{"product_id":"u-3a-310a-switch","title":"U-3A - 310A, Switch","description":"\u003cdiv\u003e\n\u003cp\u003eThe U-3A - 310A, Switch is a rugged fusible switch engineered for dependable on\/off isolation and precise overcurrent protection in demanding industrial and commercial environments. Built to withstand tough conditions, this compact unit delivers straightforward maintenance and reliable circuit protection where it matters most— motor disconnects, panelboards, and branch circuits.\u003c\/p\u003e \u003ch3\u003eKey specifications\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eModel:\u003c\/strong\u003e U-3A\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eAmperage:\u003c\/strong\u003e 310 A\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Fusible switch for on\/off isolation with integrated overcurrent protection\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eWhy the U-3A 310A Fusible Switch stands out\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eCompact, maintainable design\u003c\/strong\u003e fits into tight spaces without sacrificing protection, making retrofits and new installations easier in crowded panels.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eReliable isolation\u003c\/strong\u003e ensures safe servicing by clearly separating circuits during maintenance or fault conditions.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eIntegrated overcurrent protection\u003c\/strong\u003e supports branch circuits and motor feeds, helping to safeguard equipment and wiring from overload events.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eDurable construction\u003c\/strong\u003e built for industrial environments where resilience and long service life matter most.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eIdeal use scenarios\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eMotor disconnects in manufacturing lines and processing equipment\u003c\/li\u003e \u003cli\u003ePanelboards requiring a compact, maintainable protection device\u003c\/li\u003e \u003cli\u003eBranch circuit protection for control panels and distributed electrical feeds\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eInstallation and practical considerations\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eDesigned for straightforward integration into existing electrical distributions—evaluate fuse type and sizing in consultation with your electrical engineer.\u003c\/li\u003e \u003cli\u003eCoordinate with overall protection schemes to ensure fast fault clearing and minimal downtime.\u003c\/li\u003e \u003cli\u003eRegular maintenance should include inspecting connection integrity and replacing protective elements as recommended in your facility’s preventive maintenance plan.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"Amp-State","offers":[{"title":"Default","offer_id":46390387802274,"sku":"U-3A","price":273.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/fusible_disconnect_generic_08c5ed68-34e1-4c7c-b9fb-1b4365c00679.png?v=1765369956","url":"https:\/\/www.ampstate.com\/products\/u-3a-310a-switch","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}