{"product_id":"square-d-h321nds-disconnect-switch","title":"Square D H321NDS - 30A, 240V, 3-Pole, Fused Disconnect Switch","description":"\u003cdiv\u003e\n\u003cp\u003eMeet the Square D H321NDS 30A, 240V, 3-Pole Fused Disconnect Switch — a purpose-built solution for safe, reliable electrical isolation in demanding industrial and commercial environments. Crafted to support proper lockout\/tagout procedures, it ensures a clean, dependable disconnection under load, helping maintenance and operations teams work more safely and efficiently.\u003c\/p\u003e \u003cp\u003eDesigned for real-world reliability, the H321NDS uses a fused disconnect design to provide immediate overcurrent protection and controlled interruption. This means you can isolate circuits with confidence, minimize arc energy, and protect downstream equipment during servicing or fault conditions. Built to endure, it delivers long-term durability that stays consistent through years of heavy use.\u003c\/p\u003e \u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eAmperage rating:\u003c\/strong\u003e 30 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\u003eEnclosure rating:\u003c\/strong\u003e NEMA 4X (weatherproof and corrosion-resistant) for rugged indoor or outdoor environments\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eProduct type:\u003c\/strong\u003e Fused Disconnect 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 H321NDS\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003ePractical advantages in the field:\u003c\/p\u003e \u003cul\u003e \u003cli\u003eTrue 3-phase isolation by simultaneously disconnecting all hot conductors, preventing partial energization during maintenance on motors, pumps, conveyors, and other heavy equipment.\u003c\/li\u003e \u003cli\u003eFused protection adds a layer of safety and reliability, helping protect both personnel and downstream components during switching actions.\u003c\/li\u003e \u003cli\u003eNEMA 4X enclosure is designed for challenging environments—resistant to moisture, dust, and corrosive exposure—making it suitable for indoor facilities and outdoor installations alike.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eIdeal applications include industrial facilities with three-phase motors and automated equipment, manufacturing lines, water treatment and processing plants, HVAC systems, and any setup requiring a rugged, code-compliant service disconnect point. The Square D H321NDS is the smart choice when safety, reliability, and durability matter as much as the disconnect itself.\u003c\/p\u003e \u003cp\u003eTo get the most from this switch, pair it with appropriate fuses and plan a convenient, secure location that aligns with lockout\/tagout procedures. This ensures quick, safe isolation during maintenance while minimizing downtime and safeguarding your equipment.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Amp-State","offers":[{"title":"Default Title","offer_id":46383521071266,"sku":"H321NDS","price":1510.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/disconnect_switches_generic_c5d37923-a495-4c74-9beb-299470a34a0a.png?v=1765249924","url":"https:\/\/www.ampstate.com\/products\/square-d-h321nds-disconnect-switch","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}