{"product_id":"siemens-3np1153-1da10-disconnect-switch","title":"Siemens 3NP1153-1DA10 - 400A, 3-Pole, Fused Disconnect Switch","description":"\u003cdiv\u003e\n\u003cp\u003eThe Siemens 3NP1153-1DA10 is a rugged 400A, 3-pole fused disconnect switch engineered for industrial and commercial environments that demand safe, reliable electrical isolation. Built to support proper lockout and tagout procedures, this disconnect delivers a dependable, load-safe disconnection that helps maintenance teams work with confidence—and for the long haul.\u003c\/p\u003e \u003ch2\u003eKey benefits at a glance\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003e400A, 3-pole configuration\u003c\/strong\u003e ensures simultaneous isolation of all three phases, reducing the risk of partial shutdowns or backfeed during service work.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eFused protection\u003c\/strong\u003e provides rapid interruption of fault currents, enhancing electrical safety and system protection in demanding facilities.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eIndustrial-grade durability\u003c\/strong\u003e designed to stand up to the vibrations, dust, and temperature variations common in commercial and manufacturing environments.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eLockout\/Tagout readiness\u003c\/strong\u003e supports standard safety protocols, helping teams secure equipment during maintenance and testing.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eSeamless integration\u003c\/strong\u003e with existing Siemens switchgear and panels, making retrofits or new installations straightforward and reliable.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eWhy this model stands out\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eSiemens reliability\u003c\/strong\u003e backing a purpose-built solution for isolation and overcurrent protection, reducing downtime and service interruptions.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eClear, definitive disconnection\u003c\/strong\u003e during fault conditions and maintenance activities, giving technicians a predictable and safe operating state.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eDesigned for long-term service life\u003c\/strong\u003e in busy facilities where equipment endures regular use, load changes, and routine safety practices.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eIdeal use cases\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003eMain feeders in industrial facilities that require robust isolation before servicing large motors or electrical gear.\u003c\/li\u003e \u003cli\u003eCommercial electrical distributions where dependable disconnection under load is critical for safety and uptime.\u003c\/li\u003e \u003cli\u003eMaintenance points within motor control centers (MCCs) and power distribution setups that depend on reliable LOTO procedures.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eInstallation and safety considerations\u003c\/h2\u003e\n\u003cp\u003eDesigned to integrate with standard electrical infrastructure, the 3NP1153-1DA10 supports clear isolation of all conductors in the protected circuit. Use it as part of a comprehensive safety program that includes documented lockout\/tagout procedures, regular inspection of disconnect integrity, and routine fuse condition checks to maintain optimal performance.\u003c\/p\u003e \u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eAmperage rating:\u003c\/strong\u003e 400A\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\u003eBrand:\u003c\/strong\u003e Siemens\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eModel:\u003c\/strong\u003e 3NP1153-1DA10\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"Amp-State","offers":[{"title":"Default Title","offer_id":46383525462178,"sku":"3NP1153-1DA10","price":1410.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/disconnect_switches_generic_f58730f1-d87f-4e24-86d3-9953afd8bc02.png?v=1765249980","url":"https:\/\/www.ampstate.com\/products\/siemens-3np1153-1da10-disconnect-switch","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}