Fail-safe modules for ET 200iSP intrinsically safe distributed I/O system, 8F-DI Ex Namur, 4F-DO Ex 40mA/17.4V, and 4F-AI Ex HART meet safety requirements in accordance with IEC 61508 to SIL 3, ISO 13849-1 to PLe. The modules are suitable for applications including emergency shutdown (ESD), boiler protection or fire and gas equipment.
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