{"product_id":"siemens-3ph-4w-480y-277v-30a-277v-3-phase-fusible-bus-plug","title":"Siemens 3PH\/4W\/480Y\/277V - 30A, 277V, 3-Phase, Fusible Bus Plug","description":"\u003cdiv\u003e\n\u003cp\u003eSiemens 3PH\/4W\/480Y\/277V Fusible Bus Plug delivers robust overcurrent protection and streamlined power distribution for demanding environments. With a 30A rating at 277V, this 3-phase, 4-wire solution is designed to slot into existing busway and panelboard systems, enabling quick fault isolation and minimal downtime inbusy industrial and commercial settings.\u003c\/p\u003e \u003ch3\u003eKey specifications\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Siemens\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eModel:\u003c\/strong\u003e 3PH\/4W\/480Y\/277V\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 Rating:\u003c\/strong\u003e 277V\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePhase \/ Poles:\u003c\/strong\u003e 3-Phase\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Busway and panelboard power distribution systems\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eTypical Use:\u003c\/strong\u003e Industrial plants, commercial facilities, process equipment, and retrofit projects\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eWhat sets this bus plug apart\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eDesigned for hard-to-find needs:\u003c\/strong\u003e A reliable, compatible fusible bus plug for maintenance, repair, and upgrade projects where exact Siemens components are required.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eDirect fit for 480Y\/277V systems:\u003c\/strong\u003e Specifically engineered for 3-phase, 4-wire 277V networks common in modern industrial and commercial infrastructure.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eFast fault isolation:\u003c\/strong\u003e Fusible protection helps contain faults quickly, reducing damage to downstream equipment and limiting downtime.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eModular, retrofit-ready:\u003c\/strong\u003e Ideal for upgrading existing busway and panelboard configurations without extensive overhauls.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eQuality and reliability:\u003c\/strong\u003e Built to meet Siemens’ rigorous standards for demanding environments, delivering consistent performance over time.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eIdeal use cases\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eRetrofit projects in facilities that operate on 277V 3-phase systems, upgrading protection where original components are aging or unavailable.\u003c\/li\u003e \u003cli\u003eMaintenance tasks in industrial plants that require dependable, on-spec bus plugs to keep critical process equipment online.\u003c\/li\u003e \u003cli\u003eRepairs and replacements in commercial facilities where modular power distribution must align with existing Siemens busway infrastructure.\u003c\/li\u003e \u003cli\u003eNew installations that demand precise compatibility with 480Y\/277V configurations and 3-phase, 4-wire protection schemes.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eHow this improves your operation\u003c\/h3\u003e\n\u003cp\u003eWith the Siemens fusible bus plug, you gain predictable protection that aligns with your system design, minimizing downtime during outages and simplifying maintenance schedules. The 277V rating is tailored for environments where line-to-neutral voltage matters for equipment sensitivity, control circuits, and downstream devices. By using a compatible bus plug, you preserve electrical coordination, protect upstream transformers and downstream loads, and extend the life of your power distribution network.\u003c\/p\u003e \u003cp\u003eIf you’re upgrading, repairing, or expanding a Siemens-based power distribution layout, this 3PH\/4W\/480Y\/277V fusible bus plug offers a precise, dependable solution designed to meet the demands of industrial plants, commercial facilities, and process equipment environments. Order it to ensure you have the exact component your system requires for reliable, efficient operation.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Siemens","offers":[{"title":"Default","offer_id":46392144625826,"sku":"3PH\/4W\/480Y\/277V","price":9432.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/master_generic_2c56f35b-fa5c-49f4-9cc8-d6a88c407e93.png?v=1765404043","url":"https:\/\/www.ampstate.com\/products\/siemens-3ph-4w-480y-277v-30a-277v-3-phase-fusible-bus-plug","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}