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#15 |
Supreme EcoRenovator
Join Date: Mar 2009
Location: Portland, OR
Posts: 4,004
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![]() I have noticed that a local solar company uses bi-metallic thermal disk switches, on the order of this:
You couldn't get a differential function, but at 25 amps and 240VAC max, it could turn the whole system on & off, very reliably, without standby current, without the need for a relay. Regards, -AC_Hacker %%%%%%%%%%%%%%%%%%%%%%%%%%% |
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controller, diy, hot water, solar |
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