{"product_id":"westinghouse-504c612g28-circuit-breaker","title":"Westinghouse | 504C612G28 | Circuit Breaker | 400A | 600V | Bolt-On","description":"\u003cdiv\u003e\n\u003cp\u003e\u003cstrong\u003eWestinghouse 504C612G28 Circuit Breaker\u003c\/strong\u003e is a high-capacity, bolt-on protection device engineered for demanding electrical environments. With a 400 A rating and a 600 V maximum, this unit is purpose-built for maintenance, retrofit, and replacement projects where exact specifications are essential.\u003c\/p\u003e \u003cp\u003eDesigned for straightforward, secure installation, the bolt-on design delivers a reliable, vibration-resistant connection that minimizes downtime during panel upgrades and replacements. This isn’t a guessing game—the 504C612G28 is purpose-matched for systems that require this specific reference, helping you avoid compatibility pitfalls and service interruptions.\u003c\/p\u003e \u003ch3\u003eKey specifications\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eAmperage:\u003c\/strong\u003e 400 A\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVoltage:\u003c\/strong\u003e 600 V\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eMounting:\u003c\/strong\u003e Bolt-On\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePart reference:\u003c\/strong\u003e 504C612G28\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eWhat makes this breaker stand out\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003e\u003cstrongprecise compatibility for replacement and retrofit\u003e—useful when your panels specify the 504C612G28 part number to ensure correct fit and protection characteristics.\u003c\/strongprecise\u003e\u003c\/li\u003e \u003cli\u003e\u003cstronglow-downtime installation\u003e—bolt-on mounting streamlines swaps in compatible Westinghouse panels, reducing field labor and panel downtime.\u003c\/stronglow-downtime\u003e\u003c\/li\u003e \u003cli\u003e\u003cstrongreliable protection for high-load circuits\u003e—handles substantial current in commercial and industrial feeders while maintaining clear trip goals within its 600 V rating.\u003c\/strongreliable\u003e\u003c\/li\u003e \u003cli\u003e\u003cstrongclear reference for sourcing\u003e—the part number provides a definitive compatibility cue, helping procurement avoid mismatched components.\u003c\/strongclear\u003e\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eIdeal use cases\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eIndustrial facilities performing panel upgrades or capacity expansions that require a 400 A, 600 V bolt-on breaker.\u003c\/li\u003e \u003cli\u003eCommercial buildings undergoing maintenance or retrofits where matching Westinghouse specifications are specified by the panel manufacturer.\u003c\/li\u003e \u003cli\u003eReplacement of aging protection devices in systems designed around the 504C612G28 footprint and electrical characteristics.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eFit, compatibility, and practical tips\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eAlways confirm the exact panel compatibility by cross-referencing the panel labeling with the 504C612G28 part number. This is the most reliable reference for proper fit.\u003c\/li\u003e \u003cli\u003eVerify the panel's rating and bus configuration to ensure the bolt-on mounting aligns with the existing mounting pattern and electrical clearances.\u003c\/li\u003e \u003cli\u003eBefore installation, de-energize the panel and follow site safety procedures. Use torque specifications appropriate for the bolt-on lugs to secure a solid connection.\u003c\/li\u003e \u003cli\u003eDocument the replacement with the part number and panel model in your maintenance log to streamline future service or expansions.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eFor professionals upgrading or maintaining large electrical systems, the Westinghouse 504C612G28 circuit breaker delivers a precise, dependable solution that aligns with established specs, minimizes downtime, and simplifies procurement through its clear part-number reference. When timing and accuracy matter in protection upgrades, this bolt-on breaker offers a practical, well-matched choice for your high-demand applications.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Westinghouse","offers":[{"title":"Default Title","offer_id":46427312619682,"sku":"504C612G28","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-504c612g28-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}