{"product_id":"square-d-h323n-disconnect-switch-9","title":"Square D H323N - 100A, 3-Pole, Heavy Duty Fused Safety Switch","description":"\u003cdiv\u003e\n\u003cp\u003eThe Square D H323N 100A 3-Pole Heavy Duty Fused Safety Switch is engineered for industrial and commercial environments where safe electrical isolation is non-negotiable. It supports lockout\/tagout procedures and delivers dependable disconnection under load, ensuring maintenance teams can work confidently with minimized risk and maximum reliability over long service life.\u003c\/p\u003e \u003ch2\u003eKey benefits\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eThree-pole isolation\u003c\/strong\u003e simultaneously disconnects all hot conductors, delivering complete electrical isolation for safer servicing.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003e100A rating\u003c\/strong\u003e accommodates a wide range of medium-duty to heavy-duty circuits common in manufacturing floors, commercial facilities, and utility rooms.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eHeavy-duty fused design\u003c\/strong\u003e provides robust overcurrent protection and reliable interruption when faults occur, helping protect equipment and wiring downstream.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eLockout\/Tagout ready\u003c\/strong\u003e compatible construction supports standard safety procedures, enabling technicians to secure a circuit during maintenance.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eDurable construction\u003c\/strong\u003e built to withstand demanding environments, delivering long-term durability and dependable performance in everyday operations.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eIdeal applications\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003eManufacturing lines, machine bays, and production equipment where safe power isolation is essential during service.\u003c\/li\u003e \u003cli\u003eCommercial electrical rooms and distribution points requiring reliable disconnection under load.\u003c\/li\u003e \u003cli\u003ePanel isolation for routine maintenance, testing, or emergency shutdown procedures.\u003c\/li\u003e \u003cli\u003eIndustrial environments where consistent performance and durable hardware are priorities.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eHow it works\u003c\/h2\u003e\n\u003cp\u003eThe H323N houses robust fusing within a three-pole enclosure to provide both overcurrent protection and a controlled means of disconnecting power. When maintenance is needed, technicians can apply lockout\/tagout to the switch to ensure all sources remain isolated. The combination of fused protection and a dedicated isolation path means you can safely de-energize equipment even under load conditions, reducing the risk of arc flash or unintended re-energization.\u003c\/p\u003e \u003ch2\u003eKey specifications\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eAmperage Rating:\u003c\/strong\u003e 100A\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eNumber of Poles:\u003c\/strong\u003e 3-Pole\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Heavy Duty Fused Safety Switch\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Square D\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eModel:\u003c\/strong\u003e H323N\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003ePractical tips and considerations\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003ePlan maintenance work around the switch’s three-pole isolation to ensure all live conductors are safely disconnected.\u003c\/li\u003e \u003cli\u003eVerify lockout\/tagout procedure compatibility and train staff to apply tags and locks before servicing any equipment connected through the switch.\u003c\/li\u003e \u003cli\u003eStore and replace fuses according to your facility’s standard maintenance schedule to maintain optimal protection levels.\u003c\/li\u003e \u003cli\u003eWhen upgrading or integrating into a new distribution scheme, confirm that 100A capacity aligns with the connected load and downstream wiring).\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eWhy choose the Square D H323N\u003c\/h2\u003e\n\u003cp\u003eFor facilities that demand trustworthy electrical isolation, durable construction, and compliant safety procedures, the Square D H323N delivers a proven combination of performance and reliability. Its 3-pole, 100A fused design provides not only immediate disconnection when needed but also ongoing protection for downstream equipment, reducing downtime and safeguarding personnel during routine maintenance and servicing.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Amp-State","offers":[{"title":"Default Title","offer_id":46383778496674,"sku":"H323N","price":710.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/disconnect_switches_generic_9967d43c-16a0-4372-8261-17d463940251.png?v=1765254235","url":"https:\/\/www.ampstate.com\/products\/square-d-h323n-disconnect-switch-9","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}