{"product_id":"square-d-pq4203-30a-240v-3-pole-fusible-bus-plug","title":"Square D PQ4203 - 30A, 240V, 3-Pole, Fusible Bus Plug","description":"\u003cdiv\u003e\n\u003cp\u003eThe Square D PQ4203 Fusible Bus Plug is engineered to deliver safe, reliable power distribution in demanding industrial and commercial settings. This 3‑pole, 30A, 240V bus plug integrates fuse protection directly into the distribution path, providing a compact, field-ready solution for critical electrical infrastructure.\u003c\/p\u003e \u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Square D\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eModel:\u003c\/strong\u003e PQ4203\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Fusible Bus Plug\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eAmperage:\u003c\/strong\u003e 30A\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVoltage:\u003c\/strong\u003e 240V\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePhase \/ Poles:\u003c\/strong\u003e 3‑Pole\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Busway and panelboard power distribution systems\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eTypical uses include industrial plants, commercial facilities, process equipment, and retrofit projects. If you’re stocking spare bus plugs for maintenance, repair, or upgrades, the PQ4203 is designed to meet those needs when compatible, hard-to-find busplugs are required.\u003c\/p\u003e \u003ch3\u003eWhy this fusible bus plug stands out\u003c\/h3\u003e \u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eIntegrated protection and distribution:\u003c\/strong\u003e The fusible design provides built‑in overcurrent protection within the distribution path, simplifying assemblies where quick, reliable safeguarding is essential.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003e3‑pole, 240V performance:\u003c\/strong\u003e Ready to support standard three‑phase loads common in industrial and commercial systems.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eCompatibility with Square D systems:\u003c\/strong\u003e Specifically designed for busway and panelboard configurations, ensuring a clean fit and dependable operation within existing layouts.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eHard-to-find practicality:\u003c\/strong\u003e Classified as a suitable choice for maintenance, repair, and upgrade projects where exact busplug compatibility matters, reducing downtime during critical service windows.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003ePractical use cases and scenarios\u003c\/h3\u003e \u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eMaintenance and spare parts planning:\u003c\/strong\u003e Keep a few PQ4203 units on hand to minimize downtime when fusible bus plugs need replacement in active systems.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eRetrofits and upgrades:\u003c\/strong\u003e Upgrade or reconfigure power distribution in aging facilities without changing the entire bus assembly—just replace with a compatible fusible bus plug.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eIndustrial process equipment:\u003c\/strong\u003e Support reliable, fused protection for critical equipment fed through busway systems.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eCommercial facilities:\u003c\/strong\u003e Use in large electrical rooms or distribution panels that rely on modular, easily serviceable protection plugs.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eInstallation and compatibility tips\u003c\/h3\u003e \u003cul\u003e \u003cli\u003eVerify that your system requires a 30A, 240V, 3‑pole fusible bus plug and that PQ4203 is listed for your specific busway or panelboard configuration.\u003c\/li\u003e \u003cli\u003eBefore service, de‑energize equipment, lockout\/tagout the circuit, and follow all site safety procedures.\u003c\/li\u003e \u003cli\u003eEnsure fuse type and ratings align with your protection scheme and that replacement fuses meet the required standards for your installation.\u003c\/li\u003e \u003cli\u003ePlan for routine inspection to check for secure connections and signs of wear on fusible interfaces, enhancing long‑term reliability.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eThis listing is ideal for maintenance, repair, and upgrade projects where compatible, hard-to-find busplugs are required. With Square D’s trusted build quality and a configuration that matches 3‑pole, 240V distribution needs, the PQ4203 supports robust, dependable power delivery in challenging environments.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Square D","offers":[{"title":"Default","offer_id":46392220680354,"sku":"PQ4203","price":1326.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/master_generic_a6d7fce6-3a47-42d9-a87f-8c08268a2ced.png?v=1765406284","url":"https:\/\/www.ampstate.com\/products\/square-d-pq4203-30a-240v-3-pole-fusible-bus-plug","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}