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PolySwitch PPTC在电动阀电机的典型保护应用

使用PolySwitch PPTC器件做电机的堵转保护和过温保护，是一个高性价比的防护方案，PolySwitch PPTC在短路、过流、过温、电机堵转等故障状态下，PPTC 器件在大电流和高温升双重作用下，能够比双金属温控器更快速的从低阻态突变为高阻态，能及时限制电机的电流而保护电机及控制设备。

并一直保持这种保护状态，只有在断电后PolySwitch PPTC器件才会由高阻状态恢复为低阻状态。不断电PolySwitch PPTC是不会恢复的，这可有效避免上述电动阀电机可能出现的和潜在的各种问题和隐患。(推荐阅读：JDTFUSE在大功率LED照明的应用)

标签: PPTC

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