surge-protect switch 电涌保护开关
Write Protect Switch 于产品上设置开关 ; 写入保护开关
automatic protect switch 自动保护切换 ; 自动保护倒换
file protect switch 文件保护开关
Intelligent Protect Switch 智能保护倒换
Switch port protect 端口保护
Function & application:Pressure protect switch. It is widely used on pressure protect of gas pipeline.
功能及用途：压力保护开关。广泛应用于各种气体压力保护。
Every machine is equipped with protect travel switch in order to increase safety coefficient for repairing and maintenance. It also has thermal overload relays to protect the motor.
每台机器均配有保护行程开关，为维修、保养增加一份安全系数。且装有热过载继电器，保护电机。
Drought Switch: Automatic shutdown and alarm when water supply is interrupted to protect the pump.
干旱开关：自动关机和报警时，供水中断，保护泵。
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