{"product_id":"square-d-qmb323tw-100a-240v-3-pole-fusible-switch","title":"Square D QMB323TW - 100A, 240V, 3-Pole, Fusible, Switch","description":"\u003cdiv\u003e\n\u003cp\u003eMeet the Square D QMB323TW, a 100A, 240V, 3-Pole Fusible Switch engineered for reliable on\/off isolation and precise overcurrent protection in demanding industrial and commercial environments. This compact, maintainable switch from a trusted electrical systems heritage is built to keep critical equipment safe while simplifying control and maintenance tasks.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eKey specifications\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eModel:\u003c\/strong\u003e QMB323TW\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eAmperage:\u003c\/strong\u003e 100A\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVoltage:\u003c\/strong\u003e 240V\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePoles:\u003c\/strong\u003e 3-Pole\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eFused:\u003c\/strong\u003e Fusible\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eWhy this fusible switch matters\u003c\/h3\u003e\n\u003cp\u003eThe QMB323TW delivers a dedicated, single-point solution for isolation and protection. Its fusible design provides integrated overcurrent protection, giving you a clear, reliable disconnect for safe maintenance and quick response to electrical faults. The 3-Pole configuration ensures complete circuit isolation, which is essential for safeguarding motors, panelboards, and branch circuits in space‑constrained installations.\u003c\/p\u003e \u003ch3\u003eIdeal use cases\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eMotor disconnects in small to medium drive systems where space is at a premium\u003c\/li\u003e \u003cli\u003ePanelboard isolation to facilitate safe servicing and fault containment\u003c\/li\u003e \u003cli\u003eBranch circuit protection in compact distribution setups where a dedicated fusible switch is required\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eWho benefits\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eElectrical contractors deploying dependable, ready-to-install protection in new builds or retrofit projects\u003c\/li\u003e \u003cli\u003eFacilities managers coordinating safe shutdowns and maintenance across commercial or industrial sites\u003c\/li\u003e \u003cli\u003ePlant engineers seeking a durable, compact solution that pairs protection with straightforward operation\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eWhat makes it stand out\u003c\/h3\u003e\n\u003cp\u003eUnlike larger, bulkier disconnects or passive isolators, the QMB323TW combines robust protection with a compact footprint, making it easier to fit into existing panels without compromising safety or accessibility. The fusible design is purpose-built for quick fault response and straightforward maintenance, helping reduce downtime and keep systems running smoothly in harsh environments.\u003c\/p\u003e \u003ch3\u003ePractical considerations\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eConfirm that the installation voltage and current align with your circuit requirements (240V, 100A).\u003c\/li\u003e \u003cli\u003eFollow local electrical codes and standards when integrating the switch into panelboards or motor circuits.\u003c\/li\u003e \u003cli\u003ePlan for routine inspection of the fusible elements as part of preventive maintenance to ensure reliable protection.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"Amp-State","offers":[{"title":"Default","offer_id":46390370140322,"sku":"QMB323TW","price":1031.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/fusible_disconnect_generic_25ec38c2-c9c3-4537-bfdf-dfb3d0b7946c.png?v=1765369322","url":"https:\/\/www.ampstate.com\/products\/square-d-qmb323tw-100a-240v-3-pole-fusible-switch","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}