Electronic Products & Technology

Modular programmable relay modules ensure safety

EP&T Magazine   


PHOENIX CONTACT PSR-TRISAFE-M safety relay monitors all safety-relevant functions in machines and plants. The expandable device is 67.5mm wide and can be used to evaluate up to 20 safety-relevant input signals. Product provides four intrinsically safe outputs as well as clock cycle, signaling and ground switching outputs. Master device can be simply and flexibly expanded using safety I/O modules up to a maximum of 80 safe inputs and 40 safe outputs.



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