
Specs at a glance
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Input
0/4…20 mA / HART
feeding/not feeding -
Output
0/4…20 mA / HART
active/passive -
Power Supply
24...230 V AC/DC
Field of application
The active barrier is used for transmission and galvanic isolation of 4 to 20 mA/HART signals. The device has an active / passive current input to which a 2- or 4-wire transmitter can be connected directly. The output of the device can be operated actively or passively. The current signal is then available to the PLC / controller or for further instrumentation at pluggable screw or optional push-in terminals.
1-channel active barrier, wide-range power supply
Transmission and galvanic isolation of analog 0/4 to 20 mA signals
Optionally intrinsic safe [Ex-ia] signals from hazardous area
Bidirectional transmission of HART® communication signals
Feeding or not feeding input for 2- or 4-wire instruments
Active or passive signal output
Ambient temperature range: -40 … 60 °C (-40 … 140 °F)
Benefits
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Wide range power supply of 19.2 to 253 V AC/DC
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Quick and easy wiring thanks to plug-in terminals
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Optional for safety-oriented applications up to SIL 2 (SC3) in accordance with IEC 61508
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Optional installation in Ex Zone 2
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Compact housing width with 17.5 mm (0.69 in) for efficient use of space
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Option for installation rotated by 180° (terminals for power supply at top or bottom)
Videos
Fundamental selection
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Simple products
- Easy to select, install and operate
Technical excellence
Simplicity

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Standard products
- Reliable, robust and low-maintenance
Technical excellence
Simplicity
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Specialized products
- Designed for demanding applications
Technical excellence
Simplicity
Variable
FLEX selections | Technical excellence | Simplicity |
---|---|---|
Fundamental selection Meet your basic measurement needs |
Technical excellence
|
Simplicity
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Lean selection Handle your core processes easily |
Technical excellence
|
Simplicity
|
Extended selection Optimize your processes with innovative technologies |
Technical excellence
|
Simplicity
|
Xpert selection Master your most challenging applications |
Technical excellence
|
Simplicity
Variable |
Predecessor
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Operating Instruction (BA)
RN42
Italian version - 06/2021
Barriera attiva a 1 canale con alimentazione ad ampia gamma per la separazione sicura di circuiti di segnale standard 0/4...20 mA, t rasparente al protocollo HART
EN 02/06/2021Language:
Italian
Version:
02/06/2021
File size:
1.2 MB
File name:
BA02090KIT_0121-00.pdf
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Technical Information (TI)
RN42
Italian version - 06/2021
Barriera attiva, trasparente al protocollo HART
EN 01/06/2021Language:
Italian
Version:
01/06/2021
File size:
686.4 KB
File name:
TI01584KIT_0121-00.pdf
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Technical Information (TI)
RN42
Active barrier, HART-transparent
EN 01/06/2021Language:
English
Version:
01/06/2021
File size:
687.1 KB
File name:
TI01584KEN_0121.pdf
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Operating Instruction (BA)
RN42
1-channel active barrier with wide range power supply for the safe separation of 0/4 to 20 mA standard signal circuits, HART-transpa rent
EN 02/06/2021Language:
English
Version:
02/06/2021
File size:
1.2 MB
File name:
BA02090KEN_0121.pdf
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Short Instruction (KA)
KA RN42
1-channel active barrier with 24 to 230 V<sub>AC/DC</sub> wide range power supply for the safe separation of 0/4 to 20 mA standard s ignal circuits, HART-transparent
EN 26/12/202220/12/202124/06/2021Language:
English
Version:
26/12/2022
File size:
492.8 KB
File name:
KA01509KEN_0322-00.pdf
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Ex Safety Instruction (XA)
RN22, RN42
[Ex ia Ga] IIC [Ex ia Da] IIIC Ex ec IIC Gc
EN 26/09/2022Language:
English
Version:
26/09/2022
File size:
366.1 KB
File name:
XA03020KEN_0122-00.pdf
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Ex Safety Instruction (XA)
XA RN22, RN42
Ex tc IIIC Dc
EN 31/01/2023Language:
English
Version:
31/01/2023
File size:
360.2 KB
File name:
XA03109KEN_0123-00.pdf
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Ex Safety Instruction (XA)
XA RN22, RN42
ATEX, IECEx: II(1)G [Ex ia Ga] IIC II(1)D [Ex ia Da] IIIC II3G Ex ec IIC Gc
EN 15/05/202321/03/202219/07/202130/04/2021Language:
English
Version:
15/05/2023
File size:
369.8 KB
File name:
XA02086KEN_0423-00.pdf
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Ex Safety Instruction (XA)
XA RN22, RN42
[Ex ia Ga] IIC [Ex ia Da] IIIC Ex ec IIC Gc
EN 24/05/2023Language:
English
Version:
24/05/2023
File size:
363.8 KB
File name:
XA03134KEN_0123-00.pdf
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Functional Safety (FY)
RN22, RN42
Active barrier for isolating 4 to 20 mA standard signal circuits, HART-transparent
EN 29/10/202115/01/2021Language:
English
Version:
29/10/2021
File size:
2.3 MB
File name:
FY01034KEN_0221-00.pdf
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Fields of Activities (FA)
コンポーネントカタログ
HAW562- HAW569- MS20- MS21- RA33- RB223- RDL10- READWIN- RH33- RIA14- RIA15- RIA16- RIA45- RIA452- RIA46- RID14- RID16- RID261- RLN22- RLN42- RMA42- RMC621- RMS621- RN22- RN221N- RN42- RNB22- RNF22- RNO22- RS33- RSG30- RSG35- RSG40- RSG45- RXO20
Language:
Japanese
Version:
29/08/2022
File size:
11.7 MB
File name:
Fa00016k33ja_2019.pdf
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Fields of Activities (FA)
System Products and Data Managers
Solutions for the loop Indicators, interface devices, surge arresters, energy and application managers, data managers, paper less recorders and associated software packages for process automation
Language:
English
Version:
17/05/2023
File size:
14.5 MB
File name:
FA00016KEN_2323_online.pdf
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