{"product_id":"siemens-uv321-fusible-bus-plug","title":"Siemens | UV321 | Fusible Bus Plug | 30A | 3-Pole | 240V","description":"\u003cdiv\u003e\n\u003cp\u003eSiemens UV321 Fusible Bus Plug delivers reliable, plug-in protection for three-phase electrical distributions. With a 30A rating, 3 poles, and a 240V operating envelope, this bus plug is tailored for maintenance, retrofit, and replacement tasks where exact specifications matter. Identified by part number UV321, it’s the clearest reference for compatibility and a quick way to ensure you’re selecting the correct component the first time.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eKey specifications\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eAmperage:\u003c\/strong\u003e 30A\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePoles:\u003c\/strong\u003e 3-Pole\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVoltage:\u003c\/strong\u003e 240V\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePart number:\u003c\/strong\u003e UV321\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003eWhat makes this fusible bus plug stand out\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003eDesigned to align precisely with Siemens panels and systems that require the UV321 reference, reducing downtime caused by fit issues.\u003c\/li\u003e \u003cli\u003eFusible protection integrated in a plug-style format, enabling quick isolation for safe maintenance of circuits.\u003c\/li\u003e \u003cli\u003eThree-pole configuration supports three-phase layouts, preserving original bus-bar topology during retrofit or replacement.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003eIdeal use scenarios\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003eMaintenance: swap in a known-good UV321 to restore service when a fuse element has degraded or failed.\u003c\/li\u003e \u003cli\u003eRetrofit: upgrade or adapt a panel to a 30A, 3-Pole, 240V protection scheme without altering the bus architecture.\u003c\/li\u003e \u003cli\u003eReplacement: replace a worn or mismatched bus plug with the exact UV321 reference to maintain system integrity.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003eCompatibility and ordering guidance\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eBefore purchasing, confirm fit and ratings match your panel requirements. The part number UV321 is the best reference for compatibility, helping you avoid mismatches in critical protection components.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003ePractical tips for installation and handling\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003eInspect panel labeling and service documentation to verify that a UV321 30A, 3-Pole, 240V bus plug is the correct choice for your distribution circuit.\u003c\/li\u003e \u003cli\u003eHandle with appropriate PPE and ensure the main power is isolated before performing any retrofits or replacements.\u003c\/li\u003e \u003cli\u003eKeep a spare UV321 on hand as part of your preventive maintenance kit to minimize downtime during routine service windows.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"Siemens","offers":[{"title":"Default Title","offer_id":46425688703138,"sku":"UV321","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\/siemens-uv321-fusible-bus-plug","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}