{"product_id":"qob340","title":"Square D QOB340 - 40A, Circuit Breaker","description":"\u003cdiv\u003e\n\u003cp\u003e\u003cstrong\u003eSquare D QOB340\u003c\/strong\u003e — a dependable 40A circuit breaker engineered for demanding electrical environments. This protector is designed for panelboards, switchboards, control panels, and OEM equipment, delivering reliable overcurrent protection that keeps critical systems safe and operational.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eKey advantages\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003e40 Amp protection\u003c\/strong\u003e for branch circuits and motor feeds, helping to prevent wiring damage and unexpected outages.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVersatile compatibility\u003c\/strong\u003e suitable for panelboards, switchboards, control panels, and OEM installations, enabling seamless integration into a variety of electrical architectures.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eIndustrial-grade reliability\u003c\/strong\u003e built for continuous operation in distribution panels and motor control centers where safety and uptime are essential.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003ePractical use cases\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003eProtecting feeders and motors in manufacturing lines to ensure smooth, fault-free operation.\u003c\/li\u003e \u003cli\u003eProviding robust overcurrent protection in distribution panels for commercial facilities, data centers, and other critical environments.\u003c\/li\u003e \u003cli\u003eOEM applications requiring a proven 40A breaker to safeguard equipment while simplifying replacement parts sourcing.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003eWho should consider the Square D QOB340?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003eElectrical engineers and facility managers assembling or upgrading electrical distribution systems\u003c\/li\u003e \u003cli\u003eElectricians stocking parts for panel replacements and OEM builds\u003c\/li\u003e \u003cli\u003eManufacturers operating motor control centers and control panels demanding dependable protection\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003eWhy this model matters\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003eBacked by Square D’s legacy of reliability, delivering predictable performance at a practical 40A rating.\u003c\/li\u003e \u003cli\u003eDesigned to minimize downtime by providing solid overcurrent protection in critical power paths within distribution panels and MCCs.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003eSpecifications at a glance\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003eCurrent rating: 40A\u003c\/li\u003e \u003cli\u003eBreaker type: Circuit Breaker\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"Square D","offers":[{"title":"Default","offer_id":46390603055266,"sku":"QOB340","price":127.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/circuit_breaker_generic_8a479d0e-d0c1-4f24-9e23-8fb14eb67590.png?v=1765377656","url":"https:\/\/www.ampstate.com\/products\/qob340","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}