RN42 active barrier
Active barrier, 1 channel for 4 to 20 mA, HART® transparent with 24 to 230 V AC/DC as well as active/passive input and output, optionally with SIL and Ex
Benefits
- Wide range power supply of 19.2 to 253 V AC/DC
- Quick and easy wiring thanks to plug-in terminals
- Optional for safety-oriented applications up to SIL 2 (SC3) in accordance with IEC 61508
- Optional installation in Ex Zone 2
- Compact housing width with 17.5 mm (0.69 in) for efficient use of space
- Option for installation rotated by 180° (terminals for power supply at top or bottom)
Services and resources
RN42 active barrier
- Simple products
- Easy to select, install and operate
What is FLEX?
Engineered for Confidence
Our Fundamental Selection instruments feature an extended 5-year warranty – a clear testament of our trust in their long-term reliability and performance.
Should a warranty case occur, you can count on a fast replacement process and minimal administrative effort – giving you peace of mind when it matters most and helping you keep your operations running smoothly.
Warranty terms apply
The extended warranty is subject to specific conditions. For full details, please refer to the locally applicable General Terms and Conditions (GTC), which can be found on the respective country page of our website.
Right‑first‑time commissioning, worldwide
Endress+Hauser’s qualified service engineers ensure your measurement devices are commissioned right the first time, delivering application‑aligned accuracy, regulatory compliance, and operational confidence from startup onwards, anywhere in the world.
Remote support you can trust wherever you operate
With Endress+Hauser Smart Support, you benefit from faster issue resolution, higher uptime, reliable global expertise across the entire product lifecycle – and lasting peace of mind.
Committed to long‑term, sustainable performance
With deep field expertise, harmonized processes, and continuous monitoring, we accompany you with comprehensive service offerings – from initial start‑up through instrumentation maintenance to process optimization – as a true lifetime partner delivering improved outcomes.
For additional information, please contact your local Endress+Hauser representative.
Personalized transaction space
Check prices and delivery times, save your favorite products, create quotes and place orders in just a few clicks and track deliveries at any time. With access to your complete order and quote history including all relevant documents you benefit from full transparency throughout the entire process.
Easy access to technical documentation
Select and download all technical documentation such as operating manuals, calibration certificates, approvals and CAD drawings conveniently bundled as a complete documentation package for your entire order or quote.
My Endress+Hauser – all in one place
My Endress+Hauser is your 24/7 connection to Endress+Hauser – in the office, in the field or on the go. It brings together transaction management, documentation and software downloads, knowledge base access, customer support, engineering tools and cloud‑based IIoT services helping you work easier, faster and more efficiently.
Related content
Choose from our suggested options
Use the extended configuration to configure from all available options.
Unsure about configuration details?
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Add your product to the cart and request a quote. Whether it is un-configured, partially configured, or fully configured, our experts will contact you to complete the configuration and provide your quote.
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