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Got hold of Sime for a Carrier card for a chiller. Machine down in a factory. Received the new card in express time machine and plant now up and running fantastic service form Sime
1 month ago
3NE8721-1
Siemens 3NE8721-1 available at EU Automation. Get in touch today for a quick price.
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Full 12-month warranty
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What happens next?
1. Email confirmation
You will get an email confirming that we have received your enquiry.
2. Dedicated Account Manager
One of our team will be in touch to confirm your part(s) specification and condition.
3. Your quote
You will receive a comprehensive quote tailored to your specific needs.
The Siemens 3NE8721-1 is a high-performance fuse link designed for demanding electrical applications. This aR class fuse link is rated at 100 A and is suitable for both AC and DC systems, with a maximum operating voltage of 690 V AC and 440 V DC. Engineered for reliability, it features bolt-on links and a front indicator for easy identification and installation. The fuse link is constructed to operate efficiently under varying load conditions, with a power loss of 19 W, ensuring optimal performance in high-stress environments. Its compact design, measuring 40 x 21 x 100 mm, allows for versatile mounting options, preferably in a vertical position. The Siemens 3NE8721-1 is built to withstand ambient temperatures ranging from -20 °C to 50 °C and can operate effectively in environments with up to 95% relative humidity. This robust and durable fuse link is an ideal choice for protecting sensitive semiconductor devices and ensuring the safety and efficiency of your electrical systems.
| Specification | Description |
|---|---|
| Part Number | 3NE8721-1 |
| Manufacturer | Siemens |
| Product Brand Name | SENTRON |
| Product Designation | SITOR Fuse Link |
| Design of the Product | With bolt-on links |
| Identification Indicator | Front indicator |
| Switching Contact Design | With M8 bolt-on links, silver-plated |
| Fuse Link Design | SITOR, LV HRC design |
| Size of Fuse System | NH000 according to DIN EN 60269-1 |
| Operating Class | aR |
| Varying Load Factor | 0.95 |
| Type of Voltage | AC/DC |
| Operating Current | 100 A at AC |
| Supply Voltage | 690 V at AC, 440 V at DC |
| Switching Capacity | 200 kA according to IEC 60947-2 at AC, 50 kA at DC |
| Power Loss | 19 W |
| Mounting Position | Any, preferably vertical |
| Ambient Temperature | Minimum -20 °C, Maximum 50 °C |
| Environmental Category | -20 to +50 at 95% relative humidity |
| Product Description | The Siemens 3NE8721-1 is a high-performance SITOR fuse link designed for reliable protection in electrical systems. It features bolt-on links and a front indicator for easy identification. Suitable for both AC and DC applications, this fuse link ensures optimal performance with a rated current of 100 A and a supply voltage of up to 690 V AC. Its robust design and high switching capacity make it ideal for demanding environments. |
What is the primary function of this fuse link?
The primary function of the Siemens 3NE8721-1 fuse link is to protect electrical circuits by interrupting excessive current flow, thereby preventing damage to equipment.
What are the key specifications of this fuse link?
The Siemens 3NE8721-1 fuse link is rated for 100 A, with a power loss of 19 W. It operates at a voltage of 690 V AC and 440 V DC, and has a switching capacity of 200 kA at AC and 50 kA at DC.
What type of mounting does this fuse link support?
This fuse link supports vertical mounting, although it can be mounted in any position if necessary.
What are the environmental conditions for operating this fuse link?
The Siemens 3NE8721-1 can operate in temperatures ranging from -20 °C to 50 °C, with a relative humidity of up to 95%.
What is the design of the fuse link?
The Siemens 3NE8721-1 is designed with bolt-on links and features a front indicator for easy identification.
What is the operating class of this fuse link?
The operating class of the Siemens 3NE8721-1 fuse link is aR, which is suitable for semiconductor protection.
Is this fuse link suitable for both AC and DC applications?
Yes, the Siemens 3NE8721-1 fuse link is suitable for both AC and DC applications, with rated voltages of 690 V AC and 440 V DC.
What is the size of the fuse system according to standards?
The Siemens 3NE8721-1 fuse link is classified as NH000 according to DIN EN 60269-1 standards.
- Protection of semiconductor devices in industrial applications
- Use in power distribution systems for overcurrent protection
- Integration into electrical panels for safeguarding sensitive components
- Application in renewable energy systems to protect inverters and converters
- Utilization in motor control centers for enhanced safety
- Deployment in automation systems to ensure reliable operation
- Installation in HVAC systems for electrical protection
- Use in data centers to protect critical infrastructure from electrical faults
This content has been produced using multiple sources. EU Automation takes no responsibility for the accuracy of this information. Always consult the original equipment manufacturer for the most up to date instructions and information.
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Warranty
All parts new or reconditioned are covered by EU Automation 12 month warranty
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Customer reviews
steve
Daniel
Excellent customer service...
Alex Bailey is my main point of contact at EU Automation...he is extremely friendly, has exceptional customer service skills and always offers great pricing & lead times.
3 months ago
Jerry Schrink
Tom Higgins provided amazing service
Tom Higgins provided great prompt service. I contacted Tom by phone and within 10 minutes there was a quote in my in box. WOW Thank you Tom and Thank you EU Automation!
3 months ago
Paulo Pereira
Excellent service and communication…
Excellent service and communication from Alex Bailey. He truly goes above and beyond to ensure his clients are 100% satisfied. The entire process was seamless, and his attention to detail made a huge difference. Highly recommended for anyone looking for amazing service!
3 months ago
Gary
Tom Higgins did a great job at getting…
Tom Higgins did a great job at getting us the part we needed. He saw a concern with the part a verified before shipping.
3 months ago
Lessle Smith
Thomas Higgins has gone above and…
Thomas Higgins has gone above and beyond to make things happen for my facility. His customer service and knowledge were an asset in helping me with my order and the logistics challenges!
4 months ago
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