I've made a DC protection board using a microcontroller. When I detect DC or too low frequency I open the output relay. I have tested it a about full power (nearly 600/700W) and when the relay open it creates an arc. The relay is a Finder one (a big type). I open both contact that breaks the electric connection to of the speakers (which is for my test a resistive load in the water).
I supose my relay will destroy quickly. Is there special relay which are made for this purpose ?
Any comments would be appreciated.
David
I supose my relay will destroy quickly. Is there special relay which are made for this purpose ?
Any comments would be appreciated.
David