Current discharge protection, over pressure protection, over temperature protection, over load fuse protection.
漏电保护，超压保护，超温保护，过载熔断保护。
AY42H, TA802Y type safety overflow valves are to be applied to pipelines in high-pressure pump stations to provide over pressure protection.
TA802Y型安全溢流阀可用于高压注水泵站的管路上，作为超压保护装置。
When have the over-load protection, the pressure overload, the red light or the yellow light glisten, and auto-stop.
配有过载保护装置，压力过载时，红灯或黄灯闪亮，并自动停机。
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