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The Siemens SIRIUS Series Safety Relay is a vital component for industrial automation, designed to ensure the highest standards of safety in machinery and plant operations. This advanced safety relay, with the part number 3SK1121-1CB41, operates with a 24 V dc control supply voltage and features a compact design with dimensions of 22.5 x 121.6 x 100 mm, making it suitable for integration into various control panels and systems. Equipped with two normally open (NO) contacts for immediate response and two NO contacts for delayed operations, this relay provides flexibility in safety circuit design, allowing for both instantaneous and time-delayed safety functions. The screw terminal connection ensures a secure and reliable installation, while the relay's ability to handle single-channel or dual-channel sensor inputs makes it adaptable to a range of safety applications. With a solid construction that meets the IP20 protection class, the relay is finger-safe and designed to withstand the rigours of industrial environments. Its compliance with relevant international safety standards, including a Safety Integrity Level (SIL) of 3 and a Performance Level (PL) of e, ensures that it can be trusted to perform safety functions to the highest levels required for protecting both machinery and personnel. The SIRIUS safety relay is an essential component for those who require a dependable and versatile safety solution in their automated processes, providing peace of mind through enhanced safety measures and operational reliability.
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Support centreOur global network and dedicated team act fast to keep your supply chain moving.
Contact usFind answers, guidance and resources to help you get the most out of our services.
Support centreWhether you're maintaining existing equipment or sourcing parts for current systems, we provide fast, dependable supply you can rely on.
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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"
"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."
"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!"
"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!"
"Tom Higgins did a great job at getting us the part we needed. He saw a concern with the part a verified before shipping. "
"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! "
We take care of the logistics so you don't have to. From customs documentation to real-time tracking, our service ensures your parts arrive on time, every time. Reliable, straightforward delivery you can trust.
Full 12-month warranty
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