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RLN22 NAMUR isolating amplifier

NAMUR isolating amplifier, 1/2-channel with 24 V DC and NAMUR or switching contact input as well as relay output, optionally with SIL and Ex

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RLN22 NAMUR isolating amplifier

NAMUR isolating amplifier, 1/2-channel with 24 V DC and NAMUR or switching contact input as well as relay output, optionally with SIL and Ex

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Benefits

  • Safe and reliable switching operations: trust your critical applications
  • Compact housing: up to 2 channels on 12.5 mm (0.49 in) for efficient use of space in control cabinets
  • Installation in hazardous areas; Ex approval for Ex zone 2
  • Up to SIL 2 in accordance with IEC 61508
  • Quick and easy wiring and commissioning: plug-in terminals, power supply and group error message module via DIN rail bus connector
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RLN22 NAMUR isolating amplifier

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Product information

RLN22 1- or 2-channel, 24 V DC, isolating amplifier with relay signal output for systems up to SIL 2
RLN22
Specifications
Measuring / Application task Power supplies & barrier
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Description

The RLN22 is a compact 1- or 2-channel, 24 VDC isolating amplifier with relay signal output. It is designed to safely operate e.g. proximity sensors or point level switches such as the Liquiphant FTL51B (NAMUR) as per IEC 60947-5-6. The DC interface monitors line faults such as breaks or short-circuits of sensors or mechanical switching contacts. The device is suited for use in hazardous areas and safety instrumented systems up to SIL 2 in accordance with IEC 61508.

