{"product_id":"siemens-rv421-fusible-bus-plug","title":"Siemens | RV421 | Fusible Bus Plug | 30A | 3-Pole | 240V","description":"\u003cdiv\u003e\n\u003cp\u003eThe Siemens RV421 Fusible Bus Plug is a precise, dependable solution for protecting and routing power in your electrical distribution setup. Engineered for maintenance, retrofit, and replacement projects, this 30A, 3-Pole, 240V bus plug ensures you can restore or upgrade your panel with confidence when exact specifications are required.\u003c\/p\u003e \u003ch2\u003eWhy the RV421 Stands Out\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eExact 30A protection\u003c\/strong\u003e tailored for circuits that demand reliable, consistent current interruption.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eThree-pole design\u003c\/strong\u003e supports multi‑phase configurations and coordinated protection across lines.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003e250V-class operation\u003c\/strong\u003e compatible with standard 240V systems commonly used in facilities and industrial environments.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePart number RV421\u003c\/strong\u003e is the best reference for compatibility—use this to verify fit in your Siemens panel before ordering.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eMaintenance, retrofit, and replacement ready\u003c\/strong\u003e built to facilitate quick service and minimal downtime when upgrading or servicing existing equipment.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eHow It Solves Your Maintenance and Retrofit Needs\u003c\/h2\u003e\n\u003cp\u003eWhen a Siemens panel requires a fusible bus plug with matching specifications, the RV421 delivers a straightforward path to restore protection and performance. Its 30A rating and 3-pole configuration ensure you can align with your panel’s protection strategy without improvising alternative components. By anchoring your replacement decisions to the RV421 part number, you minimize compatibility risk and streamline procurement for service teams and panel builders alike.\u003c\/p\u003e \u003ch2\u003eUse Cases and Ideal Applications\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eMaintenance projects\u003c\/strong\u003e: swap in a known, spec-matching fusible bus plug to maintain circuit protection integrity during routine service.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eRetrofits and upgrades\u003c\/strong\u003e: replace older or incompatible bus plugs with a Siemens-approved component to align with current safety and performance expectations.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eReplacement scenarios\u003c\/strong\u003e: when a failure or wear requires a direct, spec-consistent substitute to keep systems online with minimal disruption.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePanel assembly and rebuilds\u003c\/strong\u003e: integrate the RV421 into new or rebuilt Siemens panels that require a 30A, 3-Pole, 240V protective plug.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eSpecification Snapshot\u003c\/h2\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 RV421\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eNotes:\u003c\/strong\u003e Confirm fit and ratings before ordering. The part number is the best reference for compatibility.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eWho Should Consider This\u003c\/h2\u003e\n\u003cp\u003eElectrical contractors, facilities managers, panel builders, and maintenance teams handling Siemens panels that require a precise fusible bus plug with 30A, 3-Pole, 240V specifications will find the RV421 to be a reliable, standards-aligned choice. It’s particularly valuable for projects where staying aligned with Siemens’ design language and compatibility references reduces risk and accelerates procurement.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Siemens","offers":[{"title":"Default Title","offer_id":46425744212130,"sku":"RV421","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-rv421-fusible-bus-plug","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}