{"product_id":"square-d-qo3201021-20a-3p-240v-circuit-breaker","title":"Square D QO3201021 20A 3P 240V Circuit Breaker, Plug-On, Shunt Trip | AmpState","description":"\u003cdiv\u003e\n\u003cp\u003eMeet the Square D QO3201021 — a purpose-built circuit breaker engineered for reliable protection in panelboards, load centers, and electrical distribution networks. This 20 A, 3-pole device from the QO family is a precise part-number match for installations that demand exact compatibility, making it an excellent choice for maintenance teams, panel builders, and spare-inventory strategies where reliable substitutes matter.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eKey configuration\u003c\/strong\u003e: Plug-On with Shunt Trip. This combination delivers straightforward installation and the option for remote or interlock-style trip signaling, enhancing safety and control in systems that require quick, fail-safe shutdown under signal input.\u003c\/p\u003e \u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eManufacturer:\u003c\/strong\u003e Square D\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e QO3201021\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Circuit Breaker\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eAmperage:\u003c\/strong\u003e 20 A\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePoles:\u003c\/strong\u003e 3\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVoltage:\u003c\/strong\u003e 240V\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eConfiguration:\u003c\/strong\u003e Plug-On with Shunt Trip\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eWhy this matters in real-world installations:\u003c\/p\u003e \u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eDirect-fit for the Square D QO family:\u003c\/strong\u003e Ensures seamless integration with compatible panelboards and distribution equipment, reducing compatibility guesswork during replacements or upgrades.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eThree-pole protection at 240V:\u003c\/strong\u003e Supports multi-phase circuits and balanced protection across all legs, helping maintain system safety and reliability.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003e20 A rating for common branch circuits:\u003c\/strong\u003e Ideal for moderate-load circuits, with predictable tripping behavior to protect wiring and devices.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eShunt Trip capability:\u003c\/strong\u003e Enables remote-trip safety strategies in systems that require rapid shutdown signals, aligning with safety standards and emergency-control workflows.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eStock certainty:\u003c\/strong\u003e A precise part-number match reduces the risk of incompatibility during maintenance, retrofits, or new builds.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eThis item is available from AmpState, designed for professionals who need dependable, field-ready breakers with exact-fit assurance. If you’re unsure about fit or compatibility, send a quick message and we’ll help confirm whether the QO3201021 is the right choice for your panel or distribution setup.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"AmpState","offers":[{"title":"Default Title","offer_id":46410861117602,"sku":"QO3201021","price":10.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/master_generic_83963f7f-600e-419f-90c6-e7677089642b.png?v=1765492973","url":"https:\/\/www.ampstate.com\/products\/square-d-qo3201021-20a-3p-240v-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}