The 138491 is a safety relay designed to monitor various safety functions such as emergency stops, safety gates, light barriers, light curtains, two-hand controls, pressure-sensitive mats, and speed or standstill conditions. It offers flexible wiring options with 1 or 2 channels, with or without detection of short circuits across contacts. The relay features LED indications and multiple normally open (N/O) outputs, supporting applications up to Performance Level e (PLe) according to EN ISO 13849-1 and SIL CL 3 standards. It provides an effective safety solution suitable for complex machine control systems, ensuring reliable monitoring and safety function management.
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