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RLN42 NAMUR isolating amplifier

NAMUR isolating amplifier, 2-channel with 24 to 230 V AC/DC and NAMUR or switching contact input as well as relay output, optionally with SIL and Ex

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RLN42 NAMUR isolating amplifier

NAMUR isolating amplifier, 2-channel with 24 to 230 V AC/DC and NAMUR or switching contact input as well as relay output, optionally with SIL and Ex

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Benefits

  • Simple and fast wiring with pluggable terminals
  • Suited for use in safety instrumented systems up to SIL 2 (IEC 61508)
  • Compact housing width with 17.5 mm (0.69 in) for efficient use of space
  • Galvanic 3-way isolation
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RLN42 NAMUR isolating amplifier

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Product information

RLN42 2-channel, wide-range isolating amplifier with universal power supply
RLN42 - NAMUR isolating amplifier
Specifications
Measuring / Application task Power supplies & barrier
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Description

The NAMUR isolating amplifier is designed for safe operation of proximity switches according to EN 60947-5-6 (NAMUR) as well as open and mechanical contacts with resistive coupling elements. It has a universal power supply (24 to 230 V AC/DC) and one relay output (changeover) per channel. The device is approved for intrinsically safe (Ex i) circuits up to zone 0 (gas) and zone 20 (dust) in the Ex area. RLN42 can be used in safety equipment up to SIL 2 in accordance with IEC 61508.

Field of application
  • Isolating amplifier for binary switch signals
  • Wide-range power supply (24 to 230 V AC/DC)
  • Input for proximity sensors acc. to NAMUR (EN 60947-5-6); floating contacts or contacts with resistance circuit
  • Monitoring of input circuits for line faults such as line break and short-circuit (LFD), disengageable
  • Output-side relay contacts as signal output, direction of action can be selected via DIP switches
  • Ambient temperatures -40 to 60 °C (-40 to 140 °F)
  • Installation in hazardous areas zone 2 / div 2
Benefits
  • Simple and fast wiring with pluggable terminals
  • Suited for use in safety instrumented systems up to SIL 2 (IEC 61508)
  • Compact housing width with 17.5 mm (0.69 in) for efficient use of space
  • Galvanic 3-way isolation
Downloads
Most downloaded
Operating Instruction (BA)
RLN42 Two-channel NAMUR isolating amplifier with universal power supply and
relay signal output
English version - 09/2021
Download
Technical Information (TI)
RLN42 NAMUR isolating amplifier
English version - 09/2021
Download
Short Instruction (KA)
KA RLN42 Two-channel NAMUR isolating amplifier with 24 to 230 V<sub>AC/DC
</sub> universal power supply and relay signal output
English version - 12/2022
Download
The CAD Drawings will be available after the configuration.
All downloads
20 Downloads
Technical Information (TI)
Most downloaded
RLN42 NAMUR isolating amplifier
English version - 09/2021
Download
Operating Instruction (BA)
Most downloaded
RLN42 Two-channel NAMUR isolating amplifier with universal power supply and
relay signal output
English version - 09/2021
Download
Short Instruction (KA)
KA RLN42 Two-channel NAMUR isolating amplifier with 24 to 230 V<sub>AC/DC
</sub> universal power supply and relay signal output
English version - 12/2022
Download
Ex Safety Instruction (XA)
RLN42 NAMUR CONTROL / INSTALLATION DRAWING for explosionhazardous areas according to Directive 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 ia Da] IIIC, Ex ec nC [ia Ga] IIC T4 Gc
English version - 06/2023
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
Fields of Activities (FA)
System products and data managers Solutions to complete your measuring point
English version - 09/2026
Download
Fields of Activities (FA)
Systemprodukte und Datenmanager Lösungen zur Vervollständigung Ihrer Messstelle
German version - 09/2026
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: RLN42-
Declaration number: EU_01003_01.22
English version - 06/2021
Download
EU Declaration
Product family: Contactors/transmitters Product root: RLN42-
Declaration number: EC_00908_01.21
English version - 06/2020
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: RLN42-
Declaration number: UK_00467_01.21
English version - 12/2021
Download
UK Conformity Assessed
Product family: Contactors/transmitters Product root: RLN42-
Declaration number: UK_00408_01.21
English version - 08/2022
Download
Explosion Protection
Product family: Contactors/transmitters Product root: RLN42-
Region: International (IECEx)
Approval agency: IBExU
Protection: [Ex ia Da] IIIC, [Ex ia Ga] IIC, Ex ec nC
020 020 055
English version - 06/2021
Download
Explosion Protection
Product family: Contactors/transmitters Product root: RLN42-
Region: International (IECEx)
Approval agency: IBExU
Protection: Ex e, Ex n, Ex [i]
English version - 06/2021
Download
Explosion Protection
Product family: Contactors/transmitters Product root: RLN42-
Region: Europe (ATEX)
Approval agency: IBExU
Protection: Ex e, Ex n, Ex [i]
English version - 06/2021
Download
Marine
Product family: Contactors/transmitters Product root: RLN42-
Region: International
Approval agency: DNV
English version - 04/2022
Download

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Spare parts and accessories

further parts
further parts

Terminal set 3pol. DIN rail screw

further parts
further parts
Order code 71505345
further parts
further parts

Terminal set 3pol. DIN rail push-in

further parts
further parts
Order code 71505346
further parts
further parts

Flap 17.5 W25 DIN rail housing

further parts
further parts
Order code 71505348
further parts
further parts

Resistive coupling element 1K/10K

further parts
further parts
Order code 71505353
Spare parts and accessories
RLN42 2-channel, wide-range isolating amplifier with universal power supply
RLN42 - NAMUR isolating amplifier

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RLN42 2-channel, wide-range isolating amplifier with universal power supply
RLN42 - NAMUR isolating amplifier
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Spare parts and accessories

further parts
further parts

Terminal set 3pol. DIN rail screw

further parts
further parts
Order code 71505345
further parts
further parts

Terminal set 3pol. DIN rail push-in

further parts
further parts
Order code 71505346
further parts
further parts

Flap 17.5 W25 DIN rail housing

further parts
further parts
Order code 71505348
further parts
further parts

Resistive coupling element 1K/10K

further parts
further parts
Order code 71505353
Spare parts and accessories