{"product_id":"westinghouse-rk3125-circuit-breaker","title":"Westinghouse | RK3125 | Circuit Breaker | 125A | 3-Pole | 600V","description":"\u003cdiv\u003e\n\u003cp\u003eMeet the Westinghouse RK3125 Circuit Breaker—a purpose-built protection device designed for demanding 3-phase electrical systems. Rated at 125A, this 3-pole breaker delivers reliable fault isolation for circuits up to 600V, making it a solid choice for maintenance, retrofit, and replacement projects where exact specs matter.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eKey details at a glance\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eAmperage:\u003c\/strong\u003e 125A\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePoles:\u003c\/strong\u003e 3-Pole\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVoltage rating:\u003c\/strong\u003e 600V\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReference compatibility:\u003c\/strong\u003e Part number RK3125 ensures you’re matching the exact component you need\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003eWhy choose the Westinghouse RK3125\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eDirect-fit option for 3-phase service panels that require a 125A, 3-pole breaker, simplifying replacements and upgrades without panel modifications.\u003c\/li\u003e\n\u003cli\u003eSupports reliable electrical protection in commercial and industrial environments where equipment safety and uptime are critical.\u003c\/li\u003e\n\u003cli\u003eClear compatibility reference: using the RK3125 part number reduces guesswork and helps you verify fit before purchase.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003eIdeal use cases\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eReplacing a failed 3-pole breaker in service or distribution panels that operate up to 600V.\u003c\/li\u003e\n\u003cli\u003eRetrofits or upgrades where a 125A capacity and 3-phase protection are required.\u003c\/li\u003e\n\u003cli\u003eMaintenance cycles in warehouses, manufacturing floors, data centers, or large commercial spaces with 3-stage circuits.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003eInstallation and safety notes\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eBefore ordering, confirm fit and ratings against your panel’s labeling and the RK3125 reference to ensure compatibility.\u003c\/li\u003e\n\u003cli\u003eHave a qualified electrician perform installation and adhere to local electrical codes and safety practices.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eWith the Westinghouse RK3125, you get a trusted 125A, 3-pole, 600V circuit breaker that helps keep critical systems protected while simplifying replacements and retrofits. Rely on a familiar form factor and a known performance baseline to minimize downtime and support steady, safe operation of your electrical distribution.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Westinghouse","offers":[{"title":"Default Title","offer_id":46427402895522,"sku":"RK3125","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-rk3125-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}