Power supply prevents thunder box

It protects the circuit against indirect lightning,direct lightning or other instantaneous over-voltage.

       Surge protector in the lightningproof box has failure-indicating device,green means normal,red means failure.

       Circuit breaker(fuse cutout)in the lightningproof box ensures reliable disconnection from the power grid when the surge protections is failed.

       Alarm is the execution part of failure-indicating device,it is able to output the failure of surge protector by means of sound and light.When the fault has not been eliminated in time,we can push down the button to stop the buzzer tempor arily,but the red indicator lamp would be still on,and the buzzer would make a sound again if the fault has not been eliminated 24h later.Users can select it as needed.