bus Plug — a precise, 4‑Pole solution crafted for maintenance, retrofit, and replacement in compatible GE switchgear. Identified by the part number AC421R, this fusible bus plug gives technicians a clear, reliable reference for fit and performance, ensuring you stay on spec from procurement to installation.\u003c\/p\u003e \u003ch2\u003eWhy the AC421R stands out\u003c\/h2\u003e \u003cp\u003eDesigned to plug into GE bus assemblies that require a four‑pole fusible path, this plug delivers the essential conduction and protective characteristics in a compact, plug‑in format. The 4‑Pole configuration supports proper phase alignment and current handling in multi‑pole switchgear setups, helping you preserve original electrical protection schemes.\u003c\/p\u003e \u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eExact compatibility with GE equipment\u003c\/strong\u003e — rely on the part number AC421R as the definitive reference for matching hardware.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eMaintenance-friendly\u003c\/strong\u003e — swap‑in replacements during service windows to minimize downtime.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eRetrofit-ready\u003c\/strong\u003e — add or restore 4‑pole protection in existing switchgear without a full redesign.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eReplacement-ready\u003c\/strong\u003e — ideal when renewing fusible bus plugs that wear over time, keeping your protection intact.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eUse cases and practical applications\u003c\/h3\u003e \u003cp\u003e- Routine maintenance on GE switchgear that utilizes fusible bus plugs in a 4‑pole configuration.\u003c\/p\u003e\n\u003cp\u003e- Retrofit projects to restore or upgrade to a 4‑pole fusible path without changing the overall footprint.\u003c\/p\u003e\n\u003cp\u003e- Replacement scenarios following fusible element wear or failure, ensuring continued safety and reliability with GE‑spec parts.\u003c\/p\u003e \u003ch3\u003eWhat to check before ordering\u003c\/h3\u003e \u003cul\u003e \u003cli\u003eConfirm fit and ratings before ordering — AC421R is the most reliable compatibility reference for your gear.\u003c\/li\u003e \u003cli\u003eVerify the four‑pole configuration matches your bus assembly requirements.\u003c\/li\u003e \u003cli\u003eEnsure your equipment model and documentation align with the GE part number AC421R.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eInstallation and maintenance tips\u003c\/h3\u003e \u003cp\u003ePower down equipment following your site’s lockout\/tagout procedures. Align the AC421R fusible bus plug with the bus assembly footprint, insert fully, and secure per your GE equipment’s assembly instructions. After installation, perform a functional check and verify continuity across all four poles as part of routine maintenance audits.\u003c\/p\u003e \u003cp\u003eDesigned for professionals who value precise GE compatibility, dependable performance, and straightforward procurement, the AC421R is the pragmatic choice for fleets and facilities that prioritize uptime and adherence to original protection standards. If you’re stocking for service readiness or planning a retrofit that preserves the intended protection scheme, this 4‑pole fusible bus plug is the right fit.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"General Electric","offers":[{"title":"Default Title","offer_id":46425789628578,"sku":"AC421R","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-ac421r-fusible-bus-plug","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}