{"product_id":"square-d-rja36120cu33a-1200a-3p-600v-circuit-breaker","title":"Square D RJA36120CU33A 1200A 3P 600V Circuit Breaker | AmpState","description":"\u003cdiv\u003e\n\u003cp\u003eMeet the Square D \u003cstrong\u003eRJA36120CU33A\u003c\/strong\u003e, a high-capacity circuit breaker purpose-built for serious electrical protection in panelboards, load centers, and broader distribution networks. With a \u003cstrong\u003e1200 A\u003c\/strong\u003e rating, this 3-pole unit is engineered to handle demanding power needs while delivering dependable performance in industrial and commercial settings. Its \u003cstrong\u003e600 V\u003c\/strong\u003e rating makes it suitable for a wide range of three-phase applications, ensuring consistent protection across your critical feeders and downstream circuits.\u003c\/p\u003e \u003ch3\u003eKey advantages\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eHigh-capacity protection\u003c\/strong\u003e—1200 A current rating provides robust main-disconnect protection for large electrical systems and feeders.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eThree-pole design\u003c\/strong\u003e—optimized for three-phase installations, helping maintain balanced protection across phases.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eIndustrial-grade reliability\u003c\/strong\u003e—Square D reliability you can rely on for continuous operation in demanding environments.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eFit-for-retrofit planning\u003c\/strong\u003e—ideal for retrofit projects where keeping the exact part number assists maintenance schedules and inventory management.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePart availability\u003c\/strong\u003e—currently available from AmpState, with support to verify compatibility and fit.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eWhy this model matters for your system\u003c\/h3\u003e\n\u003cp\u003eWhen your electrical distribution relies on panelboards and load centers that demand a specific 3-pole, 600V protection device, the RJA36120CU33A delivers a reliable safeguard for feeders and downstream circuits. The 1200 A rating is particularly beneficial for large facilities, data centers, manufacturing floors, and other environments where uninterrupted power is essential. Using a breaker from the RJA series also supports consistency across maintenance cycles, reducing part-number confusion during replacements or upgrades.\u003c\/p\u003e \u003ch3\u003eIdeal use cases\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eMajor panelboards and load centers in industrial facilities requiring high-capacity, three-phase protective disconnects.\u003c\/li\u003e \u003cli\u003eRetrofit projects where the exact part number must be maintained for compatibility with existing electrical drawings and maintenance records.\u003c\/li\u003e \u003cli\u003eCommercial spaces with heavy electrical loads that need dependable protection for main feeders and distribution circuits.\u003c\/li\u003e \u003cli\u003eNew installations that demand a proven 600V, 3-pole protection solution from a trusted brand.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eCompatibility and practical considerations\u003c\/h3\u003e\n\u003cp\u003eTo ensure a precise fit, verify that your panelboard or load center specifies the RJA36120CU33A part number, three poles, and a 600V rating. If you’re unsure about fit, AmpState offers assistance to confirm compatibility and help you lock in the correct replacement part for your system.\u003c\/p\u003e \u003ch3\u003eAvailability and how to buy\u003c\/h3\u003e\n\u003cp\u003eThis 1200 A, 3P, 600V Square D circuit breaker is available from AmpState. Add it to your cart to secure a documented part that aligns with your retrofit or maintenance plan, keeping your electrical distribution consistent and ready for service.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"AmpState","offers":[{"title":"Default Title","offer_id":46412835389602,"sku":"RJA36120CU33A","price":52763.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/square-d-rja36120cu33a-1200a-3p-600v-circuit-breaker-ampstate-976.webp?v=1789029695","url":"https:\/\/www.ampstate.com\/products\/square-d-rja36120cu33a-1200a-3p-600v-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}