{"product_id":"square-d-qmj364h-200a-600v-fusible-switch","title":"Square D QMJ364H - 200A, 600V, Fusible, Switch","description":"\u003cdiv\u003e\n\u003cp\u003e\u003cstrong\u003eSquare D QMJ364H\u003c\/strong\u003e is a robust 200A, 600V fusible switch built for reliable on\/off isolation and precise overcurrent protection in demanding industrial and commercial environments. Its compact, maintainable design makes it a practical choice where space is at a premium but reliability isn’t negotiable.\u003c\/p\u003e \u003cp\u003eDesigned to meet the needs of motor control and distribution applications, the QMJ364H serves as a trusted \u003cstrong\u003emotor disconnect switch\u003c\/strong\u003e and \u003cstrong\u003epanelboard protection\u003c\/strong\u003e point. When you need a dedicated, fuse-protected disconnect that’s easy to service, this unit delivers straightforward isolation with dependable protection for downstream circuits.\u003c\/p\u003e \u003ch3\u003eKey specifications\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eModel:\u003c\/strong\u003e QMJ364H\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eAmp rating:\u003c\/strong\u003e 200A\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVoltage rating:\u003c\/strong\u003e 600V\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eFusible:\u003c\/strong\u003e Fusible design (requires compatible fuses)\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eWhy this fusible switch stands out\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eTargeted protection\u003c\/strong\u003e—By integrating fuse protection at the point of use, the QMJ364H helps limit fault currents to protect conductors, equipment, and downstream devices, while providing a clean isolation point for maintenance.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eCompact, maintainable form\u003c\/strong\u003e—The switch’s footprint is designed to fit into tighter installations without sacrificing accessibility for fuse replacement and service checks.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVersatile application\u003c\/strong\u003e—Ideal for motor disconnects, panelboards, and branch circuits where a reliable, easy-to-service protective switch is required to meet diverse industrial or commercial needs.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eReliability in demanding environments\u003c\/strong\u003e—Built to perform consistently in environments where robust isolation and dependable protection are essential for uptime and safety.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003ePractical use cases\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eMotor control centers and machinery rooms requiring a dedicated, fuse-protected disconnect for maintenance or service work.\u003c\/li\u003e \u003cli\u003ePanelboard upgrades or new installations where a compact, fusible disconnect is preferred for branch circuit protection.\u003c\/li\u003e \u003cli\u003eLocations needing a clear, safe isolation point to quickly shut down a circuit during fault conditions or routine servicing.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eHow it helps your operation\u003c\/h3\u003e\n\u003cp\u003eThe Square D QMJ364H provides a decisive balance between protection and practicality. By combining a fusible protection scheme with a reliable isolation switch, it helps you manage fault currents effectively, coordinate with upstream protection, and simplify maintenance workflows. In environments with frequent servicing or high motor loads, having a dedicated, easy-to-service disconnect reduces downtime and supports safer lockout\/tagout procedures.\u003c\/p\u003e \u003ch3\u003eTips for optimal use\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003ePair the QMJ364H with appropriately rated fuses to ensure complete protection of the protected circuit.\u003c\/li\u003e \u003cli\u003ePlan for straightforward fuse replacement by choosing an installation location with unobstructed access and clear labeling.\u003c\/li\u003e \u003cli\u003eEnsure compatible wiring practices and correct terminal tightness during installation to maintain reliable contact and minimize heat buildup.\u003c\/li\u003e \u003cli\u003eUse this fusible switch as a dedicated isolation point in motor circuits and branch feeds to maximize protection and serviceability.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eWhether you’re configuring a new motor control scheme or upgrading an existing panelboard, the Square D QMJ364H delivers a focused combination of \u003cstrong\u003erated 200A at 600V\u003c\/strong\u003e, \u003cstrong\u003efusible protection\u003c\/strong\u003e, and \u003cstrong\u003eeasy maintenance\u003c\/strong\u003e—a steadfast choice for professional-grade isolation and circuit protection.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Amp-State","offers":[{"title":"Default","offer_id":46390332620962,"sku":"QMJ364H","price":4093.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/fusible_disconnect_generic_7bbe2e96-c6b2-4cb5-b845-7a6b44aa788e.png?v=1765368162","url":"https:\/\/www.ampstate.com\/products\/square-d-qmj364h-200a-600v-fusible-switch","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}