{"product_id":"square-d-du323-disconnect-switch-4","title":"Square D DU323 - 100A, 240V, 3-Pole, Safety Switch","description":"\u003cdiv\u003e\n\u003ch2\u003eOverview\u003c\/h2\u003e\n\u003cp\u003eThe Square D \u003cstrong\u003eDU323\u003c\/strong\u003e Safety Switch is a purpose-built disconnect designed for industrial and commercial environments where safe, reliable electrical isolation is non-negotiable. With a \u003cstrong\u003e100 A\u003c\/strong\u003e rating operating at \u003cstrong\u003e240 V\u003c\/strong\u003e and a true \u003cstrong\u003e3-pole\u003c\/strong\u003e design, this switch ensures complete isolation of all three phases, enabling safer maintenance, servicing, and startup procedures.\u003c\/p\u003e \u003ch3\u003eWhy the DU323 stands out\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eComprehensive 3-phase isolation\u003c\/strong\u003e: A dedicated 3-pole configuration guarantees full disconnection of each phase, reducing the risk of partial energization during servicing.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eLockout\/Tagout readiness\u003c\/strong\u003e: Designed to support proper lockout\/tagout procedures, helping teams meet safety requirements and minimize downtime during maintenance.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eLoad-safe switching\u003c\/strong\u003e: Engineered to deliver dependable disconnection when circuits are energized, providing reliable protection for personnel and equipment alike.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eDurable industrial design\u003c\/strong\u003e: Built to withstand the rigors of busy facilities, ensuring long-term performance in demanding environments.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eStraightforward integration\u003c\/strong\u003e: A practical solution for control panels, machine rooms, and service entrances where a compact, dependable safety switch is needed.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eIdeal applications\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eIndustrial manufacturing lines requiring reliable isolation for routine maintenance and emergency servicing.\u003c\/li\u003e \u003cli\u003eCommercial facilities that rely on safe, code-compliant energy disconnection in electrical rooms and panels.\u003c\/li\u003e \u003cli\u003eControl panels and Electrical Distribution Systems (EDS) where three-phase protection is essential.\u003c\/li\u003e \u003cli\u003eAnywhere you need a robust, easy-to-operate safety switch that supports lockout\/tagout environments.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eKey specifications\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eAmperage rating:\u003c\/strong\u003e 100 A\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVoltage rating:\u003c\/strong\u003e 240 V\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 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 DU323\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003ePractical benefits and use cases\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eSafer maintenance windows\u003c\/strong\u003e: By providing a definitive isolation point, the DU323 minimizes the chance of accidental re-energization during service work.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eAligned with 3-phase systems\u003c\/strong\u003e: The 3-pole configuration is ideal for three-phase equipment, ensuring all live conductors are isolated simultaneously.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eConsistent operation over time\u003c\/strong\u003e: Built for durability in busy facilities, reducing the need for frequent replacements or adjustments.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eClear safety workflow\u003c\/strong\u003e: Supports a structured shutdown-and-restore process, helping teams execute lockout\/tagout procedures with confidence.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eInstallation and best-practice tips\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eConfirm compatibility with your panel cutout and mounting provisions before installation.\u003c\/li\u003e \u003cli\u003eFollow manufacturer guidance for wiring terminals and enclosure grounding to ensure optimal performance.\u003c\/li\u003e \u003cli\u003eCoordinate with your facility’s lockout\/tagout program to maximize safety during servicing.\u003c\/li\u003e \u003cli\u003eDocument the switch location in your maintenance logs to streamline future outages and resets.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"Amp-State","offers":[{"title":"Default Title","offer_id":46383622946978,"sku":"DU323","price":810.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/square-d-du323-100a-240v-3-pole-safety-switch-311.webp?v=1788811566","url":"https:\/\/www.ampstate.com\/products\/square-d-du323-disconnect-switch-4","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}