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5SB221
DIAZED fuse link 500 V for cable and line protection gG, size DII, E27, 4 A
- Stock status:
- In stock
- Manufacturer:
- Siemens
- Product code:
- 5SB221
Main documents
- Product datasheet
- Instruction sheet
- Catalogue
Related products
| Product | |
| Article Number | 5SB221 |
| Product Description | DIAZED fuse link 500 V for cable and line protection gG, size DII, E27, 4 A |
| Product family | SENTRON DIAZED Fuse Systems |
| Product Lifecycle (PLM) | PM300:Active Product |
| Price data | |
| Price Group | 13I |
| List Price | Show prices |
| Customer Price | Show prices |
| Surcharge for Raw Material | see also metal factor (further details are available on the help page) |
| Metal Factor | L-P—– |
| Additional Product Information | ||
| EAN | 4001869021188 | |
| UPC | Not available | |
| Commodity Code | 85361010 | |
| LKZ_FDB/ CatalogID | LV10.1 | |
| Product Group | 5535 | |
| Group Code | P310 | |
| Country of origin | Poland | |
| Compliance with the substance restrictions according to RoHS directive | Since: 01.06.2006 | |
| Product class | B: return restricted, please contact your Siemens partner/contact | |
| WEEE (2012/19/EU) Take-Back Obligation | Yes | |
| REACH Art. 33 Duty to inform according to the current list of candidates | ||
| SCIP number | Not available | |
Product Description
Siemens
Siemens, a global leader in the electrical and industrial automation sectors, is renowned for its high-quality products and solutions, ranging from electrical equipment and automation systems to energy management and telecommunications technologies.
With a strong focus on innovation, Siemens provides cutting-edge solutions that enhance operational efficiency, sustainability, and productivity across various industries. From advanced circuit breakers and switchgear to smart grid solutions, Siemens continues to shape the future of technology, delivering reliable and energy-efficient products that meet the evolving needs of businesses and industries worldwide.
Siemens Miniature Circuit Breakers (MCBs) from the SENTRON portfolio provide essential circuit protection for residential, commercial, and industrial applications. They are designed to automatically disconnect electrical circuits in the event of overload or short circuit, preventing damage to wires, cables, and connected devices.
As electrical demands increase, Siemens MCBs ensure safe and efficient power distribution, reducing the risk of downtime and costly equipment failures.
Circuit Protection & Surge Protection
Siemens Surge Protection Devices (SPDs) safeguard electrical systems from voltage spikes, lightning strikes, and transient overvoltages that can damage sensitive equipment. Part of the SENTRON portfolio, Siemens SPDs ensure reliable protection for residential, commercial, and industrial applications. These devices divert excess voltage safely to the ground, preventing disruptions and extending the lifespan of electrical components.
With Siemens SPD solutions, businesses and homeowners can prevent costly downtime, reduce equipment failures, and enhance electrical safety. Protect your power network with Siemens Surge Protection Devices – ensuring stable and secure electrical performance!
5SB221
The Siemens 5SB221 is a DIAZED fuse link designed for cable and line protection in electrical installations. This gG-type fuse is suitable for protecting circuits from overload and short circuit events, providing a reliable solution for the safety and integrity of electrical systems. With a current rating of 4 A and a 500 V voltage rating, it is ideal for a range of industrial and commercial applications.
Key Features and Specification
- Voltage Rating: 500 V
- Fuse Type:gG (general purpose fuse for overload and short circuit protection)
- Size: DII
- Socket Type: E27
- Current Rating:4 A
Applications:
- Cable and Line Protection
- Electrical Circuit Overload Protection
- Short Circuit Protection
- Industrial and Commercial Electrical Systems
- Circuit Breakers and Fuse Holders
Product Details:
- Product Family: SENTRON DIAZED Fuse Systems
- Lifecycle Status: PM300 – Active Product
Summary:
The Siemens 5SB221 is a 4A DIAZED fuse link designed to provide reliable overload and short circuit protection for electrical circuits. With a 500 V voltage rating and compatibility with DII-sized fuse holders and E27 sockets, this fuse link is ideal for cable and line protection in industrial and commercial electrical systems. Its high safety standards and gG-type rating ensure long-lasting protection, making it a vital component in the maintenance of electrical installations.
Frequently Asked Questions
Which is Better: ACB or MCCB?
✅ Current Rating: ACBs are designed for higher current ratings than MCCBs, making them ideal for circuits with larger current demands.
✅ Adjustable Tripping: MCCBs offer adjustable tripping thresholds, which makes them versatile and suitable for a variety of circuit applications. This flexibility can give MCCBs an advantage in systems where different levels of protection are required.
In summary, ACBs are often preferred for high-current circuits, while MCCBs provide flexibility and adaptability in a range of applications. Each type has its strengths depending on the specific needs of the electrical system.
When Should You Use an ACB (Air Circuit Breaker)?
✅ Air Circuit Breakers (ACBs) are ideal for high-voltage applications, such as substations and power transmission systems, where they offer dependable protection by effectively interrupting heavy fault currents. Their robust design makes them a top choice for safeguarding critical electrical systems that require high fault-clearing capabilities.
What is the Purpose of a WL Circuit Breaker?
✅ The Siemens WL power circuit breaker is designed for low-voltage switchgear and switchboard applications, offering essential protection against short circuits and faults to prevent electrical damage or fire hazards. Commonly used as incoming-feeder, coupler, and outgoing-feeder circuit breakers, WL circuit breakers serve a wide range of applications in industrial, commercial, and infrastructure settings. They are a reliable choice for ensuring the safety and efficiency of electrical installations.
Are Siemens WL Circuit Breakers 100% Rated?
✅ Yes, Siemens WL circuit breakers are 100% rated, meaning they are designed for continuous operation at their full current rating without requiring external heat sinks. These breakers are engineered to meet the rigorous demands of standard industrial and commercial applications, ensuring reliable performance and protection for continuous, high-current usage.
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