{"product_id":"square-d-h221nrb-30a-240v-1-phase-heavy-duty-safety-switch","title":"Square D H221NRB - 30A, 240V, 1-Phase, Heavy-Duty, Safety Switch","description":"\u003cdiv\u003e\n\u003cp\u003eIntroducing the Square D H221NRB — a 30A, 240V, 1-Phase heavy-duty safety switch crafted for dependable on\/off isolation and solid overcurrent protection in challenging industrial and commercial settings. Built to perform in demanding environments, this switch provides a reliable disconnect point for motors, equipment, and branch circuits.\u003c\/p\u003e \u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eModel\u003c\/strong\u003e: H221NRB\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eAmperage\u003c\/strong\u003e: 30A\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVoltage\u003c\/strong\u003e: 240V\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePhase\u003c\/strong\u003e: 1-Phase\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eDuty\u003c\/strong\u003e: Heavy-Duty\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eApplication\u003c\/strong\u003e: Ideal for motor disconnects, panelboards, and branch circuit protection\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eWhat makes the Square D H221NRB unique\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eRobust, for-demand environments\u003c\/strong\u003e: Designed to withstand continuous on\/off cycling and harsh industrial conditions, delivering dependable isolation when you need it most.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eCompact yet maintainable\u003c\/strong\u003e: A space-efficient fusible (maintainable) switch that fits tight panels without compromising ease of service or future maintenance.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eClear isolation and protection\u003c\/strong\u003e: Provides a reliable disconnect and overcurrent protection path for single-phase loads, helping keep distribution equipment and personnel safer during servicing.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVersatile integration\u003c\/strong\u003e: Suited for motor control centers, panelboards, and branch circuits where a compact protective switch is required without sacrificing performance.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eIdeal use cases\u003c\/h3\u003e\n\u003cp\u003eThe Square D H221NRB is especially well-suited for facilities that run single-phase machinery or equipment at 240V and need a reliable, easy-to-operate safety switch. Use it as a motor disconnect in manufacturing lines, a quick-isolation switch for HVAC and pumps, or as a protective interlock point in electrical panels where space is at a premium.\u003c\/p\u003e \u003ch3\u003eHow it solves real problems\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eSimple, safe maintenance\u003c\/strong\u003e: The maintainable design means technicians can service circuits without exposing the entire panel, reducing downtime during repairs or inspections.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eClear fault isolation\u003c\/strong\u003e: Immediate disconnection capability minimizes the risk of arc flash and equipment damage during troubleshooting.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOperational efficiency\u003c\/strong\u003e: A dedicated 30A, 240V single-phase switch streamlines wiring plans and reduces the need for multiple protective devices in smaller motor circuits.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003ePractical tips for deployment\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003ePair the H221NRB with appropriate enclosures and wiring that support 240V single-phase circuits to maintain safety and accessibility.\u003c\/li\u003e \u003cli\u003ePlan for maintenance accessibility so technicians can operate the switch and perform routine checks without removing other components.\u003c\/li\u003e \u003cli\u003eUse as part of a broader protection strategy in panel layouts where motor loads and branch circuits require a compact, reliable disconnect point.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eFor professionals designing or upgrading electrical systems in industrial or commercial spaces, the Square D H221NRB offers a dependable blend of rugged duty, compact form, and straightforward maintenance. This is the safety switch you turn to when you need precise isolation, solid protection, and practical serviceability in a single-phase, 240V configuration.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Amp-State","offers":[{"title":"Default","offer_id":46390375481506,"sku":"H221NRB","price":429.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/square-d-h221nrb-30a-240v-1-phase-heavy-duty-safety-switch-593.webp?v=1788869954","url":"https:\/\/www.ampstate.com\/products\/square-d-h221nrb-30a-240v-1-phase-heavy-duty-safety-switch","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}