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Product picture passive barrier RB223

RB223 passive barrier

One or two-channel barrier for the safe separation of 4...20 mA standard signal circuits

RB223
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5-year warranty

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.

Passive barrier RB223
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©Endress+Hauser

Specs at a glance

  • Input

    2 x analog 4...20 mA

  • Output

    2 x analog 4...20 mA

Field of application

The RB223 passive barrier can be used to galvanically isolate active signal circuits (0 to 20 mA) in three applications:
Transmission from non-Ex to Ex areas e.g for active adjusters, controllers or indicators,
Transmission from Ex to non-Ex areas for connection of active, intrinsically safe circuits to the PLC,
Transmission from Ex to non-Ex areas for supply of intrinsically safe transmitters with non-intrinsically safe transmitter power supply.

Separation of active 0/4 to 20 mA signals from transmitters, valves and adjusters.

Benefits

  • Compact side-by-side housing for DIN rail

  • Space-saving one-channel and two-channel version

  • No power supply necessary

  • International Ex approvals; Can be used up to SIL 3

  • Bidirectional HART® transmission

  • Communication sockets for HART® + integrated HART® resistor for sensor configuration

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