Some have over-current protection circuit, when the current exceeds a certain rating, the fuse disconnects the machine to stop working to maximize the protection of machine safety.
电路部分具备过流保护功能，当电流超过一定额定值时，保险丝断开机器停止工作，最大限度的保护机器安全。
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Buying a washing machine larger than you need because it has more stars on the rating label will not save energy.