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馬達 過載 保護 器
4 裝置無熔絲開關無熔絲開關為一種低壓過電流保護用斷路器當電路發生短路 故障時可啟斷故障電流無須更換熔絲可復啟使用電路正常時可啟斷負載 電流開關本體具有過載短路保護的特性依動作原理…
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