{"product_id":"square-d-qou340-40a-3p-240v-circuit-breaker","title":"Square D QOU340 40A 3P 240V Circuit Breaker | AmpState","description":"\u003cdiv\u003e\n\u003cp\u003e\u003cstrong\u003eSquare D QOU340 40A 3P 240V Circuit Breaker\u003c\/strong\u003e designed to deliver dependable overcurrent protection for panelboards, load centers, and electrical distribution systems. This 3-pole, 240V device provides coordinated protection across three conductors, helping keep critical circuits safe and uninterrupted.\u003c\/p\u003e \u003cp\u003eBuilt by Square D, the QOU340 is a trusted choice for retrofit work and maintenance planning where keeping the exact part number matters. Maintaining a consistent part number streamlines ordering, minimizes downtime, and ensures your electrical system remains compliant with the right component in place.\u003c\/p\u003e \u003ch3\u003eIdeal applications\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003ePanelboards and load centers requiring multi-pole protection\u003c\/li\u003e \u003cli\u003eElectrical distribution setups that operate on 240V circuits\u003c\/li\u003e \u003cli\u003eRetrofit projects and ongoing maintenance where part-number consistency is important\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eProduct specifications\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eManufacturer:\u003c\/strong\u003e Square D\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e QOU340\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 40 A\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePoles:\u003c\/strong\u003e 3 Poles\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVoltage:\u003c\/strong\u003e 240V\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eWhy shop with AmpState\u003c\/h3\u003e\n\u003cp\u003eAvailable from AmpState, the QOU340 is ready to ship to keep your project on track. If you need help confirming compatibility or matching a part number, we’re here to assist. Need help matching a part number or confirming compatibility? Message us and we’ll help you confirm fit.\u003c\/p\u003e \u003ch3\u003ePractical guidance for use\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eChoose this 3P 40A 240V breaker when your system requires reliable, multi-pole protection without compromising on part-number consistency.\u003c\/li\u003e \u003cli\u003ePlan maintenance around a known, available part to minimize panel downtime during replacements.\u003c\/li\u003e \u003cli\u003eCoordinate with your distribution strategy to ensure seamless integration with existing Square D components.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"AmpState","offers":[{"title":"Default Title","offer_id":46410866753698,"sku":"QOU340","price":433.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/square-d-qou340-40a-3p-240v-circuit-breaker-ampstate-breakers-194.webp?v=1788980494","url":"https:\/\/www.ampstate.com\/products\/square-d-qou340-40a-3p-240v-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}