Protection devices of maximum current steady and cut-off electric circuit avoid further damage of failure phone circuit board.
最大电流恒定及截止式电路保护装置，免除故障手机线路板进一步损坏。
The leakage circuit breaker performance and protection types were introduced, examples of the phenomenon of leakage circuit breakers and the reasons for failure analysis.
简单介绍了漏电断路器的性能和保护种类，举例说明漏电断路器的常见故障现象及原因分析。
The phase-failure protection can be widely used in the electrical equipment without open-phase protection to make the control part free of the unnecessary damage of the open circuit failure.
此断相保护装置可广泛应用于无缺相保护的电气设备中，使设备控制部件免于遭受断路故障的不必要的损坏。
It can provide protection from over current, short circuit, undervoltage, phase failure, leakage lockout, and operation overvoltage.
具有过流、短路、欠压、断相、漏电闭锁、操作过电压等保护。
It can provide protection from over current, short circuit, undervoltage, phase failure, leakage lockout, and operation overvoltage.
具有过流、短路、欠压、断相、漏电闭锁、操作过电压等保护。
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