{"product_id":"general-electric-sb421rgi-fusible-bus-plug","title":"General Electric | SB421RGI | Fusible Bus Plug | 30A | 3-Pole | 240V","description":"\u003cdiv\u003e\n\u003cp\u003eThe General Electric SB421RGI Fusible Bus Plug is a purpose-built accessory designed for reliable overcurrent protection in 240V, 3-pole distribution setups. Built for maintenance, retrofit, and replacement projects, this fusible plug helps keep essential systems online while providing safe, fast fault isolation when faults occur.\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 reference:\u003c\/strong\u003e SB421RGI ensures precise compatibility with matching GE bus systems\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003eWhy this fusible bus plug stands out\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003e\u003cstrong precision-fit compatibility:\u003e The SB421RGI designation is the go-to reference for ensuring the plug matches your panel’s bus configuration and ratings.\u003c\/strong\u003e\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePlug-in convenience for faster service:\u003c\/strong\u003e Designed for straightforward field installation, reducing downtime during planned maintenance or emergency replacements.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eIntegrated protection:\u003c\/strong\u003e As a fusible device, it provides deliberate disconnection under overload, helping protect downstream equipment and wiring from damage.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eDurable GE build:\u003c\/strong\u003e Engineered to withstand the demands of industrial and commercial environments where reliability matters most.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eClear suitability for 240V, 3-pole systems:\u003c\/strong\u003e Specifically engineered for configurations that require three live conductors and a unified protective function.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eIdeal applications\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eMaintenance and service of electrical panels in manufacturing floors, data centers, and large facilities.\u003c\/li\u003e \u003cli\u003eRetrofits to add or upgrade fusible protection in legacy distribution setups.\u003c\/li\u003e \u003cli\u003eReplacement when a bus plug has degraded or failed, ensuring continuity with the existing GE hardware ecosystem.\u003c\/li\u003e \u003cli\u003eSpare parts inventory for service fleets that rely on quick, compatible replacements.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eWho should consider the SB421RGI\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eElectrical contractors performing panel upgrades or routine maintenance.\u003c\/li\u003e \u003cli\u003eFacility engineers and plant managers responsible for reliability and uptime.\u003c\/li\u003e \u003cli\u003eService technicians needing a dependable, GE-approved fusible plug for compatible panels.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003ePractical notes for buyers\u003c\/h3\u003e\n\u003cp\u003eBefore ordering, verify fit and ratings on your specific panel model. The part number SB421RGI is your best reference for compatibility, ensuring you don’t run into mismatches during installation. Keep spares on hand for predictable maintenance windows, and store them in a controlled environment to preserve fusible integrity.\u003c\/p\u003e \u003cp\u003eIn short, the SB421RGI Fusible Bus Plug from General Electric delivers dependable protection, straightforward installation, and durable performance for 240V, 3-pole electrical systems—making it a smart, mission-critical choice for maintaining safe, efficient power distribution.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"General Electric","offers":[{"title":"Default Title","offer_id":46425729237154,"sku":"SB421RGI","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-sb421rgi-fusible-bus-plug","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}