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The Siemens FUSÍVEL DIAZED GL DII 4A 5SB221 (Manufacturer Part Number: 5SB221) is a high-quality general-purpose Diazed fuse link designed for reliable protection of electrical circuits in industrial and commercial installations. Part of the Siemens SENTRON protection system, this fuse provides efficient safeguarding against overloads and short-circuit conditions in low-voltage distribution networks. With a 4A rated current, DII size compatibility, and gG (GL) characteristic, it is widely used in automation panels, control systems, and power distribution applications where dependable and continuous circuit protection is required.
gG (GL) characteristic for reliable overload and short-circuit protection
High breaking capacity ensuring safe interruption of fault currents up to industrial standards
Compatible with Siemens SENTRON Diazed fuse bases for easy installation and replacement
Robust ceramic body construction for excellent thermal and mechanical durability
Suitable for industrial automation, electrical panels, and power distribution systems
Product: Siemens FUSÍVEL DIAZED GL DII 4A
Manufacturer Part Number: 5SB221
Type: Diazed fuse link (gG / GL general-purpose protection)
Rated Current: 4A
Rated Voltage: 500V AC / DC
Fuse Size: DII (E27 thread system)
Breaking Capacity: Up to 50 kA (AC as per IEC 60269 / IEC standards)
Color Code: Brown
Body Material: High-strength ceramic
Application: Cable and line protection in industrial electrical systems
Standards: IEC 60269 / VDE compliant
The Siemens 5SB221 DIAZED fuse link ensures stable, safe, and long-lasting circuit protection in demanding industrial environments. Backed by Siemens’ globally trusted engineering quality, it delivers consistent performance and operational safety for critical electrical infrastructure. For genuine Siemens industrial automation components, contact Ram Automations at info@ramautomations.com.
Returns Policy
You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).
You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).
If you need to return an item, simply login to your account, view the order using the "Complete Orders" link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.
Shipping
We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.
When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.
Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.
