Endress + Hauser – RN221N-B1 – Active Barrier / Transmitter Supply 20-250 V AC/D

The Endress + Hauser RNN‑B is an active isolation barrier designed to provide galvanic isolation and loop power to … mA current‑loop transmitters. It supports bidirectional HART communication, an intrinsically safe input option and is suitable for hazardous‑area installations (ATEX).