{"product_id":"general-electric-de421r-fusible-bus-plug","title":"General Electric | DE421R | Fusible Bus Plug | 30A | 4-Pole | 240V","description":"\u003cdiv\u003e\n\u003cp\u003eGeneral Electric's DE421R Fusible Bus Plug is a purpose-built solution for maintenance, retrofit, and replacement needs in industrial electrical distributions. With a 30A rating, 4-Pole configuration, and 240V capability, this plug is designed to integrate precisely where matching specs are required, delivering dependable protection and streamlined serviceability.\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 4-Pole\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVoltage:\u003c\/strong\u003e 240V\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Fusible bus plug\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eBrand\/Compatibility:\u003c\/strong\u003e General Electric, DE421R part number as the best reference for compatibility\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eWhy a fusible bus plug matters in your panel or bus duct system: it provides protective fast-acting fusing within the bus assembly, helping to interrupt fault currents and shield downstream equipment from damage. The four-pole design supports multiple circuits or phases in a single plug, simplifying installation and reducing parts variety during maintenance or upgrades.\u003c\/p\u003e \u003cp\u003eIdeal use scenarios include:\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003eMaintenance on GE switchgear or bus duct systems that require a DE421R-compatible plug\u003c\/li\u003e \u003cli\u003eRetrofit projects where existing infrastructure calls for a 30A, 4-Pole, 240V fusible plug\u003c\/li\u003e \u003cli\u003eReplacement when a prior unit reaches end-of-life or exhibits normal wear in critical distribution paths\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eImportant compatibility notes: always confirm fit and ratings before ordering. The DE421R part number is the most reliable reference to ensure a precise match with your equipment’s bus plug connections and protective requirements.\u003c\/p\u003e \u003cp\u003eWho benefits most from the DE421R:\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003eElectrical maintenance technicians working on industrial facilities\u003c\/li\u003e \u003cli\u003eEngineers and project teams performing retrofits or capacity upgrades\u003c\/li\u003e \u003cli\u003eProcurement professionals sourcing authentic GE spares to maintain system reliability\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003ePractical considerations and tips for best results: verify that your bus assembly supports a 4-Pole, 240V fusible plug, and align the 30A rating with the protective needs of the circuit. Store and handle the plug according to standard electrical safety practices, and use it as part of an overall coordinated protection strategy to minimize downtime during service events.\u003c\/p\u003e \u003cp\u003eEquip your distribution hardware with the GE DE421R Fusible Bus Plug to maintain reliability, simplify maintenance workflows, and ensure a precise, compatible fit for your 30A, 4-Pole, 240V applications.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"General Electric","offers":[{"title":"Default Title","offer_id":46425778028706,"sku":"DE421R","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-de421r-fusible-bus-plug","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}