This video is about how to test emergency shunt relay(ESR). We bulit a special tool to test this ESR, the video shows when the normal power supply energy, the normal lights work; How to the remote test the emergency lights; And when the normal power stop, how the emergency take over lighting. It switch to emergency lighting instantly once normal power stop. This emergency shunt relay not only work for lighting, also can work for other electric device, that depends on applicant usage.
If have interest, welcome to send inquiry and let's talk further usage! We offer customizing service too.
If have interest, welcome to send inquiry and let's talk further usage! We offer customizing service too.
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