Relay: A mechanical relay is an electromechanical device that closes contacts to complete a circuit or opens contacts to interrupt a circuit. A solid state relay is a switching device that completes or interrupts a circuit electrically and has no moving parts.
👇 ស្វែងរកឯកសាររៀននិងការងារគ្រប់ប្រភេទនៅទីនេះ៖
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