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标题: Understanding the Function and Applications of Time Delay Relay Time Delay Relays (TDRs) are an essential component in modern electrical and automation systems. Unlike standard relays that operate immediately upon receiving an input signal, Time Delay Relays introduce a programmable delay before the relay activates or deactivates. This unique feature allows engineers and technicians to implement precise timing sequences in various industrial, commercial, and residential applications. Understanding how Time Delay Relays work, their types, and practical applications is crucial for anyone involved in electrical control or automation systems.