{"product_id":"zinsco-rc3840-circuit-breaker","title":"Zinsco | RC3840 | Circuit Breaker | 2-Pole | 240V","description":"\u003cdiv\u003e\n\u003cp\u003e\u003cstrong\u003eZinsco RC3840\u003c\/strong\u003e is a genuine 2-pole, 240V circuit breaker crafted for maintenance, retrofit, and replacement projects in Zinsco panels. When a panel requires this exact model, RC3840 delivers authentic fit and reliable overcurrent protection for 240V circuits.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eKey details at a glance\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003ePoles:\u003c\/strong\u003e 2-Pole\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVoltage:\u003c\/strong\u003e 240V\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePart number:\u003c\/strong\u003e RC3840\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Zinsco\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Circuit Breaker\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003eWhy this specific RC3840 matters\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eIn electrical panels, the exact part number is your best reference for compatibility. The RC3840 is designed to fit Zinsco panels that specify a 2-pole, 240V breaker of this model. Using the exact RC3840 helps preserve the panel’s intended protection profile and mechanical interface, reducing the risk of fitment issues or improper protection.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eWho this is for\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003eHomeowners or technicians performing panel maintenance on Zinsco systems that call for RC3840\u003c\/li\u003e \u003cli\u003eRetrofit projects where an original 2-pole, 240V breaker needs replacement\u003c\/li\u003e \u003cli\u003eRepairs or upgrades in light commercial settings that use Zinsco panels requiring this model\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003eUse cases and practical scenarios\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003eReplacing a failed or aged 2-pole 240V breaker in a Zinsco panel to restore protected circuits\u003c\/li\u003e \u003cli\u003eMaintenance cycles that require standard, model-specific breakers to maintain panel integrity\u003c\/li\u003e \u003cli\u003eRetrofits where older equipment specifically references RC3840 for compatibility\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003eWhat to check before purchasing\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003eConfirm that your panel model and service rating align with a 2-pole, 240V RC3840 breaker. The part number RC3840 is the clearest reference for compatibility.\u003c\/li\u003e \u003cli\u003eVerify that the replacement’s amperage rating and breaking capacity match the original specification for the protected circuit.\u003c\/li\u003e \u003cli\u003eEnsure proper installation practices and local electrical codes are followed when replacing any circuit breaker.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eChoose the Zinsco RC3840 when your project needs an exact, model-specific replacement that fits the panel’s design and delivers dependable protection for 240V two-pole circuits. This is the precise part reference you want for maintenance, retrofit, and replacement work in compatible Zinsco installations.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Zinsco","offers":[{"title":"Default Title","offer_id":46427238826146,"sku":"RC3840","price":510.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/zinsco-rc3840-circuit-breaker-2-pole-240v-917.webp?v=1789691288","url":"https:\/\/www.ampstate.com\/products\/zinsco-rc3840-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}