{"product_id":"siemens-3np1143-1da20","title":"3NP1143-1DA20","description":"\u003ch2\u003eBuy genuine Siemens 3NP1143-1DA20 today\u003c\/h2\u003e\n\u003cp\u003eThe Siemens 3NP1143-1DA20 fuse switch disconnector is a high-quality industrial component designed for reliable safety monitoring in electrical systems. It features a 3-pole design with NH1 fuse holders and is rated at 250 A, suitable for robust industrial applications. This durable device is engineered for assembly and installation on mounting plates, providing excellent protection and ease of integration into existing electrical panels. With a protection class of IP40 when covered, it ensures safety and longevity even in demanding environments. Its compact dimensions and proven Siemens quality make it a preferred choice among professionals focused on factory control panels and automation systems.\u003c\/p\u003e\n\u003ch2\u003eKey Features of Siemens 3NP1143-1DA20\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eRated operational current of 250 A at 35 °C, supporting up to 690 V AC maximum operating voltage\u003c\/li\u003e\n  \u003cli\u003e3-pole fuse switch disconnector with NH1 fuse size for effective circuit protection\u003c\/li\u003e\n  \u003cli\u003eProtection class IP40 with cover and IP30 without, ensuring safety against dust and accidental contact\u003c\/li\u003e\n  \u003cli\u003eSuitable for mounting plate assembly and floor mounting in both horizontal and vertical positions\u003c\/li\u003e\n  \u003cli\u003eFast and secure box terminal connections facilitate installation and maintenance\u003c\/li\u003e\n  \u003cli\u003eCompact dimensions: 306 mm height, 183.7 mm width, and 116 mm depth\u003c\/li\u003e\n  \u003cli\u003eOperational temperature tolerance with rated current from 250 A down to 233 A at 55 °C\u003c\/li\u003e\n  \u003cli\u003eMaximum permissible let-through current with high-speed activation of 25 kA ensures effective fault clearing\u003c\/li\u003e\n  \u003cli\u003ePower loss is minimized with 8 W per pole without fuse and up to 31 W in running hot conditions\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eExplore Siemens 3NP1143-1DA20 specifications for detailed parameters\u003c\/h2\u003e\n\u003ctable\u003e\n  \u003ctr\u003e\n\u003cth\u003eParameter\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eOperational Current (AC-21 B, 240 V)\u003c\/td\u003e\n\u003ctd\u003e250 A\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eOperational Current (AC-21 B, 500 V)\u003c\/td\u003e\n\u003ctd\u003e200 A\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eOperational Current (DC-23 B, 440 V)\u003c\/td\u003e\n\u003ctd\u003e100 A\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eSurge Voltage Resistance\u003c\/td\u003e\n\u003ctd\u003e8 kV\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eProtection Class (closed with cover)\u003c\/td\u003e\n\u003ctd\u003eIP40\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eMounting\u003c\/td\u003e\n\u003ctd\u003eMounting plate, floor mounting\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eDimensions (H × W × D)\u003c\/td\u003e\n\u003ctd\u003e306 × 183.7 × 116 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e2.924 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch2\u003eApplications \/ Use Case\u003c\/h2\u003e\n\u003cp\u003eThis Siemens 3NP1143-1DA20 is commonly used in industrial automation worldwide. It serves as a critical component in electrical safety and circuit protection within production line systems, factory control panels, and packaging and conveyor operations. Its robust design ensures reliable interruption of power during fault conditions, protecting sensitive equipment and personnel. The device is ideal for machine automation setups needing dependable disconnect and overcurrent protection, helping maintain system uptime and operational safety.\u003c\/p\u003e\n\u003ch2\u003eSee Siemens 3NP1143-1DA20 pricing online through LeadTime.ca for fast worldwide dispatch\u003c\/h2\u003e\n\u003ch2\u003eEvery product on LeadTime.ca is genuine OEM, supplied by trusted distributors, and ready for international delivery.\u003c\/h2\u003e\n\u003cp\u003eOrder now for worldwide delivery.\u003c\/p\u003e\n\u003ch2\u003eRelated Resources\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\u003ca href=\"https:\/\/leadtime.ca\/\"\u003eLeadTime.ca – Industrial Automation Components \u0026amp; Repair Services\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"https:\/\/leadtime.ca\/collections\/siemens\"\u003eBrowse Siemens PLCs, Drives \u0026amp; Automation Parts\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"https:\/\/leadtime.ca\/blogs\/learning-center\/siemens-plc-programming-basics\"\u003eSiemens PLC Programming Basics Guide\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"https:\/\/leadtime.ca\/blogs\/learning-center\/siemens-tia-portal-io-errors\"\u003eHow to Troubleshoot Siemens TIA Portal IO Errors\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"https:\/\/leadtime.ca\/blogs\/learning-center\/siemens-drive-parameter-setup\"\u003eSiemens Drive Parameter Setup Reference\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Siemens","offers":[{"title":"Default Title","offer_id":47796158398763,"sku":null,"price":311.25,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0837\/4671\/7995\/files\/Leadtime_15f9cdc6-e2db-45f9-9d9d-b6add02c4c97.png?v=1723554218","url":"https:\/\/leadtime.ca\/products\/siemens-3np1143-1da20","provider":"LEADTIME","version":"1.0","type":"link"}