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Siemens 3RK3121-2AC00

SIRIUS, Central unit 3RK3 ASIsafe Basic for modular Safety s
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Introducing the SIRIUS 3RK3121-2AC00, a cutting-edge central unit designed for modular safety systems. Engineered by Siemens, this unit is ideal for applications requiring comprehensive monitoring and control over ASI slaves.

Operating at a supply voltage of 24V DC, the SIRIUS 3RK3 ASIsafe Basic unit provides reliable management of up to 8 safe outputs on the AS-Interface bus. Its compact dimensions of 4.50 x 12.40 x 11.10 cm and a slim profile allow for versatile installation in various industrial environments.

This unit is parameterizable using software, enabling customization to meet specific operational demands. It adheres to the highest safety standards, offering up to SIL3 compliance according to IEC 61508 and Performance Level E as per ISO 13849-1. With no extension modules required, installation and setup are simplified without compromising safety.

The SIRIUS 3RK3121-2AC00 is the optimal choice for professionals seeking reliability, safety, and performance in electrical control systems.

SIRIUS, Central unit 3RK3 ASIsafe Basic for modular Safety system 3RK3 1/2F-DI, 6DI, 1F-RO, 1F-DO,24 V DC Monitoring of ASI slaves Control of 8 safe outputs on AS-Interface bus parameterizable using software Safety ES 45 mm overall width Spring-type terminal Up to SIL3 (IEC 61508) Up to Performance Level E (ISO 13849-1) No extension module connectable
General
Manufacturer:
Siemens
Range:
Sirius
PLM
Product phase:
Active
PLC
Supply voltage:
24V DC
Logistics
Dimensions:
4,50 x 12,40 x 11,10
Weight:
0.75lbs
Commodity Code:
85371091
ECCN number:
EAR99
EAN:
4011209913226
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
-72%
Resource use minerals and metals
-95%
Water use
-83%
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. 
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 much are transport costs?
Transport costs are usually included in the price. There are a few exceptions. Check the overview of all transport costs.