{"product_id":"general-electric-sb440jk4-bus-plug","title":"General Electric | SB440JK4 | Bus Plug | 400A | 600V","description":"\u003cdiv\u003e\n\u003cp\u003eGeneral Electric SB440JK4 Bus Plug is a precision connectivity component built for demanding electrical environments. Designed for maintenance, retrofit, and replacement projects, this GE part delivers reliable performance where exact specifications are critical. With a 400A rating and a voltage tolerance up to 600V, it provides secure, high-current connections in GE switchgear and power distribution assemblies.\u003c\/p\u003e \u003cul\u003e \u003cli\u003eAmperage: 400A\u003c\/li\u003e \u003cli\u003eVoltage: 600V\u003c\/li\u003e \u003cli\u003ePart number: SB440JK4\u003c\/li\u003e \u003cli\u003eManufacturer: General Electric\u003c\/li\u003e \u003cli\u003eApplications: maintenance, retrofit, and replacement in compatible GE equipment\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eWhy this bus plug matters for your project\u003c\/h3\u003e\n\u003cp\u003eWhen you’re upgrading or restoring critical electrical infrastructure, the SB440JK4 ensures you’re using an exact-fit GE component that aligns with your system’s design. The 400A capability supports substantial load requirements, while the 600V rating covers a wide range of distribution and switchgear configurations. Using the correct part number is your best path to seamless compatibility and reduced downtime.\u003c\/p\u003e \u003ch3\u003eIdeal use cases\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eRoutine maintenance: replace worn or damaged bus plug elements to restore secure connections and reliable power delivery.\u003c\/li\u003e \u003cli\u003eRetrofit projects: upgrade legacy gear to meet higher current or voltage requirements without changing the surrounding hardware.\u003c\/li\u003e \u003cli\u003eReplacement scenarios: when a GE-approved part is needed to maintain system integrity and warranty terms.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eFit, compatibility, and installation considerations\u003c\/h3\u003e\n\u003cp\u003eBefore ordering, confirm that SB440JK4 matches your equipment’s requirements. The part number is the best reference for compatibility with GE assemblies. If you’re verifying fit, check your system’s amperage and voltage ratings, along with the connector geometry and mounting arrangement to ensure a precise match.\u003c\/p\u003e \u003ch3\u003ePractical tips for best results\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eWork with a qualified electrical technician to verify voltage class and connection specifications related to your GE gear.\u003c\/li\u003e \u003cli\u003eKeep spares on hand for critical equipment where downtime has a direct impact on operations.\u003c\/li\u003e \u003cli\u003eFollow proper safety protocols during removal and installation to prevent arcing or unintended energization.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"General Electric","offers":[{"title":"Default Title","offer_id":46425869320354,"sku":"SB440JK4","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-sb440jk4-bus-plug","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}