Safety device containing an audible alarm will break the circuit automatically when the pump is overloaded, temperature overheats or there is a shortage of oil or water.

• 设想周到的各种电子保护装置,如无熔丝开关,缺水或缺油,温度异常及泵浦过负荷等自动警示系统,回路能自动切断,确保安全。