“What Is A Safety Relay?” presented by Katie Nyberg for GalcoTV.

Safety relays offer an extra level of protection usually through a redundant wiring system. These relays are used to enable and monitor the signals between other safety devices such as safety switches, sensors, and light curtains. In many cases the safety relay can be paired with a safety PLC, configurable safety relay or safety controller…

 

Galco TV (2015) What Is A Safety Relay?
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