{"product_id":"square-d-pq4620-fusible-bus-plug","title":"Square D | PQ4620 | Fusible Bus Plug | 200A | 4-Pole | 600V","description":"\u003cdiv\u003e\n\u003cp\u003eSquare D PQ4620 Fusible Bus Plug is a purpose-built protection module designed for maintenance, retrofit, and replacement tasks in compatible Square D distribution gear. With a 200A rating and 4 poles at 600V, this fusible bus plug delivers reliable, plug-in protection where your system needs it most.\u003c\/p\u003e \u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eAmperage:\u003c\/strong\u003e 200 A\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePoles:\u003c\/strong\u003e 4-Pole\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVoltage rating:\u003c\/strong\u003e 600 V\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePart number:\u003c\/strong\u003e PQ4620\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003eWhy this fusible bus plug matters\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eIn electrical distribution, reliable protection and minimal downtime are essential. The PQ4620 is designed to seamlessly integrate with compatible Square D equipment, enabling quick deployment during routine maintenance, system upgrades, or urgent replacements. The four-pole configuration supports multi-line protection within a single plug-in device, streamlining wiring and reducing the risk of mismatched components.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eKey use cases\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003eMaintenance: replace aging or failed fusible bus components without reworking the entire panel.\u003c\/li\u003e \u003cli\u003eRetrofit: add fusible protection to existing bus sections to improve safety and compliance.\u003c\/li\u003e \u003cli\u003eReplacement: convenient substitute for worn or obsolete bus plugs with matching ratings.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003eCompatibility and installation notes\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eBefore ordering, confirm fit and ratings with your equipment's bus assembly. The PQ4620 part number is the most reliable reference for compatibility with Square D switchgear and bus configurations. This is a plug-in solution, intended for installation by qualified personnel following all applicable safety procedures and lockout\/tagout practices.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003ePractical tips\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003eKeep the original part number when requesting replacements to ensure exact match.\u003c\/li\u003e \u003cli\u003eVerify that your system operates within the 600V rating and 200A capacity before installation.\u003c\/li\u003e \u003cli\u003eStore a spare PQ4620 in service-ready condition to minimize downtime during maintenance windows.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"Square D","offers":[{"title":"Default Title","offer_id":46425746571426,"sku":"PQ4620","price":6110.0,"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\/square-d-pq4620-fusible-bus-plug","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}