Siemens 3NA3 820 FUSE 50A 500V NH000 3NA3820
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Siemens 3NA3820 LV HRC Fuse Element (50A, 500V, NH000)
Product Overview
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.
Main Functions
- Overcurrent & Short-Circuit Protection: Safeguards electrical circuits, cables, motors, transformers, and distribution equipment from damage caused by excessive current or short circuits.
- Visual Fault Indication: Equipped with a front-mounted red indicator that clearly signals when the fuse has operated (blown), enabling quick visual inspection and maintenance.
- Safe Replacement: Features live grip lugs for safe handling and installation, even under live conditions, enhancing operator safety.
- Selective Coordination: Supports selective protection schemes in power distribution networks, minimizing outage areas by isolating only the faulty circuit.
- Dual Voltage Compatibility: Operates effectively in both AC (up to 500V) and DC (up to 250V) systems, offering broad application flexibility.
Technical Characteristics
表格
| Parameter | Specification |
|---|---|
| Manufacturer | Siemens (Sentron™ Series) |
| Part Number | 3NA3820 |
| Fuse Type | LV HRC Fuse Element |
| Rated Current (In) | 50 A |
| Rated Voltage (Un) | 500 V AC / 250 V DC |
| Fuse Size | NH000 (per DIN EN 60269-1) |
| Operating Class | gG (General Purpose, Cable & Line Protection) |
| Breaking Capacity | 120 kA (High Rupture Capacity) |
| Contact Type | Centered blade contacts, silver-plated for corrosion resistance |
| Indicator | Front-face visual trip indicator (red) |
| Mounting | Non-insulated live grip lugs |
| Protection Class | IP20 (with connected conductors) |
| Operating Temperature | -20°C to +50°C |
| Material | Ceramic body, copper/silver-plated contacts |
| Compliance | IEC 60269, EN 60269, VDE 0636, CSA 22.2 |
| Product Lifecycle | Active (PM300) |
Product Dimensions
- Overall Length: 80 mm
- Body Length: 54 mm
- Body Width: 21 mm
- Packaging Dimensions (Single Unit): 65.00 × 84.00 × 62.00 mm
Weight
- Net Weight: 0.130 kg
WHO WE ARE
Sobre nosotros
Located in Kunshan, China, Atifts Technology Co., Ltd. is a well-known enterprise specializing in electronic components distribution. We specialize in the sales of global brands of industrial automation components, with a wealth of experience in foreign product agents, and many of the world's leading manufacturers such as Keens, Schneider, SMC, ABB, Siemens, and other world-renowned manufacturers to establish a long-term and stable relations of cooperation.
Atifts Technology Co., Ltd. @ 2024
Over the years, we have always adhered to the "pioneering, pragmatic, standardized, innovative" management philosophy, and constantly promote the close integration of products and market demand. We firmly believe that only by constantly exploring new market areas, doing a good job in every detail, standardizing business processes, and continuously innovating products and services can we ensure that our products are more adaptable to market changes and meet the diversified needs of our customers.
Since the founding of the company, we have always adhered to the core concept of "survival by quality", and are committed to providing customers with high-quality electronic components. At the same time, we take specialized R & D manufacturing as the goal, market-oriented development strategy to ensure that our products are always in the forefront of the industry.
With excellent product quality, professional technical service and good market reputation, Kunshan Autofits Technology Co.,Ltd. has won the trust and support of our customers. We look forward to working with more partners hand in hand, to achieve long-term win-win relationship, and jointly promote the prosperity of the electronic components industry.
Where is your company located?
We are located next to Shanghai, the largest city in China, and Kunshan, the first economic county in China. With convenient transportation and developed logistics, it provides a good geographical advantage for our electronic components sales business.
What types of electronic components does your company mainly sell?
We are committed to providing many types and brands of electronic components, including but not limited to Sensors, Switches & Relays, Connectors, Circuit Protectio, Power Supplier & Cable, etc. We have established relationships with many well-known electronic component manufacturers. We have established long-term and stable relationships with many well-known electronic component manufacturers to ensure that the products we sell are of reliable quality and reasonable price.
What are the prices of your products?
Our product prices vary according to market conditions and product models. We are committed to providing high quality electronic components at fair and reasonable prices, and offer our customers a variety of incentives and flexible purchasing methods.
How to purchase your electronic components?
You can contact our customer service staff directly by phone, whatsapp, email, our official website. We support a variety of payment methods, and provide you with fast and safe logistics and distribution services.
How do you guarantee the quality of your products?
We attach great importance to product quality, all the electronic components we sell come from regular channels and undergo strict quality testing. We promise to provide customers with high-quality electronic components, and provide perfect after-sales service to ensure that customers have no worries in the process of use.
If I am not satisfied with the electronic components I purchased, can I return them?
We provide perfect after-sales service, if you are not satisfied with the purchased electronic components, you can return or exchange them within the specified time. Please refer to our official website or consult our customer service staff for the specific return policy and process.
Can your company provide technical support and solutions?
We have a professional technical team that can provide technical support and solutions for our customers. Whether you encounter any problems in choosing or using the products, we will be happy to answer your questions and provide professional technical support.
How to contact your customer service?
You can contact our customer service personnel through the online customer service system on our official website, telephone, e-mail or social media platforms. Our customer service staff will provide you with professional services and answer any questions you may have.
Does your company often organize promotional activities?
In order to give back to our customers, we will organize various promotions from time to time, including discounts, full reductions, giveaways and so on. Please keep an eye on our official website or social media platforms to stay up-to-date with the latest promotions.
