{"product_id":"square-d-qmb364w-200a-600v-fusible-switch","title":"Square D QMB364W - 200A, 600V, Fusible, Switch","description":"\u003cdiv\u003e\n\u003cp\u003eMeet the Square D QMB364W — a robust 200A, 600V Fusible Switch designed to deliver reliable on\/off isolation and precise overcurrent protection in demanding industrial and commercial environments. This compact, maintainable switch is purpose-built for motor disconnects, panelboards, and branch circuit protection where space is limited but dependable protection is essential.\u003c\/p\u003e \u003ch2\u003eWhy the QMB364W stands out\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eFusible protection\u003c\/strong\u003e for targeted overcurrent interruption, helping to safeguard motors and feeders while enabling straightforward fuse replacements when servicing is required.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eHigh current at elevated voltage\u003c\/strong\u003e with a 200A rating and support up to 600V, making it ideal for serious motor disconnects and distribution tasks in both industrial and commercial settings.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eCompact, maintainable design\u003c\/strong\u003e that fits tight electrical rooms or panel layouts without sacrificing ease of service — designed to minimize downtime during inspections or fuse changes.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVersatile applications\u003c\/strong\u003e perfect for standalone motor disconnects, integration within panelboards, or serving as a dedicated branch circuit protection point.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003ePractical applications and scenarios\u003c\/h3\u003e\n\u003cp\u003eIn a production line, the QMB364W can act as the primary disconnect for a large motor, allowing rapid isolation for maintenance while protecting the circuit from overcurrent events. In a distribution panel, it serves as a dedicated fused switch that coordinates with protective devices downstream, helping to isolate faults quickly and safely. For facilities with multiple low- to mid-voltage feeders, this switch provides a compact, reliable solution where space and serviceability matter most.\u003c\/p\u003e \u003ch3\u003eKey considerations for selecting and installing\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eEnsure the 200A current rating and 600V maximum voltage align with your system requirements and conductor sizing.\u003c\/li\u003e \u003cli\u003eUse compatible fuses to achieve the desired protection coordination and to simplify field maintenance.\u003c\/li\u003e \u003cli\u003ePlan for accessible fuse replacement and a mounting footprint that fits your enclosure or switchgear configuration.\u003c\/li\u003e \u003cli\u003eFollow standard electrical safety practices during installation and maintenance to ensure reliable operation and worker safety.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eWith the Square D QMB364W, you gain a purpose-built fusible switch that delivers dependable isolation and protective capability in a compact, maintainable package — a practical, long-term solution for motor control and circuit protection in demanding environments.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Amp-State","offers":[{"title":"Default","offer_id":46390354182306,"sku":"QMB364W","price":429.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/fusible_disconnect_generic_5251b19a-e313-4211-a551-9fad6b2fbdbd.png?v=1765368904","url":"https:\/\/www.ampstate.com\/products\/square-d-qmb364w-200a-600v-fusible-switch","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}