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heroicons/solid/check Over 300,000 products in stock
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heroicons/solid/check New & refurbished 2 years warranty

Siemens 5SX21-B16

1-POLE CIRCUIT BREAKER
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The 5SX21-B16 is a high-quality 1-Pole Circuit Breaker manufactured by Siemens in Germany, designed for reliable performance in various electrical applications. This circuit breaker serves as a crucial component in safeguarding electrical circuits from overloads and short circuits.

With a robust design, the 5SX21-B16 ensures long-lasting durability and efficiency. Its testable feature allows for routine inspections, ensuring optimal functionality in your electrical installations.

Choose the 5SX21-B16 circuit breaker to enhance your electrical systems' safety and integrity. Its obsolete phase status indicates this product is well-tested, offering peace of mind for both small-scale and industrial applications.

1-POLE CIRCUIT BREAKER
General
Manufacturer:
Siemens
Range:
Sentron
Type of product:
Circuit breakers
PLM
Product phase:
Obsolete
Logistics
Weight:
0.66lbs
Commodity Code:
85044086
When you choose JCertified refurbished electronics, you save on water, raw materials, and CO₂ needed for the production of new electronics. Check below to see exactly how much you save with this specific refurbished product:
CO2 eq
-63%
Resource use minerals and metals
-89%
Water use
-57%
Why should I choose JC-Electronics?
You can rely on a stock of 300,000 pieces of industrial electronics from leading top-quality brands, both new and refurbished. Therefore, you can also find drives, PLCs, HMIs, and industrial PCs that are no longer produced with us. You always get a 2-year warranty. Additionally, refurbished products are circular, helping you reduce your ecological footprint.  Good to know: New products and tested refurbished products ordered before 16:00 CET are shipped the same day.
Why can I trust refurbished electronics from JC-Electronics?
All products are thoroughly cleaned, defects are repaired, and weak elements are proactively replaced. If they pass the endurance test, the products can be sold. You can recognize them by the JCertified warranty seal. The entire process has received the RecQ quality mark from DEKRA and the ISO14001:2015 certificate
How much warranty do I get on a product?
You always get a 2-year warranty on products, both refurbished and new. This is twice as much as the standard factory warranty from many manufacturers.
Are all products available from stock immediately?
New and tested refurbished products from our stock are always available immediately. Untested and non-refurbished products undergo a thorough refurbishment and an extensive testing procedure before shipment.
Can I order products urgently?
Yes, you can. New and refurbished products that are ready for shipment will be dispatched the same day if the order is received before 16:00 CET. An express shipment to the Netherlands, Belgium, Luxembourg, Germany, Austria, Switzerland, France, or Italy will arrive the next day. An express shipment to other countries in the European Union takes 2 days. An express shipment to countries outside the European Union takes 3 days. 
Why should I buy refurbished electronics?
There are several reasons to purchase a refurbished product. For example, because electronics are no longer made and are hard to get new. But also because refurbished is a sustainable choice, reducing your organization's ecological footprint. Whatever the reason, you always get a 2-year warranty on both refurbished and new electronics at JC-Electronics. 
How do I order a product or repair online?
First, find your product in the webshop. On the product page, you can add the product or repair to your shopping cart. Then proceed to checkout. 
How much are transport costs?
Transport costs are usually included in the price. There are a few exceptions. Check the overview of all transport costs.