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.
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
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RLN42 NAMUR
CONTROL / INSTALLATION DRAWING for explosionhazardous areas according to
Directive 2014/34/EU (ATEX)
Ex Safety Instruction (XA)
English version - 06/2023
New version available in English
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
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