What is Interposing Relay? & How it is used in PLC?
What is Interposing Relay (IPR)? Interposing Relay is the auxiliary relay for isolating the two different systems or two different devices because these devices may have different Zero Voltage references. These two devices may be a Programmable Logic Controller and Contactor. The main purpose of interposing relay is to minimize the load on the controller …
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