{"product_id":"westinghouse-504c740g09-circuit-breaker","title":"Westinghouse | 504C740G09 | Circuit Breaker | 75A | 3-Pole | 600V | Bolt-On","description":"\u003cdiv\u003e\n\u003cp\u003eThe Westinghouse 504C740G09 circuit breaker is a rugged, three-pole, 75-amp device designed for 600-volt electrical systems. Built for maintenance, retrofit, and replacement projects, this bolt-on breaker delivers reliable protection for three-phase feeders in commercial and light industrial panels.\u003c\/p\u003e \u003cul\u003e \u003cli\u003e\n\u003cb\u003eAmperage:\u003c\/b\u003e 75A\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003ePoles:\u003c\/b\u003e 3-Pole\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003eVoltage rating:\u003c\/b\u003e 600V\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003eMounting type:\u003c\/b\u003e Bolt-On\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003ePart reference:\u003c\/b\u003e 504C740G09\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003eCompatibility note:\u003c\/b\u003e Confirm fit and ratings before ordering; the part number is the best reference for compatibility.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003eWhy the bolt-on design matters\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eBolt-on mounting provides a robust, vibration-resistant connection that’s ideal for panels engineered to accept bolt-on breakers. This design supports secure bus engagement and long-term reliability in demanding environments, making it a trusted choice for installations that require solid mechanical integrity.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eIdeal use cases\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003eRetrofit and replacement projects in panels that support 3-pole, 600V breakers\u003c\/li\u003e \u003cli\u003eFeeder protection for 3-phase circuits in commercial or light industrial settings\u003c\/li\u003e \u003cli\u003eMaintenance outages where fast, dependable swap-outs minimize downtime\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003eWhat this means for your operation\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eWith a 75A rating, this breaker helps guard circuits feeding motors, compressors, and other three-phase loads without overcomplicating the protection scheme. It targets the balance between adequate protection and efficient load handling, reducing nuisance trips while maintaining safety margins.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eInstallation and safety considerations\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e installation should be performed by a qualified electrician following local codes and the panel’s manufacturer instructions. Before ordering, verify that your panel accommodates a 3-pole, 600V bolt-on breaker and that the 504C740G09’s fit matches your equipment’s bus design and ratings. Keep the part number handy as the most reliable reference for compatibility.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eHow it compares to other options\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eIn environments where vibration, panel movement, or heavy-duty service is a concern, bolt-on breakers like the 504C740G09 offer a more secure mechanical connection than plug-in alternatives. This translates to improved contact reliability, steadier electrical performance, and easier field servicing when replacements are needed.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Westinghouse","offers":[{"title":"Default Title","offer_id":46427308589218,"sku":"504C740G09","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-504c740g09-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}