{"product_id":"westinghouse-505c220g22-circuit-breaker","title":"Westinghouse | 505C220G22 | Circuit Breaker | 300A | 3-Pole | 600V | Bolt-On","description":"\u003cdiv\u003e\n\u003cp\u003eWhen you’re maintaining or upgrading a high-demand electrical system, you need a circuit breaker that fits precisely and performs reliably. The Westinghouse 505C220G22 300A 3-Pole 600V Bolt-On Circuit Breaker is engineered for demanding panels, delivering solid overcurrent protection and dependable operation in retrofit, maintenance, or replacement projects.\u003c\/p\u003e \u003ch2\u003eWhat makes this circuit breaker stand out\u003c\/h2\u003e\n\u003cp\u003eDesigned for exact compatibility with legacy Westinghouse installations, this unit brings the assurance of a trusted brand and a bolt-on mounting style that provides a secure, vibration-resistant connection. It’s built to support large-load circuits and tough industrial environments where reliable interruption and clear electrical protection are non-negotiable.\u003c\/p\u003e \u003ch2\u003eKey specifications\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eAmperage:\u003c\/strong\u003e 300A\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePoles:\u003c\/strong\u003e 3-Pole\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVoltage rating:\u003c\/strong\u003e 600V\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eMounting style:\u003c\/strong\u003e Bolt-On\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePart reference:\u003c\/strong\u003e 505C220G22\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eIdeal use cases\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003eRetrofits and replacements in commercial or industrial panels that require a 3‑pole, 600V, 300A bolt-on breaker\u003c\/li\u003e \u003cli\u003eMaintenance upgrades where matching the exact part number ensures compatibility with existing bus bars and mounting footprints\u003c\/li\u003e \u003cli\u003ePanel upgrades for large-motor or high-load equipment where secure, vibration-resistant protection is essential\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eCompatibility and installation notes\u003c\/h2\u003e\n\u003cp\u003eBefore ordering, confirm fit and ratings against your panel requirements. The part number 505C220G22 is the best reference for compatibility, ensuring the breaker matches your existing bus configuration and protection needs. Bolt-on breakers like this one typically require appropriate mounting hardware and panel design that accommodates bolt-on connections, delivering a rigid mechanical hold and consistent electrical contact.\u003c\/p\u003e \u003ch2\u003ePractical tips and guidance\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003eKeep a spare 505C220G22 on hand for planned maintenance or stocking replacements in high-demand facilities.\u003c\/li\u003e \u003cli\u003eDocument the exact part number within your maintenance logs to simplify future replacements and panel audits.\u003c\/li\u003e \u003cli\u003eWhen performing upgrades, verify that the panel’s enclosure, bus bar configuration, and conductor sizing align with a 300A, 3‑pole, 600V bolt-on device.\u003c\/li\u003e \u003cli\u003eLabel the breaker clearly in your electrical drawings to avoid confusion during future servicing or panel retrofits.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eWith its precise specification fit, robust bolt-on mounting, and the proven reliability of Westinghouse, this 505C220G22 circuit breaker is a practical, future-ready choice for maintaining safe, continuous operation in demanding electrical environments.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Westinghouse","offers":[{"title":"Default Title","offer_id":46427305246882,"sku":"505C220G22","price":510.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/master_generic_ad06fdd7-931c-4a09-bfbe-d05329579cd6.png?v=1765492978","url":"https:\/\/www.ampstate.com\/products\/westinghouse-505c220g22-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}