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Time Delay Relays:

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延時繼電器主要用于直流或交流操作的各種保護和自動控制線路中，作為輔助繼電器，以增加觸點數(shù)量和觸點容量?？筛鶕?jù)需要自由調(diào)節(jié)延時的時間。
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