{"id":5845,"date":"2026-03-30T16:56:29","date_gmt":"2026-03-30T08:56:29","guid":{"rendered":"https:\/\/atfits.com\/?post_type=product&p=5845"},"modified":"2026-03-30T16:56:29","modified_gmt":"2026-03-30T08:56:29","slug":"siemens-3na3-820-fuse-50a-500v-nh000-3na3820","status":"publish","type":"product","link":"https:\/\/atfits.com\/es\/producto\/siemens-3na3-820-fuse-50a-500v-nh000-3na3820\/","title":{"rendered":"Siemens 3NA3 820 FUSE 50A 500V NH000 3NA3820"},"content":{"rendered":"

Siemens 3NA3820 LV HRC Fuse Element (50A, 500V, NH000)<\/h1>\n
<\/div>\n

Product Overview<\/h2>\n
<\/div>\n
The Siemens 3NA3820 is a high-performance, low-voltage (LV) high-rupturing-capacity (HRC) fuse link belonging to the Sentron™ 3NA3 series. Designed for general-purpose circuit protection, it conforms to the NH000 miniature size standard and is classified as a gG-type fuse, making it ideal for safeguarding cables, lines, and electrical equipment in industrial, commercial, and power distribution systems. This fuse provides reliable overcurrent and short-circuit protection with a compact form factor, suitable for installation in standard NH fuse bases and switchgear assemblies.<\/div>\n
<\/div>\n

Main Functions<\/h2>\n
<\/div>\n
    \n
  1. Overcurrent & Short-Circuit Protection<\/strong>: Safeguards electrical circuits, cables, motors, transformers, and distribution equipment from damage caused by excessive current or short circuits.<\/li>\n
  2. Visual Fault Indication<\/strong>: Equipped with a front-mounted red indicator that clearly signals when the fuse has operated (blown), enabling quick visual inspection and maintenance.<\/li>\n
  3. Safe Replacement<\/strong>: Features live grip lugs for safe handling and installation, even under live conditions, enhancing operator safety.<\/li>\n
  4. Selective Coordination<\/strong>: Supports selective protection schemes in power distribution networks, minimizing outage areas by isolating only the faulty circuit.<\/li>\n
  5. Dual Voltage Compatibility<\/strong>: Operates effectively in both AC (up to 500V) and DC (up to 250V) systems, offering broad application flexibility.<\/li>\n<\/ol>\n
    <\/div>\n

    Technical Characteristics<\/h2>\n
    <\/div>\n
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    \n
    \u8868\u683c<\/div>\n
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    <\/div>\n
    <\/div>\n
    <\/div>\n<\/div>\n<\/div>\n
    \n
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    \n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
    Parameter<\/th>\nSpecification<\/th>\n<\/tr>\n<\/thead>\n
    Manufacturer<\/td>\nSiemens (Sentron™ Series)<\/td>\n<\/tr>\n
    Part Number<\/td>\n3NA3820<\/td>\n<\/tr>\n
    Fuse Type<\/td>\nLV HRC Fuse Element<\/td>\n<\/tr>\n
    Rated Current (In)<\/td>\n50 A<\/td>\n<\/tr>\n
    Rated Voltage (Un)<\/td>\n500 V AC \/ 250 V DC<\/td>\n<\/tr>\n
    Fuse Size<\/td>\nNH000 (per DIN EN 60269-1)<\/td>\n<\/tr>\n
    Operating Class<\/td>\ngG (General Purpose, Cable & Line Protection)<\/td>\n<\/tr>\n
    Breaking Capacity<\/td>\n120 kA (High Rupture Capacity)<\/td>\n<\/tr>\n
    Contact Type<\/td>\nCentered blade contacts, silver-plated for corrosion resistance<\/td>\n<\/tr>\n
    Indicator<\/td>\nFront-face visual trip indicator (red)<\/td>\n<\/tr>\n
    Mounting<\/td>\nNon-insulated live grip lugs<\/td>\n<\/tr>\n
    Protection Class<\/td>\nIP20 (with connected conductors)<\/td>\n<\/tr>\n
    Operating Temperature<\/td>\n-20\u00b0C to +50\u00b0C<\/td>\n<\/tr>\n
    Material<\/td>\nCeramic body, copper\/silver-plated contacts<\/td>\n<\/tr>\n
    Compliance<\/td>\nIEC 60269, EN 60269, VDE 0636, CSA 22.2<\/td>\n<\/tr>\n
    Product Lifecycle<\/td>\nActive (PM300)<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n
    <\/div>\n

    Product Dimensions<\/h2>\n
    <\/div>\n
      \n
    • Overall Length<\/strong>: 80 mm<\/li>\n
    • Body Length<\/strong>: 54 mm<\/li>\n
    • Body Width<\/strong>: 21 mm<\/li>\n
    • Packaging Dimensions (Single Unit)<\/strong>: 65.00 \u00d7 84.00 \u00d7 62.00 mm<\/li>\n<\/ul>\n
      <\/div>\n

      Weight<\/h2>\n
      <\/div>\n
        \n
      • Net Weight<\/strong>: 0.130 kg<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

        Siemens 3NA3820 LV HRC Fuse Element (50A, 500V, NH000) Product Overview The Siemens 3NA3820 is a high-performance, low-voltage (LV) high-rupturing-capacity<\/p>","protected":false},"featured_media":5846,"comment_status":"open","ping_status":"closed","template":"","meta":[],"product_brand":[],"product_cat":[111],"product_tag":[],"class_list":{"0":"post-5845","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-siemens","8":"first","9":"instock","10":"shipping-taxable","11":"product-type-simple"},"yoast_head":"\nSiemens 3NA3 820 FUSE 50A 500V NH000 3NA3820 - Autofits<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/atfits.com\/es\/producto\/siemens-3na3-820-fuse-50a-500v-nh000-3na3820\/\" \/>\n<meta property=\"og:locale\" content=\"es_ES\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Siemens 3NA3 820 FUSE 50A 500V NH000 3NA3820 - 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