Serviceline Industrial Sensors
Serviceline Explosion Protection

Relay Output

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Numerous process automation applications include basic ON/OFF switching routines. Simple status and alarm indication is noted via beacons, flashlights, sirens, or horns. To control these indicators, solenoid valves, or other switching functions in Zone 2, Class I/Div.2 explosions-hazardous areas, Pepperl+Fuchs provides relay outputs with Ex nA terminals.

As part of the LB system remote I/O solution, our relay output modules are available in 4- and 8-channel versions, ensuring the highest possible utilization of backplanes for module connection while enabling compact remote I/O solutions with large channel numbers.

Galvanic isolation separates the modules’ outputs from bus and power. In addition, the relay outputs are hot-swappable, which allows quick and easy module replacement without time-consuming system shutdowns.


The new LB/FB PROFINET gateways from Pepperl+Fuchs open the door for IIoT 4.0 applications in process industries.