{"product_id":"square-d-gs1mu3-175a-fusible-disconnect-switch","title":"Square D GS1MU3 - 175A, Fusible, Disconnect Switch","description":"\u003cdiv\u003e\n\u003cp\u003eMeet the Square D GS1MU3 — a 175A fusible disconnect switch built to deliver reliable on\/off isolation and robust overcurrent protection in demanding industrial and commercial environments. With a compact footprint and a design that prioritizes maintainability, this disconnect switch is purpose-built for motor control, panelboards, and branch circuits where space and simplicity matter.\u003c\/p\u003e \u003cul\u003e \u003cli\u003e\n\u003cstrong\u003e175A fusible protection:\u003c\/strong\u003e The fusible design provides clear, prompt fault isolation to protect wiring and downstream equipment during overloads or faults.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eCompact and maintainable:\u003c\/strong\u003e A streamlined enclosure and accessible fuse area make installation, inspection, and service straightforward even in tight panel layouts.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVersatile motor disconnect:\u003c\/strong\u003e A dependable solution for safely disconnecting motors, enabling safe maintenance and controlled startup\/shutdown sequences.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePanelboard and branch circuit protection:\u003c\/strong\u003e Ideal for upstream protection in commercial spaces and demanding environments where a single, centralized disconnect is advantageous.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eUse cases and practical scenarios\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eInstall in motor control centers or panelboards to provide a dedicated isolation point with built-in overcurrent protection.\u003c\/li\u003e \u003cli\u003eConsolidate protection and switching in tight spaces by using a compact fusible disconnect for branch circuits that require a single disconnect device.\u003c\/li\u003e \u003cli\u003ePlan maintenance workflows around a clear, visible open\/closed state, reducing downtime and improving safety during service.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eWhy this matters\u003c\/h3\u003e\n\u003cp\u003eThe GS1MU3 combines a robust 175A capacity with a fusible design that simplifies protection schemes and enhances fault response. In environments where reliability and ease of maintenance are critical, this disconnect switch delivers a focused, purpose-built solution for safe shutdowns, controlled energization, and streamlined panel architecture.\u003c\/p\u003e \u003ch3\u003eInstallation and best practices\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eAllow adequate clearance around the switch for safe operation and fuse replacement.\u003c\/li\u003e \u003cli\u003eFollow your system’s fuse rating requirements and the provided installation guidelines to ensure correct wiring and secure connections.\u003c\/li\u003e \u003cli\u003eCoordinate the disconnect with other protection devices in your system to achieve a cohesive, safe protection strategy.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eProduct details: Model GS1MU3 • 175A • Fusible disconnect switch. Engineered for reliability in industrial and commercial settings, this Square D solution delivers dependable isolation and protection in a compact, maintainable package.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Amp-State","offers":[{"title":"Default","offer_id":46390338977954,"sku":"GS1MU3","price":1284.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/fusible_disconnect_generic_52c7e89c-205d-4f62-83f5-956da1c52ef6.png?v=1765368409","url":"https:\/\/www.ampstate.com\/products\/square-d-gs1mu3-175a-fusible-disconnect-switch","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}