{"product_id":"general-electric-sb421i-fusible-bus-plug","title":"General Electric | SB421I | Fusible Bus Plug | 30A | 240V","description":"\u003cdiv\u003e\n\u003cp\u003eThe General Electric SB421I Fusible Bus Plug is a purpose-built protective component designed for maintenance, retrofit, and replacement in compatible electrical distribution systems. With a clear spec alignment to your gear, this 30A, 240V bus plug delivers reliable overcurrent protection while fitting seamlessly into GE assemblies. Use it when you need a precise, factory-authorized part that preserves system integrity and minimizes downtime.\u003c\/p\u003e \u003ch3\u003eKey specifications\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eAmperage: 30A\u003c\/li\u003e \u003cli\u003eVoltage rating: 240V\u003c\/li\u003e \u003cli\u003ePart number: SB421I\u003c\/li\u003e \u003cli\u003eType: Fusible bus plug\u003c\/li\u003e \u003cli\u003eManufacturer: General Electric\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eWhat this fusible bus plug does for you\u003c\/h3\u003e\n\u003cp\u003eDesigned to insert into compatible GE equipment, the SB421I provides a reliable fusible path that protects downstream circuits from overcurrent events. It’s an ideal solution when you’re performing routine maintenance, upgrading to meet new protection requirements, or replacing a failed bus plug. Its 240V rating makes it suitable for standard distribution settings, while the 30A capacity matches common protection schemes in many GE installations.\u003c\/p\u003e \u003ch3\u003eIdeal use scenarios\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eMaintenance: Replace worn or damaged bus plugs to restore proper protection and prevent unplanned outages.\u003c\/li\u003e \u003cli\u003eRetrofit: Update old equipment with a modern, OEM-compliant plug to meet current safety standards and protection needs.\u003c\/li\u003e \u003cli\u003eReplacement stock: Keep on hand for quick field swaps in GE-based panel or switchgear setups, reducing downtime during service windows.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eCompatibility and ordering guidance\u003c\/h3\u003e\n\u003cp\u003eTo ensure a correct fit, match your equipment to the SB421I part number. The part number is the best reference for compatibility—verify that your GE assembly is designed to accommodate a fusible bus plug of this type, amperage, and voltage. Before ordering, confirm the fit and ratings against your specific panel or switchgear model to avoid mismatches and service interruptions.\u003c\/p\u003e \u003ch3\u003eWhy choose the GE SB421I\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eOEM compatibility: As a General Electric part, it aligns precisely with GE distribution equipment, reducing compatibility concerns compared with generic substitutes.\u003c\/li\u003e \u003cli\u003eClear protection path: Fusible bus plugs are designed to provide a controlled, protective interruption that safeguards downstream circuits during faults.\u003c\/li\u003e \u003cli\u003eSupport for reliable maintenance: Having the exact SB421I on hand helps streamline downtime when servicing GE installations.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003ePractical tips for installation and handling\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eAlways confirm the exact part number (SB421I) and the equipment’s required amperage and voltage before ordering or installation.\u003c\/li\u003e \u003cli\u003eEnsure the system is de-energized and follow lockout\/tagout procedures prior to handling or replacing a fusible bus plug.\u003c\/li\u003e \u003cli\u003eHandle components with appropriate PPE and store spares in a clean, dry environment to prevent corrosion or damage.\u003c\/li\u003e \u003cli\u003eConsult the equipment manual or GE service documentation for any device-specific installation instructions or torque specifications.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"General Electric","offers":[{"title":"Default Title","offer_id":46425729597602,"sku":"SB421I","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-sb421i-fusible-bus-plug","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}