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展开相关工具设备

在异常情况下断开电流

通过大电流的电气配件

电气输出电路控制器件

二加三电源插座

漏电保护器

过载和短路保护

基本组成元件

应用普遍的保护器件

常用的控制电器元件

适用范围及种类较多

比较大型的电源开关

运行可靠坚固耐用电机

单向传导电流的元器件

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辅助模式