{"product_id":"nan-3x400a-disconnect-switch","title":"3X400A - 400A, 3-Pole, Fused Disconnect Switch","description":"\u003cdiv\u003e\n\u003cp\u003e\u003cstrong\u003e3X400A\u003c\/strong\u003e — a high-performance 400A, 3-Pole Fused Disconnect Switch designed for industrial and commercial environments that demand safe, reliable electrical isolation. Built to support proper lockout\/tagout procedures and to deliver dependable disconnection under load, this switch is engineered for long-term durability in demanding settings.\u003c\/p\u003e \u003ch3\u003eWhy the 3X400A stands out\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003e400A rating in a three-pole configuration\u003c\/strong\u003e provides robust isolation for three-phase feeders and large loads, helping you protect both equipment and personnel.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eFused design\u003c\/strong\u003e delivers built-in overcurrent protection, enabling prompt interruption of fault currents and reducing the risk of collateral damage in the event of a fault.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eLockout\/tagout compatibility\u003c\/strong\u003e supports standard safety procedures, making routine maintenance and service work safer and more compliant.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eReliable disconnection under load\u003c\/strong\u003e ensures that circuits can be safely isolated without the unpredictable behavior that can occur with non-fused disconnects.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eDurable construction\u003c\/strong\u003e is tailored for industrial and commercial environments, delivering enduring performance in challenging conditions.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eApplications and use cases\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eService disconnects for large feeders in industrial facilities, warehouses, and manufacturing plants.\u003c\/li\u003e \u003cli\u003eThree-phase isolation points in electrical distribution panels and switchgear during maintenance.\u003c\/li\u003e \u003cli\u003ePrimary isolation for motors, conveyors, and other heavy equipment where safe de-energization is critical.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eSpecifications at a glance\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003e\u003cstrongamperage rating:\u003e 400A\u003c\/strongamperage\u003e\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 Fused Disconnect Switch\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eModel:\u003c\/strong\u003e 3X400A\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003ePractical considerations for buyers\u003c\/h3\u003e\n\u003cp\u003eChoose the 3X400A when you need a dedicated, heavy-duty isolation solution that combines robust current protection with operational safety. It’s an ideal fit for facilities prioritizing maintenance safety, regulatory compliance, and reliable performance for critical electrical feeders. If you’re upgrading existing infrastructure or specifying new installations, this 3-Pole fused disconnect switch provides a clear path to safer, more efficient electrical isolation.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eInvest in the 3X400A today\u003c\/strong\u003e to unlock dependable, safe, and durable electrical isolation for your three-phase systems.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"AmpState","offers":[{"title":"Default Title","offer_id":46383715156130,"sku":"3X400A","price":790.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/disconnect_switches_generic_80886ea1-6d10-4265-a058-d3ce7c29e1d4.png?v=1765252522","url":"https:\/\/www.ampstate.com\/products\/nan-3x400a-disconnect-switch","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}