Field of application
  • Isolating amplifier for the transmission of binary switching signals
  • Input for proximity sensors, open contacts or contacts with resistive coupling elements
  • Galvanic isolation (3-way)
  • Line fault monitoring of input circuits or mechanical switching contacts
  • Group error message via DIN rail bus connector
  • Output-side relay contacts, direction of action (operating or quiescent current behavior) via DIP switch selection
  • Ambient temperature range: –40 to 60 °C (–40 to 140 °F)
Benefits
  • Safe and reliable switching operations: trust your critical applications
  • Compact housing: up to 2 channels on 12.5 mm (0.49 in) for efficient use of space in control cabinets
  • Installation in hazardous areas; Ex approval for Ex zone 2
  • Up to SIL 2 in accordance with IEC 61508
  • Quick and easy wiring and commissioning: plug-in terminals, power supply and group error message module via DIN rail bus connector
Downloads
Most downloaded
Operating Instruction (BA)
RLN22 1- or 2-channel NAMUR isolating amplifier 24 V DC with relay signal
output
English version - 10/2021
Download
Technical Information (TI)
RLN22 NAMUR isolating amplifier
English version - 10/2021
Download
Short Instruction (KA)
KA RLN22 1- or 2-channel NAMUR isolating amplifier 24 V<sub>DC</sub>
with relay signal output
English version - 12/2022
Download
The CAD Drawings will be available after the configuration.
All downloads
17 Downloads
Technical Information (TI)
Most downloaded
RLN22 NAMUR isolating amplifier
English version - 10/2021
Download
Operating Instruction (BA)
Most downloaded
RLN22 1- or 2-channel NAMUR isolating amplifier 24 V DC with relay signal
output
English version - 10/2021
Download
Short Instruction (KA)
KA RLN22 1- or 2-channel NAMUR isolating amplifier 24 V<sub>DC</sub>
with relay signal output
English version - 12/2022
Download
Ex Safety Instruction (XA)
RLN22: 1- oder 2-kanaliger NAMUR-Trennschaltverstärker mit Relais-Signalausgang CONTROL/INSTALLATION DRAWING for explosion h azardous areas according to Direc. 2014/34/EU (ATEX) ATEX/UKCA: ATEX II (1) G [Ex ia Ga] IIC, II (1) D [Ex ia Da] IIIC,
II3(1) G
Ex ec nC [ia Ga] IIC T4 Gc
IECEx: [Ex ia Ga]
IIC, [Ex iaDa] IIIC, Ex ec nC [ia Ga] IIC T4 Gc
English version - 08/2024
Download
Special Documentation (SD)
Device viewer Technical documentation in other languages
English version - 07/2021
Download
Functional Safety (FY)
RLN22, RLN42 NAMUR isolating amplifier with relay signal output
English version - 11/2021
Download
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
Japanese version - 08/2022
Download
Fields of Activities (FA)
시스템 제품 및 데이터 관리자 - 시그널 루프 구성 솔루션 시스템 제품 및 데이터 관리자 - 시그널 루프 구성 솔루션
Korean version - 03/2024
Download
Innovation (IN)
RN Series Zuverlässige Signalverarbeitung und -aufbereitung Spannungsversorgungen, Speisetrenner und
Trennschaltverstärker für Sensoren und
analoge Signale
German version - 06/2023
Download
Manufacturer Declaration
Product family: Accessories: System components, Contactors/transmitters, Ecograph, Memo-Graph, Over voltage protector, Power supply and barrier, Process displays, Soliswitch Product root: FMA90-, FTE20-, HAW566-, HAW568-, RA33-, RB223-, RH33-, RIA14-, RIA15-, RIA16-, RIA45-, RIA452-, RIA46-, RID14-, RID16
-, RLN22-, RLN42-, RMA42-, RN22-, RN42-, RNF22-, RNO22-, RS33-, RSG35-, RSG45-
Declaration number: HE_02283_01.25
Manufacturer specification: RoHS
Additional information: China RoHS
English version - 11/2025
Download
EU Declaration
Product family: Contactors/transmitters Product root: RLN22-
Declaration number: EC_00909_01.21
English version - 06/2021
Download
EU Declaration
Product family: Contactors/transmitters Product root: RLN22-
Declaration number: EU_01002_01.22
English version - 06/2021
Download
SIL Declaration
Product family: Contactors/transmitters Product root: RLN22-, RLN42-
Declaration number: SIL_00466_02.26
Safety-related output signal: Relay
Systematic safety integrity: SIL 3
Hardware safety integrity: SIL 2
German version - 09/2026
Download
UK Conformity Assessed
Product family: Contactors/transmitters Product root: RLN22-
Declaration number: UK_00407_01.21
English version - 08/2022
Download
UK Conformity Assessed
Product family: Contactors/transmitters Product root: RLN22-
Declaration number: UK_00466_01.21
English version - 12/2021
Download
Explosion Protection
Product family: Contactors/transmitters Product root: RLN22-
Region: International (IECEx)
Approval agency: IBExU
Protection: [Ex ia Da] IIIC, [Ex ia Ga] IIC
English version - 06/2021
Download
Explosion Protection
Product family: Contactors/transmitters Product root: RLN22-
Region: Europe (ATEX)
Approval agency: IBExU
Category: II 3 G, II (1) D, II (1) G
Protection: [Ex ia Da] IIIC, [Ex ia Ga] IIC, Ex ec nC
020 020 055
English version - 06/2021
Download

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Spare parts and accessories

further parts
further parts

Terminal set 2pol. DIN rail screw

further parts
further parts
Order code 71505292
further parts
further parts

Terminal set 2pol. DIN rail push-in

further parts
further parts
Order code 71505320
further parts
further parts

Flap 12.5 W25 DIN rail housing

further parts
further parts
Order code 71505347
further parts
further parts

Resistive Coupling Element, 1K/10K

further parts
further parts
Order code 71505353
Spare parts & accessories
RLN22 1- or 2-channel, 24 V DC, isolating amplifier with relay signal output for systems up to SIL 2
RLN22

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RLN22 1- or 2-channel, 24 V DC, isolating amplifier with relay signal output for systems up to SIL 2
RLN22
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CAD Drawings
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Spare parts and accessories

further parts
further parts

Terminal set 2pol. DIN rail screw

further parts
further parts
Order code 71505292
further parts
further parts

Terminal set 2pol. DIN rail push-in

further parts
further parts
Order code 71505320
further parts
further parts

Flap 12.5 W25 DIN rail housing

further parts
further parts
Order code 71505347
further parts
further parts

Resistive Coupling Element, 1K/10K

further parts
further parts
Order code 71505353
Spare parts & accessories