{"product_id":"westinghouse-rfa3040-circuit-breaker","title":"Westinghouse | RFA3040 | Circuit Breaker | 40A | 3-Pole | 600V","description":"\u003cdiv\u003e\n\u003cp\u003ePower protection you can trust for three-phase electrical systems. The Westinghouse RFA3040 Circuit Breaker is a 40A, 3-Pole unit rated for up to 600V, engineered for reliable protection in maintenance, retrofit, and replacement scenarios.\u003c\/p\u003e \u003cp\u003eDesigned for professionals who manage commercial or industrial electrical panels, this breaker provides precise overcurrent protection to prevent equipment damage and improve safety. The three-pole configuration supports balanced three-phase circuits, helping keep motors, transformers, and control systems running smoothly.\u003c\/p\u003e \u003ch2\u003eKey specifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eAmperage:\u003c\/strong\u003e 40A\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePole configuration:\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\u003ePart number:\u003c\/strong\u003e RFA3040\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eWhy choose this Westinghouse RFA3040\u003c\/h2\u003e\n\u003cp\u003eThe RFA3040 is purpose-built for compatibility with existing Westinghouse panels and other systems with matching specs. When ordering, always confirm fit and ratings using the part number—RFA3040 is the most reliable reference for compatibility. This approach minimizes downtime and ensures you get a device that integrates cleanly with your breaker panel, bus, and trip characteristics.\u003c\/p\u003e \u003ch2\u003eUse cases and scenarios\u003c\/h2\u003e\n\u003cp\u003eIdeal for:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eReplacing a failed 3-pole breaker in a 3-phase 600V distribution panel serving motors, HVAC equipment, or heavy-duty transformers.\u003c\/li\u003e\n\u003cli\u003eRetrofits where a 40A protection level is needed to safeguard equipment and wiring without interrupting production.\u003c\/li\u003e\n\u003cli\u003eMaintenance projects that require a direct, drop-in replacement with identical ratings to avoid rewiring or panel modification.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eWhat makes it different from generic breakers\u003c\/h2\u003e\n\u003cp\u003eStandard, off-brand substitutes can introduce compatibility risk with panel mounting, trip characteristics, and wiring terminals. The Westinghouse RFA3040 uses precise contact geometry and labeling aligned with Westinghouse and shared industry standards, reducing misfit scenarios and ensuring consistent performance in demanding environments.\u003c\/p\u003e \u003ch2\u003ePractical tips for installation and longevity\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eBefore installation, verify the panel’s voltage class and the wire sizing match your 40A, 3-Pole 600V requirements.\u003c\/li\u003e\n\u003cli\u003eHandle with care during removal and replacement to maintain terminal torque and integrity.\u003c\/li\u003e\n\u003cli\u003eDocument the part number (RFA3040) in your maintenance records for fast future replacements.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eRestore reliable protection to your three-phase electrical system with the Westinghouse RFA3040 Circuit Breaker — engineered for dependable performance, straightforward compatibility, and peace of mind in critical applications.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Westinghouse","offers":[{"title":"Default Title","offer_id":46427404632226,"sku":"RFA3040","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-rfa3040-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}