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The Siemens 6NH9821-0BC12 is a robust cable transformer designed to ensure the integrity and reliability of telecontrol communication lines. This component is part of the SINAUT ST7 product family and is specifically engineered to provide overvoltage protection, safeguarding sensitive electronic equipment from potential damage caused by voltage surges. Crafted for use at either the start or end of a 4-wire cable, or at a 2-wire tapping point, the 6NH9821-0BC12 is an essential device for maintaining the operational stability of industrial communication networks. It features a transmission frequency range of 300 Hz to 35 kHz, accommodating a broad spectrum of signal bandwidths for versatile application. The unit is designed to be installed as close as possible to where the cable enters the building, ensuring maximum protection where it's most needed. With an IP20 protection class, it is suited for indoor environments where it can be shielded from dust and other particulate matter. The dimensions of the 6NH9821-0BC12 are optimised for easy integration into existing setups, with a width of 90 mm, a height of 75 mm, and a depth of 110 mm. It also boasts a lightweight design at just 320 g, making it easy to handle and install. The device is mountable on a DIN rail TS35 (35 mm, EN 50 022), ensuring secure and straightforward installation. This cable transformer is a testament to Siemens' commitment to quality and reliability in industrial automation and control. It is a vital component for any setup requiring a high degree of communication line protection and stability.
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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
ISO 9001:2015 certified
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Courtney Zeinert
Facilities Manager
Whether you need advice or help finding the right part, our team is available to assist and keep your operations running smoothly.