{"product_id":"nan-nan-disconnect-switch-8","title":"Fused Disconnect Switch - 400A, 3-Pole, Fused Disconnect Switch","description":"\u003cdiv\u003e\n\u003cp\u003eMeet the Fused Disconnect Switch—400A, 3-Pole—a robust solution designed for industrial and commercial environments where safe, reliable electrical isolation is non-negotiable. This unit combines dependable disconnection under load with built-in fuse protection, delivering long-term durability and straightforward lockout\/tagout (LOTO) compliance for maintenance teams and operators.\u003c\/p\u003e \u003ch2\u003eThree-Phase isolation with fused protection\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003e3-Pole design\u003c\/strong\u003e: isolates all three phases at once, ensuring complete de-energization of motor feeders, conveyors, or distribution lines.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003e400A rating\u003c\/strong\u003e: built to handle heavy-load applications common in manufacturing, pumping stations, and large HVAC installations without compromising safety.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eFused protection\u003c\/strong\u003e: the fuse element provides rapid fault interruption, helping limit arc energy and protect downstream equipment during faults or overloads.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eSafety and maintenance you can trust\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eLockout\/Tagout readiness\u003c\/strong\u003e: designed to support safe maintenance practices with accessible locking points and clear isolation workflows.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eSafe disconnection under load\u003c\/strong\u003e: engineered to reliably interrupt power even when circuits are energized, reducing risk during service work.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eDurable industrial construction\u003c\/strong\u003e: built to withstand demanding environments, resisting wear and delivering consistent performance over time.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eIdeal use cases and applications\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003eMotor feeders for pumps, fans, and conveyors in manufacturing facilities.\u003c\/li\u003e \u003cli\u003ePower isolation for large HVAC units, compressors, and other high-current equipment.\u003c\/li\u003e \u003cli\u003ePrimary disconnects in switchgear assemblies where quick, controlled shutdown is required for safety and maintenance.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eHow this fused disconnect compares to alternatives\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003eUnlike simple disconnect switches, this unit combines mechanical isolation with fuse-based protection, offering immediate fault interruption and downstream protection for equipment and wiring.\u003c\/li\u003e \u003cli\u003eIts 3-pole configuration ensures synchronized shutdown across all phases, reducing differential voltage risks and balancing safety during maintenance.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003ePractical tips for installation and operation\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003ePair with the correct fuse ratings recommended for your load profiles and motor starting currents, and replace fuses promptly when blown.\u003c\/li\u003e \u003cli\u003eIntegrate with your facility’s lockout\/tagout program—record padlock locations and ensure all maintenance personnel are trained on proper isolation procedures.\u003c\/li\u003e \u003cli\u003eLabel clearly at the point of installation and keep spare fuses on hand near the disconnect for quick service responses.\u003c\/li\u003e \u003cli\u003eSchedule periodic inspections of the enclosure and terminals to verify tight connections and intact insulation in harsh environments.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eChoose the Fused Disconnect Switch—400A, 3-Pole for a reliable, code-aware solution that protects people, equipment, and processes while simplifying maintenance routines in demanding industrial settings.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Amp-State","offers":[{"title":"Default Title","offer_id":46383405236386,"sku":null,"price":1410.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/fused-disconnect-switch-400a-3-pole-729.webp?v=1788789434","url":"https:\/\/www.ampstate.com\/products\/nan-nan-disconnect-switch-8","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}