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 V DC
Field of application
The 1- or 2-channel RN22 active barrier powers analog instrument loops and safety instrumented systems up to SIL 2 (SC 3). The intrinsically safe, HART® transparent interface establishes a reliable link between field devices and process control. It interfaces with 2-/4-wire devices in hazardous areas and provides a second galvanically isolated signal output acc. to NAMUR NE 175. This opens a second channel for the process optimization domain without affecting the traditional automation system.
Single- or two-channel active barrier, power supply or signal doubler
0/4 to 20 mA analog signal transmission (NAMUR NE 43) and galvanic isolation
Intrinsic safety for operation in hazardous areas (Zone 2)
Bidirectional HART® communication (transparent)
2- and 4-wire capability for instruments in hazardous areas (Zones 0/20)
Ambient temperature range: -40 … 60 °C (-40 … 140 °F)
Benefits
Intrinsically safe interface device suited for use in safety instrumented systems up to SIL 2 (SC 3) in accordance with IEC 61508
Quick and easy wiring with screw or push-in terminals or power supply via power rail T-connector
Easy access to frontside HART® connection taps
Compact housing: up to two channels on 12.5 mm (0.49 in) for efficient use of space in control cabinets
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Predecessor
Success stories
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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
|
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 |
Most downloaded
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Operating Instruction (BA)
BA RN22
English version - 04/2025
Active barrier, 1-/2-channel/SD for 4 to 20 mA, HART®-transparent with 24 V <sub>DC</sub> as well as active/passive input and output , optionally available with SIL and Ex
EN 14/04/202508/04/202414/12/2020Language:
English
Version:
14/04/2025
File size:
1.8 MB
File name:
BA02004KEN_0325-00.pdf
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Technical Information (TI)
TI RN22
English version - 04/2025
Active barrier
EN 09/04/202508/04/202401/11/2020Language:
English
Version:
09/04/2025
File size:
875.6 KB
File name:
TI01515KEN_0325-00.pdf
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38 documents
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Technical Information (TI)
TI RN22
Active barrier
EN 09/04/202508/04/202401/11/2020Language:
English
Version:
09/04/2025
File size:
875.6 KB
File name:
TI01515KEN_0325-00.pdf
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-
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Operating Instruction (BA)
BA RN22
Active barrier, 1-/2-channel/SD for 4 to 20 mA, HART®-transparent with 24 V <sub>DC</sub> as well as active/passive input and output
, optionally available with SIL and ExEN 14/04/202508/04/202414/12/2020Language:
English
Version:
14/04/2025
File size:
1.8 MB
File name:
BA02004KEN_0325-00.pdf
-
-
-
Short Instruction (KA)
KA RN22
Active barrier, 1-/2-channel/SD for 4 to 20 mA, HART®-transparent with 24 V <sub>DC</sub> as well as active/passive input and output
, optionally available with SIL and ExEN 21/04/202508/04/202401/12/202220/12/202101/02/2020Language:
English
Version:
21/04/2025
File size:
562.2 KB
File name:
KA01449KEN_0525-00.pdf
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Ex Safety Instruction (XA)
RN22, RN42
[Ex ia Ga] IIC
[Ex ia Da] IIIC
Ex ec IIC GcEN 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
[Ex ia Ga] IIC
[Ex ia Da] IIIC
Ex ec IIC GcEN 24/05/2023Language:
English
Version:
24/05/2023
File size:
363.8 KB
File name:
XA03134KEN_0123-00.pdf
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Ex Safety Instruction (XA)
XA RN22, RN42
[Ex ia Ga] IIC
[Ex ia Da] IIIC
Ex ec IIC GcEN 17/10/2023Language:
English
Version:
17/10/2023
File size:
367.9 KB
File name:
XA03199KEN_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 GcEN 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 X
[Ex ia Da] IIIC X
Ex ec IIC Gc UEN 08/05/2026Language:
English
Version:
08/05/2026
File size:
367.8 KB
File name:
XA03757KEN_0126-00.pdf
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Special Documentation (SD)
Device viewer
Technical documentation in other languages
Language:
English
Version:
14/07/2021
File size:
478.5 KB
File name:
SD02429R09EN_0121.pdf
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Search spare parts by number in drawing
60 spare parts & accessories
60 spare parts & accessories
60 spare parts & accessories
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Terminal set 2pol. DIN rail screw
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further parts
Order code71505292 -
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Terminal set 2pol. DIN rail push-in
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further parts
Order code71505320 -
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Flap 12.5 W25 DIN rail housing
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further parts
Order code71505347 -
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Power rail connector DIN rail 12.5mm
Order code71505349
Often bought together
Accessories
- Power rail connector DIN rail 12.5mm
