{"product_id":"square-d-d221nrb-30a-fusible-safety-switch","title":"Square D D221NRB - 30A, Fusible, Safety Switch","description":"\u003cdiv\u003e\n\u003cp\u003eMeet the Square D \u003cstrong\u003eD221NRB\u003c\/strong\u003e 30A Fusible Safety Switch—a rugged isolation device designed to deliver reliable on\/off control and precise overcurrent protection in demanding industrial and commercial environments. This fusible safety switch combines compact form with straightforward maintenance, making it a dependable centerpiece for your electrical protection scheme.\u003c\/p\u003e \u003cul\u003e \u003cli\u003e\n\u003cstrong\u003e30A fusible safety switch\u003c\/strong\u003e for targeted protection of motor circuits and branch lines\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eFusible design\u003c\/strong\u003e provides selective protection and quick fuse replacement to minimize downtime\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOn\/off isolation\u003c\/strong\u003e to safely disconnect power for service, maintenance, or troubleshooting\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eCompact, maintainable construction\u003c\/strong\u003e designed to fit constrained spaces and enable straightforward fuse changes\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eIdeal applications\u003c\/strong\u003e include motor disconnects, panelboards, and branch circuit protection where space and accessibility matter\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eThis safety switch is purpose-built for environments where reliable isolation and clear fault containment are essential. With a dedicated fusible path, it helps limit fault energy and protect downstream equipment, while its compact footprint makes it easier to integrate into existing electrical distributions without sacrificing performance.\u003c\/p\u003e \u003cp\u003eWho benefits most: facilities with motor-driven loads, compact control panels, or distribution panels that require a maintainable, fusible disconnect. If you’re upgrading from non-fusible disconnects, the D221NRB offers a straightforward path to improved protection and serviceability—reducing downtime and helping you meet safety and protection standards without reshaping your switchgear lineup.\u003c\/p\u003e \u003cp\u003ePractical tips for use: pair this switch with the appropriate 30A fuse for your load profile, plan fuse replacement as part of regular maintenance, and ensure the circuit is de-energized before servicing. Its fusible design makes fuse status a key indicator of protection health, so periodic inspection helps you catch issues before they affect operations.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Amp-State","offers":[{"title":"Default","offer_id":46390412050594,"sku":"D221NRB","price":289.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/fusible_disconnect_generic_c7b5badb-9a66-4920-a61f-f33a9d94c822.png?v=1765370555","url":"https:\/\/www.ampstate.com\/products\/square-d-d221nrb-30a-fusible-safety-switch","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}