{"product_id":"square-d-h321ds-disconnect-switch","title":"Square D H321DS - 30A, 240V, 3-Pole, Fused Disconnect Switch","description":"\u003cdiv\u003e\n\u003cp\u003eThe Square D H321DS is a rugged 30A, 240V, 3‑Pole Fused Disconnect Switch designed for industrial and commercial environments where safe, reliable electrical isolation is non‑negotiable. Its three‑pole configuration ensures full phase disconnection, making lockout\/tagout procedures straightforward and dependable during maintenance and service work.\u003c\/p\u003e \u003ch2\u003eWhy the H321DS stands out\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003eThree‑pole design for complete isolation of all phases in 3‑phase systems, reducing the risk of partial energization.\u003c\/li\u003e \u003cli\u003eFused protection delivers reliable overcurrent protection and clean disconnection under load, helping protect downstream equipment and personnel.\u003c\/li\u003e \u003cli\u003eClear alignment with lockout\/tagout practices, supporting safe maintenance workflows and compliance with safety protocols.\u003c\/li\u003e \u003cli\u003eRobust, industrial‑grade construction built to endure demanding operating environments over the long term.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eIdeal applications\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003eIndustrial equipment and motor circuits where a dedicated disconnect is required for service and maintenance.\u003c\/li\u003e \u003cli\u003eCommercial facilities with 3‑phase power distribution that demand reliable isolation to meet safety standards.\u003c\/li\u003e \u003cli\u003eElectrical panels and service enclosures that require a predictable, fuse‑protected disconnect option.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eSpecifications at a glance\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003eAmperage rating: 30A\u003c\/li\u003e \u003cli\u003eVoltage rating: 240V\u003c\/li\u003e \u003cli\u003eNumber of poles: 3‑Pole\u003c\/li\u003e \u003cli\u003eProduct type: Fused Disconnect Switch\u003c\/li\u003e \u003cli\u003eBrand: Square D\u003c\/li\u003e \u003cli\u003eModel: H321DS\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003ePractical guidance for use\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003ePlan lockout\/tagout procedures around the H321DS to maximize crew safety during maintenance windows.\u003c\/li\u003e \u003cli\u003eEnsure compatible fuses are installed to maintain intended protection levels and system coordination.\u003c\/li\u003e \u003cli\u003eIncorporate alongside other safety controls in your electrical distribution strategy to enhance overall protection of personnel and equipment.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eWho benefits from this disconnect\u003c\/h2\u003e\n\u003cp\u003eElectrical engineers, plant technicians, and maintenance teams working with 3‑phase equipment will appreciate the H321DS for its clear isolation capability, reliable fused protection, and compatibility with industry safety practices. If your setup operates on 240V\/3‑phase systems and requires a dedicated, fuse‑protected disconnect, the Square D H321DS offers a precise fit with durable, long‑term performance.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Amp-State","offers":[{"title":"Default Title","offer_id":46383412543650,"sku":"H321DS","price":810.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/disconnect_switches_generic_dd7affbd-26e6-4b75-ae86-bb503cc588ca.png?v=1765248298","url":"https:\/\/www.ampstate.com\/products\/square-d-h321ds-disconnect-switch","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}