{"product_id":"square-d-100-amp-twin-fusible-panelboard-switch-qmb323tw-3p-240-vac","title":"Square D 100 Amp Twin Fusible Panelboard Switch QMB323TW 3P 240 Vac","description":"\u003cdiv\u003e\n\u003cp\u003eUpgrade your electrical distribution with the Square D 100 Amp Twin Fusible Panelboard Switch QMB323TW 3P 240 Vac. Built by Square D for durability and dependable performance, this panelboard switch is designed to keep mid-size feeders protected and systems online in demanding commercial, light industrial, and select residential applications.\u003c\/p\u003e \u003ch2\u003eWhat makes the QMB323TW essential\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003e100 A, 3-Phase, 240 VAC\u003c\/strong\u003e protection delivers fast, reliable fault isolation for commercial and industrial panelboards, helping you minimize downtime and keep critical loads operating smoothly. The \u003cstrong\u003etwin fusible design\u003c\/strong\u003e offers compact, field-serviceable protection that fits seamlessly into standard panelboard workflows—perfect for retrofit projects, maintenance replacements, and routine upgrades.\u003c\/p\u003e \u003ch3\u003eWhy this panelboard switch stands out\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eCompact, field-serviceable protection\u003c\/strong\u003e — Twin fusible cartridges simplify maintenance and allow quick swaps without disrupting adjacent circuits.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePro-grade reliability\u003c\/strong\u003e — Square D engineering ensures a trusted, durable component backed by a robust spares and service ecosystem.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVersatile deployment\u003c\/strong\u003e — Ideal for panel upgrades, retrofits, and ongoing maintenance where dependable protection is a must.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eDesigned for pros\u003c\/strong\u003e — Streamlines installation for electricians, panel builders, and MRO teams, reducing downtime and field complexity.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eWho should consider it\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eElectricians performing panel upgrades in commercial buildings\u003c\/li\u003e \u003cli\u003ePanel builders stocking reliable protection components\u003c\/li\u003e \u003cli\u003eMRO teams responsible for ongoing service in industrial environments\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003ePractical benefits and use cases\u003c\/h3\u003e\n\u003cp\u003eWith a clear \u003cem\u003epath for upgrades, spares, and service\u003c\/em\u003e, the QMB323TW keeps your distribution aligned with maintenance schedules and safety standards. It’s especially suited for:\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003eMid-size feeders feeding essential equipment in commercial facilities\u003c\/li\u003e \u003cli\u003eRetrofits where existing protection needs replacement without reworking entire panelboards\u003c\/li\u003e \u003cli\u003eRoutine maintenance deployments that require a dependable, easy-to-stock protection component\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eHow this compares to typical protection components\u003c\/h3\u003e\n\u003cp\u003eUnlike generic protection modules, the QMB323TW blends \u003cstrong\u003eSquare D quality\u003c\/strong\u003e with a \u003cstrong\u003etwin fusible design\u003c\/strong\u003e that enables fast fault isolation and straightforward field servicing. It integrates smoothly into standard 3P, 240 VAC configurations, reducing the need for custom parts while preserving uptime.\u003c\/p\u003e \u003ch3\u003eTechnical highlights\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003e amperage\u003c\/strong\u003e: 100 A\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003e configuration\u003c\/strong\u003e: Twin fusible, 3P\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003e voltage\u003c\/strong\u003e: 240 VAC\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003e applications\u003c\/strong\u003e: Commercial, light industrial, select residential\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003e installation\u003c\/strong\u003e: Ready for retrofit and maintenance scenarios\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003ePractical tips for installation and maintenance\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eBefore installing, verify that your system is \u003cstrong\u003e3P 240 VAC\u003c\/strong\u003e configuration to ensure compatibility.\u003c\/li\u003e \u003cli\u003eKeep a spare \u003cstrong\u003eQMB323TW\u003c\/strong\u003e on hand for rapid replacement during planned maintenance or unexpected faults.\u003c\/li\u003e \u003cli\u003eAdhere to all safety procedures and local electrical codes during installation and servicing.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eWith the Square D 100 Amp Twin Fusible Panelboard Switch QMB323TW 3P 240 Vac, you gain a reliable, shop-ready protection solution that keeps your commercial and industrial electrical systems performing at their best. It’s the smart choice for professionals who value uptime, serviceability, and a proven protection strategy.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Square D","offers":[{"title":"Default Title","offer_id":46395777384610,"sku":null,"price":1235.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/master_generic_bd526ec2-f109-446f-b7aa-0f8874a7d73a.png?v=1765492973","url":"https:\/\/www.ampstate.com\/products\/square-d-100-amp-twin-fusible-panelboard-switch-qmb323tw-3p-240-vac","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}