Endress+Hauser, Inc. Datasheets for Signal Isolators

Signal isolators provide electrical (galvanic) isolation between the input and output circuits. They couple the signal to the output through a transformer or optical isolator. Signal isolators also break the direct electrical (galvanic) path between two or more loop points. They are used to protect against dangerous measured-variable voltages and provide increased protection from surges and spikes.
Signal Isolators: Learn more

Product Name Notes
Barrier - Active -- RN221N Active barrier with optional HART® diagnosis and power supply for save separation of 4 to 20 mA current circuits. Wide range power supply, flexible power source Compact side by side...
Barrier -- RB223 One or two-channel, loop-powered barrier of 4 to 20 mA standard signal circuits. Compact side-by-side housing Space-saving one-channel and two-channel version No power supply necessary International Ex approvals: - ATEX,...