公司名称：广州山思自动化设备有限公司
联 系 人：廖学通
联系地址：广州市天河区燕岭路123号建设大厦1200室
塑壳断路器也被成为装置式断路器，所有的零件都密封于外壳中，辅助触点，欠电压脱扣器以及分励脱扣器等多采用模块化。由于结构非常紧凑，塑壳断路器基本无法检修。其多采用手动操作，大容量可选择电动分合。由于电子式过电流脱扣器的应用，塑壳断路器也可分为A类和B类两种，B类具有良好的三段保护特性，但由于价格因素，采用电磁式脱扣器的A类产品的市场占有率更高。 塑壳断路器是接地线端子外触头、灭弧室、脱扣器和操作机构等都装在一个塑料外壳内，一般不考虑维修，适用于作支路的保护开关，过电流脱扣器有电磁式和电子式两种，一般电磁式塑壳断路器为非选择性断路器，仅有长延时及瞬时两种保护方式，电子式塑壳断路器有长延时、短延时、瞬时和接地故障四种保护功能。部分电子式塑壳断路器新推出的产品还带有区域选择性连锁功能。大多数塑壳断路器为手动操作，也有部分带电动机操作。
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