What's relay?

Relay is a kind of component by which when the input is reached a certain value, one or more outputs will produce the scheduled changes. 　　For electromagnetic relay, SSR and combined relay, it can be simply understood in the following way: it is a switch by which in the input end the speculated electrical signals are applied, the output end makes or breaks the controlled circuit. 　　There are many kinds of classifications about relays, we takes the following classification shown as Table… More information...

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