A pulse width modulation controller comprises a disabling unit, a level sensor and an over currentprotector.
脉冲宽度调制控制器，包括一个禁用单位，水平传感器和过电流保护。
2
No fuse breaker, over pressure, over heat and over current protectors for compressor, over temp. protector, over load protectorof fan, dry heat pr techto.
无熔丝开关，压缩机超压，过热，过电流保护超温保护，风机过载保护，保险丝，干烧保护器，缺水保护。
3
Sometimes protector too late to turn blocking action, soon, likely to be directly responsible for current motor burn down.